Agriculture/Environment

For quantitative determination of diamine oxidase and evaluation of drug modulators. Key Features: Fast and sensitive. Use of 10 µL sample. Linear detection range 0.5 to 6 U/L for 30 min reaction at 25°C. Convenient. The procedure involves adding a single working reagent, and reading the fluorescence at 0 and 30 minutes. Room temperature assay. No 37°C heater is needed. High-throughput. "Add-mix-read" type assay. Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Method: FL530/585nm. Samples: Serum, Plasma. Species: All. Procedure: Assay takes 30 min. Kit size: 100 tests. Detection limit: 0.5 U/L.

For quantitative determination of ammonia/ammonium and evaluation of drug effects on their metabolism. Key Features: Fast and sensitive. Linear detection range of 0.012 - 1 mM ammonia. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: FL360/450nm. Samples: Biological (eg urine) and environ-mental samples. Species: All. Procedure: Assay takes 15 min. Kit size: 200 tests. Detection limit: 12 µM.

For quantitative determination of acid phosphatase activity in biological samples. Key Features: Fast and sensitive. Linear detection range (20 µL sample): 0.008 to 10 U/L for a 30 minute reaction. High-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: FL360/450. Samples: Biological (e.g. serum) samples. Species: All. Procedure: Assay takes 30 min. Kit size: 100 tests. Detection limit: 0.008 U/L.

For quantitative determination of β-glucosidase activity and evaluation of drug effects on its metabolism. Key Features: High sensitivity and wide linear range. Use 20 µL sample. The detection limit is 2 U/L, linear up to 250 U/L. Homogeneous and simple procedure. Simple "mix-and-measure" procedure allows reliable quantitation of β-glucosidase activity within 20 minutes. Robust and amenable to HTS. All reagents are compatible with high-throughput liquid handling instruments. Method: OD405nm. Samples: Biological. Species: All. Procedure: Assay takes 20 min. Kit size: 100 tests. Detection limit: 2 U/L.

For quantitative determination of α-mannosidase enzyme activity. Key Features: Fast and sensitive. Linear detection range (10 µL sample): 1 to 250 U/L for a 10 minute reaction. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD405nm. Samples: Biological samples e.g. plasma, serum, tissue and culture media. Species: All. Procedure: Assay takes 10 min. Kit size: 100 tests. Detection limit: 1 U/L.

For quantitative determination of α-L-Fucosidase activity in biological samples. Key Features: High sensitivity and wide linear range. Linear detection range (10 µL sample): 1 to 100 U/L. Homogeneous and simple procedure. Simple add-mix-read procedure allows reliable quantitation of fucosidase activity within 20 minutes. Robust and amenable to HTS. All reagents are compatible with high-throughput liquid handling instruments. Can be readily automated to measure thousands of samples per day. Method: OD405nm. Samples: Plasma, serum, tissue, cell lysate, etc. Species: All. Procedure: Assay takes 20 min. Kit size: 100 tests. Detection limit: 1 U/L.

For quantitative determination of α-glucosidase activity and evaluation of drug effects on its metabolism. Key Features: High sensitivity and wide linear range. Use 20 µL sample. The detection limit is 2 U/L, linear up to 250 U/L. Homogeneous and simple procedure. Simple "mix-and-measure" procedure allows reliable quantitation of α-glucosidase activity within 20 minutes. Robust and amenable to HTS. All reagents are compatible with high-throughput liquid handling instruments. Method: OD405nm. Samples: Biological. Species: All. Procedure: Assay takes 20 min. Kit size: 100 tests. Detection limit: 2 U/L.

For quantitative determination of zinc ion Zn²⁺ and evaluation of drug effects on zinc metabolism. Key Features: Sensitive and accurate. Uses 50 µL samples. Linear detection range 0.12 µM (0.78 µg/dL) to 10 µM (65 µg/dL) zinc in 96-well assay format. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 30 min. Can be readily automated as a high-throughput assay for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvette or 96-well plate assay formats possible. Low interference in biological samples. No pretreatments are needed. Method: OD425nm. Samples: Serum, plasma, urine, saliva, food, beverage and environment. Species: All. Procedure: Assay takes 30 min. Kit size: 250 tests. Detection limit: 0.78 µg/dL (0.12 µM).

