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正己烷中狄氏剂标准溶液
ACETALDEHYDE-D4 (D, 99%)
氯氰菊酯-D5 BePure-21549-D5-1mg
POLYETHYLENE OXIDE STAND. 10'000 CERTIF.REF. MAT. ACC.TO BAM 标准品
2-(1-Amino-1-methylethyl)-N-(4-fluorobenzyl)-5-hydroxy-1-methyl-6-oxo-1,6-dihydropyrimidine-4-carbox
氧化锌纯度(络合量)标准物质
Loperamide-d$6$ 标准品
HARICOTS BEANS (dietary fibre) 标准品
DIFLUOROMETHYLORNITHINE(RG) 标准品
Hamamelitannin 标准品