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2-Chloro-1,3-propanediol(2-MCPD) 标准品
Benzoylecgonine-D3 标准品
特丁硫磷 BePure-25791YB
First Standard® 2,3,5-混杀威
2,2',3,4,5-Pentachlorobiphenyl (无证书)
First Standard® 嘧霉胺
First Standard® 乙腈中吡唑醚菌酯溶液,100μg/ml
HSL Volatile Standards Mixture (repkg) 200ug/ml in Methanol:Water (90:10)
First Standard® 甲醇中久效威亚砜溶液,100μg/mL
二甲草胺溶液, 100ppm