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3-氯-1-丙烯 标准品
苯并(b)荧蒽标准品;200ug/mL,1mL
3-Fluorochrysene
2,5-DICHLORONITROBENZENE PESTANAL, 250 M 标准品
乙醚酚磺酸酯
Mepiquat chloride Solution in Water
灭草松 Bepure-GBW(E)083138
Paraquat dichloride tetrahydrate Solution 100ug/ml in De-ionized water
2-羟基联苯
腐霉利农药纯度标准物质