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Urea
N,N-Dimethyl-p-nitroaniline (无证书)
1.2.3.5-Tetrachlorobenzene Solution 100ug/ml in Hexane
N-Methylpropionamide (无证书)
2-Amino-3-methyl-3H-imidazo[4,5-F]isoquinoline Hydrobromide
Tri-iso-propyl-d21-phosphine 标准品
丙酮中β-666溶液标准物质
1-Chlorohexadecane-d33 标准品
乙腈中2种孔雀石绿类同位素药物内标物混标(完全符合:SZDBZ323-2018水产品养殖水中21种磺胺类、氯霉素类、四环素类、硝基呋喃类、喹诺酮类和孔雀石绿的测定高效液相色谱-串联质谱法)
Washington EPH Fractionation Check Mixture (repkg) 25ug/ml in Hexane