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Acid Surrogate Standard 标准品
Methyl Esters in Rapeseed Oil 标准品
First Standard® 甲醇中喹噁啉-2-羧酸溶液; 喹喔啉-2-羧基溶液,1000μg/mL
嗪草酮/塞克津(溶剂:甲醇)
丙酮中残杀威溶液标准样品
Acenaphthene and acenaphthylene Kit (solutions)
2,3,3',4',5,5',6-Heptachlorobiphenyl Solution 100ug/ml in Hexane (无证书)
2,4,5-Trichlorophenol ethanolamine salt,certified 标准品
三甲基锡
DinosebacetatePESTANAL®