一级标准物质
标准样品
质控品
计量院标准物质
环保部标准物质
农残标准物质
铁标准物质
冶金标样
土壤标准物质
中检院标准物质
4-(Hydroxymethyl)-1-methylpyrrolidin-2-ol
25mg
7-Hydroxy Methotrexate-d3 Ammonium Salt
10mg
4’-Hydroxy rac-Kavain-d3
5mg
N-Hydroxy-5-(4-methoxyphenoxy)pentanamide-d4
5mg
4-Hydroxy Levamisole
69359-04-2
25mg
8-Hydroxy-7-iodoquinoline-5-sulfonic Acid
547-91-1
500mg
3-Hydroxy-4-iodobenzoic acid
58123-77-6
250mg
3-Hydroxyisothiazole-5-carboxamide
62020-63-7
25mg
(S)-1-((E)-2-(((1r,3R,5R,7S)-3-Hydroxyadamantan-1-yl)imino)acetyl)pyrrolidine-2-carbonitri
3-Hydroxy-4-methoxy-2-nitrobenzaldehyde
6284-92-0
100mg
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