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AROCLOR STANDARD MIX 1, 5X1ML, ACETONE:MEOH(40:60),VARIED CONCENTRATION 标准品
3-Chloro-1,2-propanediol Dioleate Standard
2,2',6,6'-四氯联苯
Bromophenol Kit (3822.6-K-IP, 2383.6-K-IP, 3721.6-K-IP, 2061.6-K-IP, 2470.6-K-IP, 2472.6-K-IP, 8595.
环丙沙星溶液, 1000ppm
1-Pentanol
麝香草酚 对照品
20种农药混标 BePure-27399LC-1
乙环唑溶液,1000ppm
羟喜树碱 对照品