5%Carbowax 20M Carbopack B填充柱 空氣中甲醇的填充柱氣相色譜法測(cè)定

，2m*1/8

型號(hào)：5%Carbowax 20M Carbopack B

應(yīng)用： HJ T33-1999 固定污染源排氣中甲醇的測(cè)定氣相色譜法 

浩瀚色譜（山東）應(yīng)用技術(shù)開發(fā)有限公司探討硅膠管吸附一填充柱氣相色譜法測(cè)定工作場(chǎng)所空氣中甲醇的檢測(cè)方法.工作場(chǎng)所中甲醇用硅膠管采集,水解吸后,經(jīng)5%Carbowax 20M Carbopack B色譜柱分離,氫火焰離子化檢測(cè)器(FID)檢測(cè),以保留時(shí)間定性,峰面積定量.結(jié)果顯示可以使甲醇和乙醇完全分離,線性相關(guān)系數(shù)大于0.999,精密度RSD范圍1.84～4.60%,加標(biāo)回收率90—110%,并用氣相色譜質(zhì)譜確認(rèn).結(jié)論該方法能有效分離甲醇乙醇,準(zhǔn)確測(cè)定空氣中的甲醇,適合現(xiàn)場(chǎng)空氣中甲醇的測(cè)定.

空氣中甲醇的填充柱氣相色譜法測(cè)定  測(cè)試譜圖：



Determination of Methanol in Air by Gas Chromatography with Packed Column
Determination of Methanol in the Air by Gas Chromatography with Packed Column 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) Application Technology Development Co., Ltd. is discussing the detection method of silica gel tube adsorption-packed column gas chromatography for the determination of methanol in the workplace air. The methanol in the workplace is collected with a silica gel tube, and after hydrolysis and adsorption, it is subjected to 5% Carbowax 20M Carbopack B Chromatographic column separation, hydrogen flame ionization detector (FID) detection, qualitative retention time, peak area quantification. The results show that methanol and ethanol can be completely separated, the linear correlation coefficient is greater than 0.999, the precision RSD range is 1.84-4.60%, plus The standard recovery rate is 90-110%, and confirmed by gas chromatography mass spectrometry. Conclusion This method can effectively separate methanol and ethanol, accurately determine methanol in the air, and is suitable for the determination of methanol in the air on site.

Determination of methanol in air by packed column gas chromatography. Test spectrum: