Trypsin Premium Grade, MS approved from porcine pancreas

Approved for use in in-gel digestion and mass spectrometry analysis.Modified by reductive methylation, no chymotryptic activity detectable.Specificity verified by digestion of oxidized B-chain of insulin.Trypsin NB Premium Grade, MS approved is suitable for digestion of proteins for mass spectrometry analysis. Reductive methylation of the lysine residues of trypsin results in a stable product that is extremely resistant to autolytic degradation. Trypsin NB Premium Grade, MS approved is purified by chromatography. No chymotryptic activity is detectable. Every lot is approved for use in in-gel digestion and mass spectrometry analysis. Each package contains also a Trypsin Peptide (TP) Standard allowing internal calibration for enhancing mass accuracy. The TP standard provides tryptic activity to generate masses m/z 842 and 2211.