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Polyoxyl20 Stearyl Ether
First Standard® 除虫菊素I
Carbazole Kit (including 0378.12-K-T, 0376.12-K-T, 1383.13-200-T, 1384.13-200-T, 0379.13-K-T, 1207.1
甲醛-DNPH 溶液,30ppm
SUPERPHOSPHATE (various parameters) 标准品
52663, Sea lettuce (ulva-lactuca) (trace elements) 标准品
Chinese Corktree (Phellodendron chinense) Bark RGBRM 标准品
CYCLOHEXYLCYCLOHEXANONE, 2-(SG) 标准品
2,3,4,5-四氯硝基苯
羟基双氯芬酸