氣相色譜法測定工作場所空氣中甲醇，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，變壓器油，多氯聯(lián)苯，植物油，增塑劑，塑化劑，消毒劑，氨水，氨氣

氣相色譜法測定工作場所空氣中甲醇
氣相色譜法測定工作場所空氣中甲醇 詳細信息：

名稱：填充柱

色譜固定液：5%聚乙二醇
載體：石墨炭黑80-120目

規(guī)格：2m*3mm，2m*1/8

型號：5%Carbowax 20M Carbopack B

應用： HJ T33-1999 固定污染源排氣中甲醇的測定氣相色譜法

浩瀚色譜（山東）應用技術(shù)開發(fā)有限公司建立頂空-氣相色譜技術(shù)測定工作場所空氣中甲醇的檢測方法。方法采用GH-1型溶劑解吸型硅膠管采樣,頂空法進樣,裝有氫火焰離子化檢測器FID的氣相色譜檢測,測定該方法的線性范圍、平均值、標準偏差、相對標準偏差和回收率。結(jié)果該方法的甲醇質(zhì)量濃度在140.0 mg/L以內(nèi)呈線性,線性回歸方程y=0.073589x-0.13717,該方法檢出限為0.08 mg/L,線性范圍為0.08~140 mg/L。其加標回收率為94.5%~105.2%,相對標準偏差為1.45%~5.89%。結(jié)論該方法靈敏、操作簡便、可實現(xiàn)測定過程的簡便化、且準確度高,可以滿足工作場所空氣中甲醇檢測方法的要求。

氣相色譜法測定工作場所空氣中甲醇  測試譜圖：




Determination of Methanol in the Air of Workplace by Gas Chromatography
Gas Chromatography Determination of Methanol in the Air of Workplace Details:

Name: Packed column

Chromatographic stationary liquid: 5% polyethylene glycol
Carrier: Graphite carbon black 80-120 mesh

Specification: 2m*3mm, 2m*1/8

Model: 5% Carbowax 20M Carbopack B

Application: HJ T33-1999 Determination of Methanol in Exhaust from Stationary Pollution Sources Gas Chromatography



Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. established a headspace-gas chromatography technology to determine the detection method of methanol in the air in the workplace. Method GH-1 solvent desorption type silica gel tube was used for sampling, headspace method for sampling, gas chromatographic detection equipped with hydrogen flame ionization detector FID, and the linear range, average value, standard deviation, relative standard deviation and relative standard deviation of the method were determined. Recovery rate. Results The methanol mass concentration of this method was linear within 140.0 mg/L, the linear regression equation y=0.073589x-0.13717, the detection limit of this method was 0.08 mg/L, and the linear range was 0.08~140 mg/L. The recovery rate of standard addition is 94.5%~105.2%, and the relative standard deviation is 1.45%~5.89%. Conclusion The method is sensitive, easy to operate, can realize the simplification of the determination process, and has high accuracy, which can meet the requirements of the method for detecting methanol in the air in the workplace.

Gas Chromatography Method for Determination of Methanol in Workplace Air Test Spectra: