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[求助] 急求,pH梯度怎么优化

对于走pH梯度实验,流动相除有机相外,还有两个不同pH的盐溶液,即pH3和pH5,优化了好久也没有找到合适的梯度把峰很好的分开,我该怎么进一步优化梯度?还有就是对于走完的一针,色谱柱是否需要用10:90水-甲醇冲洗30分钟后在平衡30min再进样,感觉这样很复杂、慢,整个冲洗和平衡时间要比检测时间长很多,一天也做不了几针?求做过此类实验的高手赐教,谢谢!
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