β-丙氨酸,β-Alanine;Pharmaceutical Secondary Standard; Certified Reference Material
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二乙二醇,Diethylene glycol [DEG];Pharmaceutical Secondary Standard; Certified Reference Material
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L-胱氨酸,L-Cystine;Pharmaceutical Secondary Standard; Certified Reference Material
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氯化铽(III)六水合物,Terbium(III) chloride hexahydrate;99.9% trace metals basis
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三乙二醇,Triethylene glycol;ReagentPlus®, 99%
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乙二胺四乙酸四钠盐水合物,Ethylenediaminetetraacetic acid tetrasodium salt hydrate;≥97.0% (KT)