For quantitative determination of uric acid and evaluation of drug effects on uric acid metabolism. Key Features: Sensitive and accurate. Use 5 µL samples. Linear detection range 0.22 mg/dL (13 µM) to 30 mg/dL (1785 µM) uric acid in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 30 min. Can be readily automated as a high-throughput assay in 96-well plates for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvet or 96-well plate assay. Low interference in biological samples. No pretreatments are needed. Assays can be directly performed on serum samples. Method: OD590nm. Samples: Serum, plasma, urine and other biological samples. Species: All. Procedure: Assay takes 30 min. Kit size: 250 tests. Detection limit: 0.2 mg/dL (13 µM).

For quantitative determination of urease activity and evaluation/screen for urease inhibitors. Key Features: Safe. Non-radioactive assay. Sensitive and accurate. As low as 0.003 U/L urease activity can be quantified. Homogeneous and convenient. "Mix-incubate-measure" type assay. No wash and reagent transfer steps are involved. Robust and amenable to HTS: can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD670nm. Samples: Biological, environment etc. Species: All. Procedure: Assay takes 40 min. Kit size: 100 tests. Detection limit: 0.003 U/L.

For quantitative enzymatic determination of urea. Key Features: Fast and sensitive. Linear detection range (20 µL sample): 1 mg/mL (0.17 mM) to 100 mg/mL (17 mM) urea in 96-well plate assay. Convenient. The procedure involves adding a single working reagent, and reading the absorbance after 5 minutes. Room temperature assay. No 37°C heater is needed. High-throughput. Homogeneous "mix-incubate-measure" type assay.Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Method: OD557nm. Samples: Urea in biological samples (e.g. plasma, serum, urine) and food/beverage samples (e.g. milk). Species: All. Procedure: Assay takes 5 min. Kit size: 100 tests. Detection limit: 1 mg/mL (0.17 mM).

For quantitative determination of urea and evaluation of drug effects on urea metabolism. Key Features: Sensitive and accurate. Use 5 µL samples. Linear detection range 0.08 mg/dL (13 µM) to 100 mg/dL (17 mM) urea in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 20 min. Can be readily automated as a high-throughput assay for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvet or 96-well plate assay. Low interference in biological samples. No pretreatments are needed. Assays can be directly performed on raw biological samples i.e., in the presence of lipid and protein. Method: OD520nm (Chemical). Samples: Serum, plasma, urine, milk, cell/tissue culture, bronchoalveolar lavage (BAL), food, beverage and environment. Species: All. Procedure: Assay takes 30 min. Kit size: 100 tests. Detection limit: 0.08 mg/dL (13 µM).

For quantitative determination of sulfate ion and evaluation of drug effects on sulfate metabolism. Key Features: Sensitive and accurate. Detection range 0.02 mM (0.19 mg/dL) to 2 mM (19.2 mg/dL) sulfate in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 5 min. Method: OD600nm. Samples: Serum, urine, food and environment. Species: All. Procedure: Assay takes 5 min. Kit size: 200 tests. Detection limit: 20 µM.

For quantitative determination of sorbitol dehydrogenase enzyme activity. Key Features: Fast and sensitive. Linear detection range (20 µL sample): 0.1 to 125 U/L for 12 min reaction. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD565nm. Samples: Biological samples e.g. plasma, serum, urine, tissue and culture media. Species: All. Procedure: Assay takes 15 min. Kit size: 100 tests. Detection limit: 0.1 U/L.

For quantitative determination of salicylate in biological samples and beauty products, mouthwash, etc. Key Features: Fast and sensitive. Linear detection range: 0.8 mM (10.9 mg/dL) to 20 mM (274.2 mg/dL) salicylate with 20 µL sample (96-well). Convenient. The procedure involves adding a single working reagent. High-throughput. "Add-mix-read" type assay. Can be readily automated as a high-throughput 96-well or 384-well plate assay for thousands of samples per day. Method: OD560nm. Samples: Serum, plasma, urine, food, beverage, agriculture, drugs, beauty, mouthwash samples, etc. Species: All. Procedure: Assay takes 30 min. Kit size: 100 Tests.

For quantitative determination of phosphate and evaluation of drug effects on phosphate metabolism. Key Features: Sensitive and accurate. Linear detection range 0.3 µM (0.0028 mg/dL) to 50 µM (0.47 mg/dL) phosphate in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 30 min. Can be readily automated as a high-throughput assay for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Assays can be executed in cuvet or 96-well plate. Low interference in biological samples. No pretreatments are needed. Assays can be directly performed on raw biological samples i.e., in the presence of lipid, protein and minerals. Method: OD620nm (malachite green). Samples: Serum, urine, saliva, sweat, tissue culture, food, environment etc. Species: All. Procedure: Assay takes 30 min. Kit size: 500 tests. Detection limit: 3 µg/dL (0.3 µM).

For quantitative determination of peroxide and evaluation of drug effects on peroxide metabolism. Key Features: Sensitive and accurate. Enhanced color intensity using sorbitol. Detection range 0.2 µM (7 ng/mL) to 30 µM (1,020 ng/mL) H₂O₂ in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single detection reagent and incubation for 30 min. Can be readily automated as a high-throughput assay in 96-well plates for thousands of samples per day. Method: OD585nm. Samples: Serum, citrate-plasma, urine, cell lysate, culture media etc. Species: All. Procedure: Assay takes 30 min. Kit size: 250 tests. Detection limit: 0.2 µM.

For quantitative determination of peroxidase enzyme activity. Key Features: Fast and sensitive. Use as little as 10 µL samples. Linear detection range: colorimetric assays 2 to 50 U/L, fluorimetric assays 0.1 to 5 U/L peroxidase. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD570nm, or FL530/585nm. Samples: Biological. Species: All. Procedure: Assay takes 20 min. Kit size: 100 tests. Detection limit: OD, FL: 4, 0.8 U/L.

For quantitative determination of nitric oxide (nitrate/nitrite) and evaluation of drug effects on its metabolism. Key Features: Sensitive and accurate. Detection range 0.6 - 200 µM in 96-well plate. Rapid and reliable. Using an optimized VCl₃ reagent, the time required for reduction of nitrate (NO₃^-) to nitrite (NO₂^-) is reduced to 10 min at 60°C. Simple and high-throughput. The procedure involves mixing sample with three reagents, incubation for 10 min at 60°C and reading the optical density. Can be readily automated to measure thousands of samples per day. Method: OD540nm. Samples: Plasma, serum, urine, tissue/cells and foods. Species: All. Procedure: Assay takes 40 min. Kit size: 100 tests. Detection limit: 0.6 µM.

For quantitative determination of Mg²⁺ and evaluation of drug effects on magnesium metabolism. Key Features: Sensitive and accurate. Use as little as 5 µL sample. Linear detection range 0.1 mg/dL (41 µM) to 3 mg/dL (1.2 mM) Mg²⁺ in 96-well plate assay. Simple and high-throughput. The procedure involves addition of two reagents and measuring OD500nm. Can be readily automated as a high-throughput assay for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvet or 96-well plate assay. Low interference in biological samples. Assays can be directly performed in serum and urine samples. Method: OD500nm. Samples: Biological, food and beverage. Species: All. Procedure: Assay takes 10 min. Kit size: 250 tests. Detection limit: 0.1 mg/dL (41 µM).

For quantitative determination of lipase enzyme activity. Key Features: Sensitive and accurate. Linear detection range 40 to 1600 U/L lipase activity in 96-well plate assay. Convenient and high throughput. The procedure involves adding a single working reagent, and reading the optical density at 10 min and 20 min at room temperature or 37°C. Can be automated to process thousands of samples per day. Method: OD412nm. Samples: Serum, plasma, saliva, urine etc. Species: All. Procedure: Assay takes 20 min. Kit size: 100 tests. Detection limit: 40 U/L.

For quantitative determination of lactate dehydrogenase LDH activity and screen/evaluation of LDH modulators. Key Features: High sensitivity and wide linear range. Use 3 µL serum or plasma sample. The detection limit is 2 U/L, linear up to 200 U/L. Homogeneous and simple procedure. Simple "mix-and-measure" procedure allows reliable quantitation of LDH activity within 30 minutes. Robust and amenable to HTS. All reagents are compatible with high-throughput liquid handling instruments. Method: OD565nm. Samples: Serum, plasma etc. Species: All. Procedure: Assay takes 30 min. Kit size: 100 tests. Detection limit: 2 U/L.

For quantitative colorimetric kinetic determination of isocitrate dehydrogenase activity and evaluation of drug effects on its metabolism. Key Features: Fast and sensitive. Linear detection range (20 µL sample): 0.1 to 100 U/L for 30 min reaction. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD565nm. Samples: Plasma, serum,tissue and culture media etc. Species: All. Procedure: Assay takes 30 min. Kit size: 100 tests. Detection limit: 0.1 U/L.

For quantitative determination of iron ions Fe³⁺ and/or Fe²⁺ and evaluation of drug effects on iron metabolism. Key Features: Sensitive and accurate. Linear detection range 27 µg/dL (4.8 µM) to 1,000 µg/dL (179 µM) iron in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 40 min. Can be readily automated as a high-throughput assay for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvette or 96-well plate assay. Low interference in biological samples. No pretreatments are needed. Assays can be directly performed on serum samples. Method: OD590nm. Samples: Biological (e.g. serum) and environmental samples. Species: All. Procedure: Assay takes 30 min. Kit size: 250 tests. Detection limit: 27 µg/dL (4.8 µM).

For quantitative determination of indole and evaluation of drug effects on its metabolism. Key Features: Fast and sensitive. Use of 100µL sample. Linear detection range from 3 to 100 µM indole in 96-well plate assay. Convenient. The procedure involves adding a single working reagent, and reading the absorbance immediately. Method: OD565nm. Samples: Bacterial growth media and other biological samples. Species: All. Procedure: Assay takes 5 min. Kit size: 100 tests. Detection limit: 3 µM.

For quantitative colorimetric determination of glucose-6-phosphate concentration and evaluation of drug effects on its metabolism. Key Features: Fast and sensitive. Linear detection range (20 µL sample): 0.2 to 100 U/L for 15 min reaction. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD460nm. Samples: Plasma, serum, tissue and culture media, etc. Species: All. Procedure: Assay takes 20 min. Kit size: 100 tests. Detection limit: 0.2 U/L.

For quantitative determination of D-glucose dehydrogenase enzyme activity and drug effects on its metabolism. Key Features: Fast and sensitive. Linear detection range (20 µL sample): 0.5 to 200 U/L for 15 min reaction. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD565nm. Samples: Biological samples (e.g. plasma, serum, tissue and culture media). Species: All. Procedure: Assay takes 15 min. Kit size: 100 tests. Detection limit: 0.5 U/L.

For quantitative determination of glucose and evaluation of drug effects on glucose metabolism. Key Features: Sensitive and accurate. Use as little as 5 µL samples. Linear detection range 0.7 mg/dL (39 µM) to 300 mg/dL (16.6 mM) glucose in 96-well plate. Simple and convenient. The procedure involves addition of a single working reagent and incubation for 8 min in a boiling water bath. Improved reagent stability. The optimized formulation has greatly enhanced the reagent and signal stability. Low interference in biological samples. No pretreatments are needed. Assays can be directly performed on serum and plasma samples. Method: OD630nm. Samples: Biological, food and beverage. Species: All. Procedure: Assay takes 10 min. Kit size: 100 tests. Detection limit: 0.7 mg/dL (39 µM).

For quantitative determination of ferric reduction antioxidant potential (FRAP). Key Features: Sensitive and accurate. Linear detection range: 0.5 to 180 µM Fe³⁺ reduction potential in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 40 min. Can be readily automated as a high-throughput assay for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Method: OD590nm. Samples: Plant extracts, foods, vitamins, supplements, and biological samples such as serum, plasma, and urine. Species: All. Procedure: Assay takes 40 min. Kit size: 250 tests. Detection limit: 0.5 µM.

For quantitative determination of ethanol and alcohol metabolism. Key Features: Sensitive and accurate. Detection range 0.04 - 4% alcohol in 96-well plate assay. Convenient and high-throughput. The procedure involves adding a single working reagent, incubation for 8 min, adding a Stop Reagent, and reading the optical density. Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Versatility. Assays can be executed in 96-well plate or cuvet. Method: OD580nm (Chemical). Samples: Alcoholic beverages etc. Species: All. Procedure: Assay takes 10 min. Kit size: 500 tests. Detection limit: 0.04%.

For quantitative determination of detergents in e.g. water and soil samples. Key Features: Sensitive and accurate. Use 20 µL sample. Linear detection range: Tween 80: 0.012 to 4 mM; Tween 20: 0.06 to 5 mM; Triton X-100: 0.23 to 12 mM; Brij L23/35: 0.09 to 5 mM; DTAC: 0.08 to 2 mM; SDS: 10 to 25 mM. Simple and convenient. The procedure involves addition of two reagents and measuring OD560nm or OD650nm. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvette or 96-well plate assay. Method: 560nm and 650nm. Samples: Biological and environmental samples. Species: All. Procedure: Assay takes 15 min. Kit size: 100 tests. Detection limit: Tween 80: 0.012 to 4 mM; Tween 20: 0.06 to 5 mM; Triton X-100: 0.23 to 12 mM; Brij L23/35: 0.09 to 5 mM; DTAC: 0.08 to 2 mM; SDS: 10 to 25 mM.

For quantitative determination of copper(II) ion and evaluation of drug effects on Cu metabolism. Key Features: Sensitive and accurate. Linear detection range 7 µg/dL (1.0 µM) to 300 µg/dL (47 µM) copper in 96-well plate assay. Simple and high-throughput. The simple procedure can be readily automated as a high-throughput assay in 96-well plates for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvet or 96-well plate assay. Method: OD359nm. Samples: Biological, environment, food and beverage. Species: All. Procedure: Assay takes 10 min. Kit size: 250 tests. Detection limit: 7 µg/dL (1.0 µM).

For quantitative determination of chromium Cr(VI). Key Features: Sensitive and accurate. Linear detection range of 20 - 2000 µg/L Chromium. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. No wash and reagent transfer steps are involved. Can be readily automated for processing thousands of samples per day. Method: OD480nm. Samples: Biological (serum, plasma etc), environmental (water, soil etc), food and beverage samples. Species: All. Procedure: Assay takes 20 min. Kit size: 250 tests. Detection limit: 20 µg/L (0.38 µM, 0.02 ppm).

For quantitative determination of chloride ion and evaluation of drug effects on chloride metabolism. Key Features: Sensitive and accurate. Use as little as 5 µL samples. Linear detection range 0.7 mg/dL (0.2 mM) to 35 mg/dL (10 mM) Cl^- in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 5 min. Can be readily automated as a high-throughput assay for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvet or 96-well plate assay. Low interference in biological samples. No pretreatments are needed. Assays can be directly performed on raw biological samples i.e., in the presence of lipid, protein and minerals such as magnesium, iron and zinc. Method: OD610nm. Samples: Biological, food and environment. Species: All. Procedure: Assay takes 5 min. Kit size: 250 tests. Detection limit: 0.7 mg/dL (0.2 mM).

For quantitative determination of calcium ion Ca²⁺ and evaluation of drug effects on calcium metabolism. Key Features: Sensitive and accurate. Use as little as 5 µL samples. Linear detection range 0.08 mg/dL (20 µM) to 20 mg/dL (5 mM) Ca²⁺ in 96-well plate assay. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 3 min. Can be readily automated as a high-throughput assay for thousands of samples per day. Improved reagent stability and versatility. The optimized formulation has greatly enhanced reagent and signal stability. Cuvet or 96-well plate assay. Low interference in biological samples. No pretreatments are needed. Assays can be directly performed on raw biological samples i.e., in the presence of lipid, protein and minerals such as magnesium, iron and zinc. Method: OD612nm. Samples: Biological, food and environment. Species: All. Procedure: Assay takes 3 min. Kit size: 500 tests. Detection limit: 0.08 mg/dL (20 µM).

For quantitative determination of boron in agricultural and environmental samples. Key Features: Fast and sensitive. Linear detection range: 0.05 to 10 µg/mL (0.05 - 10 ppm) boron with 100 µL sample (96-well). Convenient. The procedure involves adding a single working reagent. High-throughput. "Add-mix-read" type assay. Can be readily automated as a high-throughput 96-well or 384-well plate assay for thousands of samples per day. Method: OD420nm. Samples: Water, plant tisse, soil samples, and antibody conjugation solutions. Species: All. Procedure: Assay takes 40 min. Kit size: 100 tests. Detection limit: 0.05 µg/mL or 0.05 ppm.

For quantitative determination of ATPase or GTPase activity and high-throughput screen for their inhibitors. Key Features: High sensitivity. Detection of 0.007 U/L ATPase or GTPase activity. Fast and convenient: single reagent, homogeneous "mix-and-measure" assay allows quantitation of enzyme activity within 30 minutes. Robust and amenable to HTS: detection at 620nm greatly reduces potential interference by colored compounds. Z factors of >0.7 are observed in 96-well and 384-well plates. Can be readily automated on HTS liquid handling systems. Method: OD620nm. Samples: ATPase and GTPase. Species: All. Procedure: Assay takes 30 min. Kit size: 200 tests. Detection limit: 0.007 U/L.

For quantitative determination of arginase activity and screen for its inhibitors. Key Features: Sensitive and accurate. Detection limit: 0.3 U/L for 2 hr arginase reaction in 96-well assay format. Simple and high-throughput. The procedure involves incubation of the provided substrate with the sample in a microplate followed by the addition of the coloring reagent. Can be readily automated as a high-throughput assay for thousands of samples per day. Method: OD430nm. Samples: Enzyme preparations, serum, plasma, tissue culture etc. Species: All. Procedure: Assay takes 2 hrs. Kit size: 100 tests. Detection limit: 1 U/L (0.3 U/L for 2 hr reaction).

For quantitative determination of total antioxidant capacity (TAC) and evaluation of drug effects on TAC metabolism. Key Features: Sensitive and accurate. Use 20 µL sample. Linear detection range from 1.5 to 1000 µM Trolox equivalents. Simple and high-throughput. The procedure involves addition of a single working reagent and incubation for 10 min. Can be readily automated as a high-throughput assay for thousands of samples per day. Method: OD570nm. Samples: Serum, plasma, urine, saliva, food and beverage etc. Species: All. Procedure: Assay takes 20 min. Kit size: 100 tests. Detection limit: 1.5 µM.

For quantitative determination of alkaline phosphatase (ALP) activity using stable p-nitrophenol phosphate substrate. Key Features: High sensitivity and wide linear range. Use 5 µL serum or plasma sample. The detection limit is 2 U/L, linear up to 800 U/L. Homogeneous and simple procedure. Simple "mix-and-measure" procedure allows reliable quantitation of ALP activity within 5 minutes. Robust and amenable to HTS. All reagents are compatible with high-throughput liquid handling instruments. Method: OD405nm. Samples: Serum, plasma etc. Species: All. Procedure: Assay takes 4 min. Kit size: 250 tests. Detection limit: 2 U/L.

