PEG-20M毛细管柱 中国药典2015年版甲醇测定

中国药典2015年版甲醇测定, 液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，天然气，变压器油，多氯联苯，植物油，6号溶剂残留，裂解进样器，增塑剂

中国药典2015年版甲醇测定
中国药典2015年版甲醇测定 详细信息：

名称：毛细管柱

规格：30m*0.25mm*0.25um

型号：PEG-20M

浩瀚色谱（山东）应用技术开发有限公司对《中国药典》2015年版甲醇量检查法(法)进行探讨。方法:用乙醇溶液代替水为溶剂配制甲醇对照品溶液,采用气相色谱法,顶空进样的方式,测定含乙醇制剂中的甲醇量。结果:改进后的方法经方法学验证,回收率为99.3%,重复性试验RSD为2.9%。结论:改进后的方法使对照品溶液和样品溶液基体相匹配,测得值更接近样品中甲醇的真实含量,建议采用改进后的方法测定含乙醇制剂中的甲醇量。

中国药典2015年版甲醇测定 测试谱图：



Determination of methanol in Chinese Pharmacopoeia 2015 edition
Determination of methanol in Chinese Pharmacopoeia 2015 Edition Details:

Name: Capillary Column

Specification: 30m*0.25mm*0.25um

Model: PEG-20M



Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. discussed the methanol content inspection method (the first method) of the 2015 edition of the Chinese Pharmacopoeia. Method: Using ethanol solution instead of water as the solvent to prepare methanol reference solution, using gas chromatography and headspace sampling method to determine the amount of methanol in ethanol preparations. Results: The improved method was verified by methodology, the recovery rate was 99.3%, and the RSD of the repeatability test was 2.9%. Conclusion: The improved method matches the matrix of the reference solution and the sample solution, and the measured value is closer to the true content of methanol in the sample. It is recommended that the improved method be used to determine the amount of methanol in ethanol-containing preparations.

Determination of methanol in Chinese Pharmacopoeia 2015 Edition Test spectrum: