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    现在位置首页>实验耗材配件>色谱柱>色谱柱>5%Carbowax 20M Carbopack B填充柱顶空-气相色谱法测定空气中甲醇
    5%Carbowax 20M Carbopack B填充柱顶空-气相色谱法测定空气中甲醇
    5%Carbowax 20M Carbopack B填充柱顶空-气相色谱法测定空气中甲醇
    • 5%Carbowax 20M Carbopack B填充柱顶空-气相色谱法测定空气中甲醇

    5%Carbowax 20M Carbopack B填充柱顶空-气相色谱法测定空气中甲醇

    产品报价:询价

    更新时间:2021/12/24 8:03:20

    地:山东

    牌:浩瀚色谱

    号:5%Carbowax 20M

    厂商性质: 生产型,贸易型,服务型,

    公司名称: 浩瀚色谱(山东)应用技术开发有限公司

    产品关键词: 固定污染源废气   碳氢化合物   非甲烷总烃   液化石油气   甲醇  

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    5%Carbowax 20M Carbopack B填充柱顶空-气相色谱法测定空气中甲醇

    5%Carbowax 20M Carbopack B填充柱顶空-气相色谱法测定空气中甲醇 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提出了顶空-气相色谱法测定空气中甲醇的方法.选择顶空平衡温度和时间分别为75℃和60 min,顶空瓶中样品定容体积为2 mL,用5%Carbowax 20M Carbopack B色谱柱分离,火焰离子化检测器检测.甲醇的质量浓度在91.20 mg·L-1以内与其峰面积呈线性关系,检出限(3s)为1.8 mg·L-1.在11.40,22.80,45.60 mg·L-1 3个浓度水平进行加标回收试验,测定值的相对标准偏差(n=6)在2.6%~3.4%之间,方法解吸率在96.5%~98.2%之间. 


    5%Carbowax 20M Carbopack B填充柱顶空-气相色谱法测定空气中甲醇  测试谱图:



    5% Carbowax 20M Carbopack B Packed Column Headspace-Gas Chromatography Method for Determination of Methanol in Air


    5% Carbowax 20M Carbopack B Packed Column Headspace-Gas Chromatography Method for Determination of Methanol in Air 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. proposed a headspace-gas chromatography method for the determination of methanol in the air. The headspace equilibrium temperature and time were selected to be 75℃ and 60 min, respectively, and the constant volume of the sample in the headspace bottle was 2 mL, separated by 5% Carbowax 20M Carbopack B chromatographic column, and detected by flame ionization detector. The mass concentration of methanol is within 91.20 mg·L-1 and its peak area is linear, and the detection limit (3s) is 1.8 mg· L-1. The standard recovery test was carried out at 3 concentration levels of 11.40, 22.80, 45.60 mg·L-1, the relative standard deviation of the measured value (n=6) was between 2.6% and 3.4%, and the method desorption rate was 96.5 %~98.2%.



    5% Carbowax 20M Carbopack B packed column headspace-gas chromatography for the determination of methanol in the air Test spectrum: