色譜乙腈是指用於色譜分析、色譜分離、色譜製備的乙腈試劑。scharlau的色譜乙腈套用試劑無疑是世界範圍內公認的優質產品。
色譜乙腈
ACS/HPLC 溶劑特點 | 為用戶帶來的好處 |
· 低 UV 背景吸收 · 優異的 HPLC 梯度洗脫基線 | · 避免了鬼峰及錯誤結論 |
· 低固體顆粒及揮發殘留 | · 減少了色譜柱的污染及系統堵塞 · 使用前無需過慮 |
· 低含水量 | · 避免了正相色譜柱的失活 |
· 優異的批次穩定性 | · 更換批次時無需更改 HPLC 標準方法 · 高通量生產中降低了次品率 |
***公司提供色譜乙腈技術參數: | |
400-254 nm | max. 0.005 |
220 nm | max. 0.01 |
200 nm | max. 0.05 |
UV Cut-off, nm | max. 190 |
Gradient Elution Test (a.u.): | |
254 nm | max. 0.005 |
210 nm | max. 0.005 |
Density (g/mL) at 25°C | 0.775 - 0.780 |
Fluorescence Trace Impurities, in ppb, measured as Quinine Base: | |
at 450 nm Emission | max. 0.3 |
at Emission Maximum for Impurities | max. 1.0 |
Assay (CH3CN) (by GC, corrected for water) | min. 99.9 % |
Appearance | Passes Test |
Color (APHA) | max. 10 |
Residue after Evaporation | max. 1 ppm |
Titrable Acid (µeq/g) | max. 0.8 |
Titrable Base (µeq/g) | max. 0.6 |
Water (by KF, coulometric) | max. 100 ppm |
Carbonyl Compounds (as Acetone) | max. 25 ppb |
For Laboratory, Research or Manufacturing Use |