HH-624毛細(xì)管柱 測(cè)定藥用聚乙烯醇中甲醇溶劑殘留量

，采用氣相色譜法分析，記錄揮發(fā)性組分的譜圖，然后用標(biāo)準(zhǔn)回歸曲線法計(jì)算揮發(fā)性組分的含量；分析條件為：采用HH-624型色譜柱，采用FID檢測(cè)器，柱溫40℃，檢測(cè)器溫度200℃；進(jìn)樣器溫度150℃。該方法分析數(shù)據(jù)重現(xiàn)性好，分析數(shù)據(jù)準(zhǔn)確，具有操作簡(jiǎn)單、方便、分析速度快、靈敏度高的特點(diǎn)，樣品中揮發(fā)性組分分離效果好。


測(cè)定藥用聚乙烯醇中甲醇溶劑殘留量 測(cè)試譜圖：




Determination of residual methanol solvent in medicinal polyvinyl alcohol
Determination of residual methanol solvent in medicinal polyvinyl alcohol. Details:

Name: Capillary Chromatographic Column

Stationary phase: 6% cyanopropyl phenyl/94% dimethyl polysiloxane
Polarity: weak to medium polarity stationary phase
Equivalent to USP stationary phase G43

Model: HH-624

Specification: 30m*0.53mm*3.0um

Application: Quality standard of polyvinyl alcohol for pharmaceutical excipients



Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. has developed a method to determine the content of volatile components in polyvinyl alcohol resins. The method uses pervaporation headspace gas chromatography to analyze. The specific steps are: 0.1g～0.5g of the substance is sealed with a 20ml headspace bottle, put into the headspace sampler, heated at 115℃～125℃ for 85 minutes～95 minutes to completely evaporate the volatile components, using gas chromatography Analyze and record the spectra of volatile components, and then use the standard regression curve method to calculate the content of volatile components; the analysis conditions are: use HH-624 chromatographic column, use FID detector, column temperature 40℃, detector temperature 200℃; The temperature of the injector is 150℃. The method has good reproducibility of analysis data, accurate and reliable analysis data, simple operation, convenient operation, fast analysis speed, high sensitivity, and good separation effect of volatile components in the sample.


Determination of residual methanol solvent in medicinal polyvinyl alcohol Test spectrum: