品牌:西陇化工
型号:国标
规格:HPLC4L 500ml
起订:100瓶
供应:10000瓶
发货:3天内
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色谱乙腈是指用于色谱分析、色谱分离、色谱制备的乙腈试剂。scharlau的色谱乙腈应用试剂无疑是世界范围内公认的优质产品
ACS/HPLC 溶剂特点 | 为用户带来的好处 |
• 低 UV 背景吸收
|
• 避免了鬼峰及错误结论 |
• 低固体颗粒及挥发残留 | • 减少了色谱柱的污染及系统堵塞
|
• 低含水量 | • 避免了正相色谱柱的失活 |
• 优异的批次稳定性 | • 更换批次时无需更改 HPLC 标准方法
|
***公司提供色谱乙腈技术参数: | |
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)
|
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 |