碘化锌,Zinc iodide;anhydrous, powder, 99.999% trace metals basis
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柠檬酸,Citric acid;Pharmaceutical Secondary Standard; Certified Reference Material
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丙酮酸,Pyruvic acid;98%
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氧化铅(II),Lead(II) oxide [PbO];99.999% trace metals basis
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碳酸二乙酯,Diethyl carbonate [DEC];≥99%, acid <10 ppm, H2O <10 ppm
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蛋白酶来源于牛胰腺,Protease from bovine pancreas;Type I, ≥5 units/mg solid
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乙二醇,Ethylene glycol [EG];Vetec™, reagent grade, 98%