Process diagnosis for synthesizing reaction of N-acetyl-L-cysteine by thin layer chromatography(薄层色谱法对N-乙酰-L-半胱氨酸工艺流程诊断)
建立了用薄层层析和薄层扫描法对N-乙酰-L-半胱氨酸合成进行流程诊断的方法.采用硅胶G板,以正丁醇-醋酸-水(4.5∶1.5∶1)为展开剂,单波长直线扫描,扫描波长λ=700 nm.对合成反应的初始阶段、反应中、反应后取样样品进行定性和定量检测.原料在反应滴加后的初始阶段转化率达到97.08%,说明水相合成法较为合理,有效地抑制了L-半胱氨酸的氧化.设计的流程诊断法对N-乙酰-L-半胱氨酸和半胱氨酸盐酸盐的线性范围分别为15.1~36.5mg/mL、1.5~3.1mg/mL.平均回收率分别为99.93%~100.05%、99.94%~100.10%.RSD分别为0.32%~0.34%、0.31...
Main Authors: | CUIYan-li(崔艳丽), WANChang-chun(万长春), MAOJian-wei(毛建卫) |
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Format: | Article |
Language: | zho |
Published: |
Zhejiang University Press
2004-01-01
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Series: | Zhejiang Daxue xuebao. Lixue ban |
Subjects: | |
Online Access: | https://doi.org/zjup/1008-9497.2004.31.1.62-65 |
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