For quantitative determination of alcohol dehydrogenase activity and evaluation of drug effects on its metabolism. Key Features: Fast and sensitive. Linear detection range (20 µL sample): 0.4 to 80 U/L for 30 min reaction. Detection Limit of 0.1 U/L for 120 min reaction. Convenient and high-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD565nm. Samples: Biological (e.g. plasma, serum, urine, tissue and culture media). Species: All. Procedure: Assay takes 30 min. Kit size: 100 tests. Detection limit: 0.4 U/L.

For quantitative determination of acid phosphatase activity in biological samples. Key Features: Fast and sensitive. Linear detection range (20 µL sample): 0.05 to 60 U/L for a 30 minute reaction. High-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD405nm. Samples: Biological (e.g. serum) samples. Species: All. Procedure: Assay takes 30 min. Kit size: 100 tests. Detection limit: 0.05 U/L.

For evaluation and high-throughput screen (HTS) of acetylcholinesterase modulators. Key Features: Fast and sensitive. Linear detection range 10 to 600 U/L for a 10 minute reaction at room temperature. High-throughput. Homogeneous "mix-incubate-measure" type assay. Can be readily automated on HTS liquid handling systems for processing thousands of samples per day. Method: OD412nm. Samples: Acetylcholinesterase. Species: All. Procedure: Assay takes 30 min. Kit size: 100 tests.

For quantitative determination of acetylcholinesterase activity and evaluation of acetylcholinesterase inhibitors. Key Features: Sensitive and accurate. Detection range 10 to 600 U/L AChE activity in 96-well plate assay. Convenient. The procedure involves adding a single working reagent, and reading the optical density at 2 min and 10 min at room temperature. High-throughput. Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Method: OD412nm. Samples: Blood, serum, plasma etc. Species: All. Procedure: Assay takes 10 min. Kit size: 100 tests. Detection limit: 10 U/L.

For quantitative determination of phosphatase activity.

Measures absorbance. Compatible assays include Histamine, L-Lactate, D-Lactate, Glutamate, and Free Amino Nitrogen. Requires PCR tubes.

For sensitive and high-throughput phosphate determination. Key Features: Reagent very stable. Due to our innovative formulation, no precipitation of reagent occurs. Therefore no filtration of reagent is needed prior to assays, as is often required with other commercial kits. High sensitivity and wide detection range: detection of as little of 20 pmoles of phosphate and useful range between 0.4 µM and 50 µM phosphate. Fast and convenient: single reagent "mix-and-measure" assay allows quantitation of free phosphate within 30 minutes. Compatible with routine laboratory and HTS formats: assays can be performed in tubes, cuvettes or microplates, on spectrophotometers and plate readers. Robust and amenable to HTS: Z factors of 0.7 to 0.9 are observed in 96-well plates. Can be readily automated on HTS liquid handling systems Method: OD620nm (malachite green). Samples: Enzyme reactions with free phosphate releases. Species: All. Procedure: Assay takes 30 min. Kit size: 500 tests. Detection limit: 0.4 µM.

For quantitative determination of NADP and NADPH and evaluation of drug effects on their metabolism.

For sensitive determination of NAD and NADH and evaluation of drug effects on NAD/NADH metabolism. Key Features: Sensitive and accurate. Detection limit of 0.02 µM and linearity up to 1 µM NAD+/NADH in 96-well plate assay. Convenient. The procedure involves adding a single working reagent, and reading the fluorescence at time zero and 10 min. High-throughput. Can be readily automated as a high-throughput 96-well plate assay for thousands of samples per day. Method: F530/585nm. Samples: Cell, tissue extracts etc. Species: All. Procedure: Assay takes 10 min. Kit size: 100 tests. Detection limit: 0.02 µM.