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D-5442 Column Resolution standard 标准品
Phthalate Esters Mix 1,2000ng/ul 标准品
6种环己烯酮类除草剂(GB 23200.38-2016) 标准品
Sertraline Hydrochloride Related Compound A
炔孕酮
0.1% Pd in 5% HNO3(有证书)
猛杀威甲醇溶液, 100ppm
己醛-d12 标准品
14种偶氮染料混标 标准品
Gasoline Range Organics #1 - GRO/DRO 1000ug/ml in Methanol