Sigma-Aldrich
Nickel
镍
O-Acetyl-L-serine hydrochloride
O-乙酰-L-丝氨酸 盐酸盐
蛋白胨 来源于酪蛋白, Peptone from casein, enzymatic digest
Platinum
铂
蛋白酶, Prolidase from porcine kidney
Ricinoleyl alcohol
Silver
银
Spermine
精胺
Tantalum
钽