甲醇汽车尾气排放中未燃甲醇含量的测定填充柱5%Carbowax 20M Carbopack B
甲醇汽车尾气排放中未燃甲醇含量的测定填充柱5%Carbowax 20M Carbopack B 详细信息：
名称：填充柱
色谱固定液：5%聚乙二醇
载体：石墨炭黑80-120目
规格：2m*3mm，2m*1/8
型号：5%Carbowax 20M Carbopack B
应用： HJ T33-1999 固定污染源排气中甲醇的测定气相色谱法
浩瀚色谱（山东）应用技术开发有限公司建立了一种利用顶空-气相色谱-质谱联用法测定甲醇汽车尾气排放中未燃甲醇含量的检测方法,采用硅胶采样管吸附甲醇汽车尾气排放中的甲醇,再用水将硅胶采样管中的甲醇洗脱,洗脱液用顶空气相色谱质谱仪测定。此方法的zui低检出限是0.035μg/m L,线性范围为0.1μg/mL-40μg/m L,加标回收率在98%-101%。结果表明,此方法简单灵敏,线性范围宽,检出限低,精密度好,经实际样品测定,完全满足甲醇汽车尾气排放中未燃甲醇含量的测定。
甲醇汽车尾气排放中未燃甲醇含量的测定填充柱5%Carbowax 20M Carbopack B 测试谱图：
Determination of unburned methanol content in methanol vehicle exhaust emissions Packed column 5% Carbowax 20M Carbopack B
Determination of unburned methanol content in methanol vehicle exhaust Packed column 5% Carbowax 20M Carbopack B Details:
Name: Packed Column
Chromatographic fixative: 5% polyethylene glycol
Carrier: graphite carbon black 80-120 mesh
Specifications: 2m*3mm, 2m*1/8
Model: 5%Carbowax 20M Carbopack B
Application: HJ T33-1999 Determination of methanol in exhaust gas from stationary pollution sources by gas chromatography
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has established a detection method for the determination of unburned methanol content in methanol vehicle exhaust emissions by headspace-gas chromatography-mass spectrometry, using silica gel sampling tubes to adsorb methanol in methanol vehicle exhaust emissions. , and then the methanol in the silica gel sampling tube was eluted with water, and the eluate was determined by headspace gas chromatography-mass spectrometer. The minimum detection limit of this method was 0.035 μg/mL, the linear range was 0.1 μg/mL-40 μg/mL, and the recovery rate was 98%-101%. The results show that the method is simple and sensitive, has a wide linear range, low detection limit and good precision. It can fully meet the determination of unburned methanol content in methanol vehicle exhaust emissions after the actual sample determination.
Determination of unburned methanol content in methanol vehicle exhaust emissions Packed column 5% Carbowax 20M Carbopack B test spectrum: