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Ethiofencarb Solution 100ug/ml in Acetonitrile
乙腈中对硫磷溶液 广电计量
2,2-二乙基-1,3-丙二醇 标准品
甲醇中磺胺醋酰
双草醚
CNET 3 aldehydes mix solution, 10μg/ml (as formaldehyde, acetone, acetoaldehyde) in acetonitorile
2,4-Dichlorophenyl benzenesulfonate Solution in Acetonitrile
定制ICP混标
4-氨基-5-氯哒嗪-6-酮 BePure-21106
3,3',5,5'-Tetrachlorobiphenyl (无证书)