Please see the following answeres.
# A reagent containing sodium azide, but please let me know exactly what abc diluent buffer is.
ABC duiluent buffer contains 0.02% sodium azide, 0.5% BSA, 0.2% Tris and 1% Nacl.
# Expression system for standard: Bovine peptide. Please let me know if this is an unpurified peptide derived from cattle.
The immunogen of the standard is synthesized peptide.
# stop solution: Sulfuric acid-2N
The MSDS stated 2%.
Please let me know which is correct, as the concentration is completely different between 2% and 2N.
The stop solution is 2% sulfuric acid.