带堵头北分5%Carbowax 20M Carbopack B填充柱 顶空气相色谱法测定大气污染物中甲醇含量

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顶空气相色谱法测定大气污染物中甲醇含量
顶空气相色谱法测定大气污染物中甲醇含量 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

甲醇是一种重要的有机化工原料,也是清洁代用燃料,在化工、医药、轻工、纺织等行业具有广泛的用途。甲醇毒性较大,可经呼吸道、皮肤、消化道进入体内。甲醇在体内氧化缓慢,又明显有蓄积作用,长期吸入低浓度甲醇可发生慢性中毒。

浩瀚色谱（山东）应用技术开发有限公司采用顶空-5%Carbowax 20M Carbopack B填充柱气相色谱技术建立了测定气体样品中甲醇的分析方法.该方法具有灵敏度高,检出限低,线性范围宽和操作简便等特点.利用正交设计法研究了顶空实验条件,优化了顶空炉箱温度和加热平衡时间.实验结果表明,甲醇浓度在0.16～7.92mg/L范围内线性关系良好,相对标准偏差为508%～6.74%,加标回收率在94.5%～102%.建立方法的检出限为0.04mg/L;当采样体积为20L时,方法的低检出限为0.01mg/m3.该方法能够满足污染源及无组织排放的气体样品中甲醇的监测需求.

顶空气相色谱法测定大气污染物中甲醇含量   测试谱图：




Determination of Methanol in Air Pollutants by Headspace Gas Chromatography
Determination of Methanol in Air Pollutants by Headspace Gas Chromatography 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



Methanol is an important organic chemical raw material and a clean alternative fuel. It has a wide range of uses in chemical, pharmaceutical, light industry, textile and other industries. Methanol is highly toxic and can enter the body through the respiratory tract, skin and digestive tract. Methanol is slowly oxidized in the body and has obvious accumulation effect. Chronic poisoning can occur after long-term inhalation of low-concentration methanol.

Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. used headspace-5% Carbowax 20M Carbopack B packed column gas chromatography to establish an analytical method for the determination of methanol in gas samples. The method has high sensitivity, low detection limit and wide linear range. The headspace experiment conditions were studied by the orthogonal design method, and the temperature of the headspace furnace and the heating equilibrium time were optimized. The standard deviation is 508%～6.74%, and the recovery rate of standard addition is 94.5%～102%. The detection limit of the established method is 0.04mg/L; when the sampling volume is 20L, the minimum detection limit of the method is 0.01mg/m3 This method can meet the monitoring requirements of methanol in gas samples from pollution sources and fugitive emissions.

Determination of methanol content in air pollutants by headspace gas chromatography Test spectrum: