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水中氧化铝 (浓度10000μg/ml)5%盐酸C

水中亚硫酸盐标样(浓度见批次)0.1%甲醛

1-溴-2-硝基苯 1-Bromo-2-nitrobenzene 1000ug/mL in Acetone

乙草胺-D11(HJ1053) Acetochlor D11 100ug/ml in Acetone

钙标液 1000mg/l

Diphenyl sulfide

Pioglitazone Hydrochloride

CDAA-280144-20mg

Dehydroandrographolide

3,6-Dimethylphenanthrene

Neoandrographolide

缓冲溶液总硬度检测专用 PH=10 溶剂：纯水

电子电器产品PE中的铅，汞，镉，总铬

pH 水质标液(9.182)

14 15 16 17 18 19 20 21 22 23