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Praziquantel
丙酮中地虫硫磷
Benzo[c]quinoline
Acetyl 6-O-(2,3,4,6-Tetra-O-acetyl-α-D-mannopyranosyl)-2,3,4-tri-O-acetyl-D-mannopyrannose
(R)-Atenolol
7种羰基DNPH衍生物混标 标准品
乙醇 标准品
21种磺胺同位素混标套装-2 BePure-27231LM
2.4-Dihydroxybenzaldehyde (无证书)
马拉硫磷
TCLP Semi-Volatiles Spiking Mixture 2000ug/ml in Acetone