| 分子式 | |
| 其他事项 | 4.120166Sodium Carbonate anhydrousprimary standard, ACS-ISONa2CO3 M.= 105.99CAS No. 497-19-8 Assay (Acidim.) (after dried at 120°C. 2 h) 99.95 ~ 100.05% MAXIMUM LIMIT OF IMPURITIES Insoluble matter in H2O 0.005%Reducing substances I2 0.005%Nitrogen compounds (as N) 0.001%Chloride (Cl) 0.001% Phosphate (PO4) 0.001%Sulphur compounds (as SO4) 0.003% Silicate (as SiO2) 0.005%Heavy metals (as Pb) 0.0005%Al 0.001% Cu 0.0005% Mg 0.002%As 0.0001% Fe 0.0005% Ni 0.0005%Ca 0.005% K 0.005% Pb 0.0005% |
二丙二醇甲醚检测标准品
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水中N-ε-羧乙基-L-赖氨酸溶液
编号:1ST160848-100W CAS号:5746-03-2 规格:1mL 浓度:100μg/mL
消螨酚
编号:ACHE-N-10331-100MG(F2468) 规格:100MG
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编号:CDGG-132957-03-1ml 规格:100mg/L于正己烷,1 mL
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编号:CDGG-132910-03-1ml 规格:100mg/L于正己烷,1 mL
定制混标20 标准品
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