We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Doug Mahoney Doug Mahoney is a writer covering home-improvement topics, ...

Angiotensin, ammonium bicarbonate, apomyoglobin, cresyl violet, cytochrome c, Glu-fibrinopeptide B, insulin, insulin chain A, Leu-enkephalin, trypsinogen, sinapinic acid, trifluoroacetic acid (TFA; ...