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定制VOC混标 标准品
N-(3-Aminopropyl)cyclohexylamine (无证书)
萎锈灵 BePure-20975XM
First Standard® 甲醇中4种β-受体激素混标溶液,100μg/mL
坐果安
80440, RICE FLOUR (AMYLOSE, HIGH LEVEL) 标准品
吡丙醚(蚊蝇磷)(符合:GB 2763-2016)
Formaldehyde (DNPH Derivative) Solution 1000ug/ml in Methanol:Acetonitrile (80:20)
Dioxydemeton-S-methyl Solution 100ug/ml in Toluene
甲醇中噻虫胺