中國藥典2015年版甲醇測定, 液化石油氣，二甲醚，甲縮醛，乙縮醛，乙醇，室內(nèi)空氣，焦爐煤氣，煉廠氣，天然氣，變壓器油，多氯聯(lián)苯，植物油，6號溶劑殘留，裂解進樣器，增塑劑

中國藥典2015年版甲醇測定
中國藥典2015年版甲醇測定 詳細信息：

名稱：毛細管柱

規(guī)格：30m*0.25mm*0.25um

型號：PEG-20M

浩瀚色譜（山東）應用技術開發(fā)有限公司對《中國藥典》2015年版甲醇量檢查法(法)進行探討。方法:用乙醇溶液代替水為溶劑配制甲醇對照品溶液,采用氣相色譜法,頂空進樣的方式,測定含乙醇制劑中的甲醇量。結果:改進后的方法經(jīng)方法學驗證,回收率為99.3%,重復性試驗RSD為2.9%。結論:改進后的方法使對照品溶液和樣品溶液基體相匹配,測得值更接近樣品中甲醇的真實含量,建議采用改進后的方法測定含乙醇制劑中的甲醇量。

中國藥典2015年版甲醇測定 測試譜圖：



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: