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4.4′-滴滴涕 BePure-21645YB
β-环柠檬醛 标准品
Potassium - 1% HNO3
D-Alanine-3,3,3-d3 标准品
GPC标样-葡聚糖(Mw 144,100) 标准品
2,3,4-/2,3,6-Trimethylbenzothiophene
Di-n-butylphthalate Solution 100ug/ml in Acetonitrile
10种烷烃混标
Lead pyrophosphate
托曲珠利砜-D3 BePure-26078