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生藥含水量的氣相色譜測(cè)定法
生藥含水量的氣相色譜測(cè)定法 詳細(xì)信息：

名稱：填充柱
規(guī)格：2m*3mm
型號(hào)：Porapak QS
應(yīng)用：生藥含水量的氣相色譜測(cè)定法

藥物中水分含量的多少直接影響藥物的質(zhì)量。為此藥典對(duì)許多生藥、合成藥或制劑規(guī)定了含水量限度。生藥含水量測(cè)定,我國(guó)藥典采用重量法(或稱干燥失重)和甲苯法(又稱共沸法)。國(guó)外藥典有關(guān)項(xiàng)下與我國(guó)藥典方法基本一致,僅在某些操作細(xì)節(jié)上略有差異。實(shí)際工作中,這兩種方法存在著取樣量大、費(fèi)時(shí)及操作繁雜等缺點(diǎn)。

滕州市浩瀚色譜儀器技術(shù)服務(wù)有限公司，，采用Porapak QS填充柱測(cè)定生藥含水量的，柱效高，分離好，結(jié)果滿意。


Gas Chromatographic Determination of Water Content in Crude Drug
Gas Chromatographic Determination of Water Content in Crude Drugs Details:

Name: Packed column
Specification: 2m*3mm
Model: Porapak QS
Application: Gas Chromatographic Determination of Water Content in Crude Drugs

The amount of moisture in the medicine directly affects the quality of the medicine. For this reason, the Pharmacopoeia stipulates water content limits for many crude drugs, synthetic drugs or preparations. To determine the water content of crude drugs, the Chinese Pharmacopoeia adopts the gravimetric method (or called loss on drying) and the toluene method (also called the azeotropic method). The relevant items of the foreign pharmacopoeia are basically the same as the methods of the Chinese pharmacopoeia, only slightly different in some operational details. In actual work, these two methods have disadvantages such as large sampling volume, time-consuming and complicated operation.

Tengzhou Haohan Chromatography Instrument Technology Service Co., Ltd. keeps pace with the times and adopts Porapak QS packed column to determine the water content of crude drugs, with high column efficiency, good separation and satisfactory results.

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