固定液：6%氰丙基苯基-94%甲基聚硅氧烷

極性： 中等極性

使用溫度：40℃～240℃

規(guī)格：30m*0.53mm*3um

型號：OV-624

應(yīng)用：《中國藥典》中GC法測定甲醇量

      滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司，討論《中國藥典》2010年版第三增補(bǔ)本中GC法測定甲醇量檢查法中存在的問題。方法分別比較《中國藥典》2010年版一部附錄ⅨT及第三增補(bǔ)本所載方法進(jìn)行實(shí)驗(yàn),并對結(jié)果進(jìn)行分析比較。結(jié)果《中國藥典》2010年版第三增補(bǔ)本所載甲醇量測定方法在實(shí)際操作中存在頂空進(jìn)樣平衡時(shí)間及分流比設(shè)定不合理的問題。結(jié)論應(yīng)延長平衡時(shí)間,增大分流比比例,以更好運(yùn)用于實(shí)際檢驗(yàn)工作。




Determination of methanol content by GC method in "Chinese Pharmacopoeia"
The GC method in "Chinese Pharmacopoeia" to determine the amount of methanol Details:

Name: Capillary Column
Fixing fluid: 6% cyanopropyl phenyl-94% methyl polysiloxane

Polarity: medium polarity

Operating temperature: 40℃～240℃

Specification: 30m*0.53mm*3um

Model: OV-624

Application: GC method in "Chinese Pharmacopoeia" to determine the amount of methanol

       Tengzhou Haohan Chromatography Instrument Technology Service Co., Ltd. discussed the problems in the GC method for the determination of methanol content in the third supplement to the 2010 edition of the Chinese Pharmacopoeia. Methods Compare the methods contained in Appendix ⅨT and Third Supplement of the 2010 edition of Chinese Pharmacopoeia to conduct experiments, and analyze and compare the results. Results The method for measuring the amount of methanol contained in the third supplement to the 2010 edition of the Chinese Pharmacopoeia had problems in the actual operation of unreasonable headspace sampling equilibrium time and split ratio settings. Conclusion The balance time should be prolonged and the ratio of shunt ratio should be increased to better use it in actual inspection work.