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鱼肉粉中的甲基睾酮 BQC1360124122
2,4-Dimethylsulfolane
ATRATON PESTANAL (2-ETHYLAMINO-4-ISOPROP 标准品
2,2’,5,5’-四溴联苯
Decyl aldehyde (DNPH Derivative) Solution 1000ug/ml in Methanol:Acetonitrile (80:20)
百草枯农药纯度标准物质
Lutetium Oxide (Lu2O3) 99.99%(有证书)
Methylsalicylate
大米粉中汞成分分析标准物质
91894, Sewage sludge (mixed origin) (tra ce elements) 标准品