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标准品 有证书100ppm溶于甲苯
室内大气分析用50种成分混标 标准品
Certified Waste Water - Demand Solution - TOC 1ug/ml
3-(4-甲基-1-哌嗪亚胺甲基)
2,6-Dimethylnaphthalene-d12 标准品
(S)-N-[2-[7-Allyl-5-bromo-2,3-dihydro-6-hydroxy-1H-inden-1-yl]ethyl]propanamide
Stainless Steel 17Cr-9Ni
植物源性食品中4种农药混标 BePure-30718XA-a
Firemaster PHT4(Tetrabromophthalic anhydride) 标准品
Methyl 12-hydroxy-cis-9-octadecenoate (Ricinoleate) C18:1 标准品
N’-(5-Aminopentyl)-N-(4-methoxybenzyl)-N’-methyl-N-2-pyridinyl-1,2-ethanediamine, Dimaleate Salt