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2‘-羟基-2,4,4?三溴联苯醚 标准品
异辛烷/甲苯中PCB52溶液标准物质
克伦潘特-D5盐酸盐
1-Amino-3-methylisoquinoline-4-carbonitrile
3,3',5,5'-Tetrachlorobiphenyl (无证书)
Ellagic acid dihydrate (无证书)
Bifenthrin Solution 100ug/ml in tert-Butyl methyl ether
Claritas PPT Grade Lead 206 Isotope Standard 标液
Streptomycin Sulfate
3.4'.5-Trichloro-4-biphenylol (无证书)