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丙虫磷 BePure-25221
Carbon Monoxide in Nitrogen (Nominal 5000 μmol/mol)
左西替利嗪二盐酸盐溶液,100ppm
2,4-Dichloro-6-ethylamino-s-triazine 标准品
Pirimiphos-ethyl
Triflusulfuron-methyl
First Standard® 甲醇中乙基多杀菌素溶液,100μg/mL
PCB 15(4,4’-二氯联苯);10ng/ul于异辛烷 标准品
克仑塞罗-d10 BePure-21390XM
Ceftiofur