• haohan固定污染源排气中丙烯醛的测定岛津GC2014硬质玻璃柱gdx-502

    详细信息

     品牌:haohan  型号:gdx-502  加工定制:是  
     规格:3m*3mm  长度:3000  内径:4  
     膜厚:2.0  固定污染源排气:苯系物  丙烯醛:乙醛  
     甲醇:环氧乙烷  氯乙烯:甲酸  3%Dexil-300/Chromosorb W AW D:非甲烷总烃  
    丙烯醛的不稳定性:丙烯醛非常容易氧化,因此采样后应严格避光、低温保存,并尽快分析,以减少损失保证结果准确

    本标准适用于固定污染源有组织排放和无组织排放的丙烯醛测定。本标准的检出限为0.1mg/m3,当进样量为1ml时,定量测定的浓度范围为0.31~1.0×102mg/m3。

    《HJ/T 36-1999》标准中规定的使用GDX-502填充柱气相色谱法是测定固定污染源排气中丙烯醛的经典方法。方法的检出限、定量范围、精密度和准确度均能满足现行环境监测的要求
     
    1. 色谱分析条件

      色谱柱:GDX-502 (60-80目,3m × 4mm)
    2. 柱箱温度:140℃
    3. 检测器温度:160℃ (FID)
    4. 汽化室温度:160℃
    5. 气体流速:载气 (N₂) 60 mL/min;燃气 (H₂) 50 mL/min;助燃气 (Air) 500 mL/min
    6. 校准与定量

    7. 通常用外标法绘制校准曲线(例如0-100 mg/m³范围内至少5个浓度点)。
    8. 取1mL气体样品(或5mL5)注入色谱仪。样品浓度过高可用纯净空气或氮气稀释5。
    9. 结果计算

    10. 通过校准曲线查得或回归方程计算样品中丙烯醛的浓度。
    11. 根据采气体积、温度、压力等换算为标准状态下的浓度。

    浩瀚色谱(山东)应用技术开发有限公司,采用固定污染源中丙xi醛的测定GDX502玻璃色谱柱测定固定污染源排气中丙xi醛,面积外标法定量,在安捷伦,岛津,赛默飞,瓦里安,布鲁克,PE上安装使用,效果良好。

     

    名称:硬质玻璃柱

    规格:3m*4mm

    型号:GDX-502,60/80目

    应用:HJ/T 36-1999 固定污染源排气中丙xi醛的测定 气相色谱法

     

     

     

    适用于:

    安捷伦490在线/便携,4890,5890,6890,7820,7890,8860,8890

    岛津GC-14C,GC-2010,GC-2014,GC-2030

    赛默飞1310,1300,1610,1600

    瓦里安3800系列

    布鲁克PE580,590,680,690

    磐诺A90,福立GC9790,华爱,天瑞,天美,GC7900,川仪,北分瑞利,东西电子,鲁南瑞虹,捷岛/科晓


    Instability of Acrolein: Acrolein is very prone to oxidation, so after sampling, it should be strictly protected from light, stored at low temperatures, and analyzed as soon as possible to reduce losses and ensure accurate results
    This standard is applicable to the determination of acrolein in organized and unorganized emissions from fixed pollution sources. The detection limit of this standard is 0.1mg/m3. When the injection volume is 1ml, the concentration range for quantitative determination is 0.31-1.0 × 102mg/m3.
    The GDX-502 packed column gas chromatography method specified in the HJ/T 36-1999 standard is a classic method for determining acrolein in exhaust gas from fixed pollution sources. The detection limit, quantitative range, precision, and accuracy of the method can meet the requirements of current environmental monitoring
    Chromatographic analysis conditions:
    Chromatography column: GDX-502 (60-80 mesh, 3m × 4mm)
    Column box temperature: 140 ℃
    Detector temperature: 160 ℃ (FID)
    Vaporization chamber temperature: 160 ℃
    Gas flow rate: carrier gas (N ₂) 60 mL/min; Gas (H ₂) 50 mL/min; Gas (Air) 500 mL/min
    Calibration and Quantification:
    Usually, the calibration curve is drawn using the external standard method (for example, at least 5 concentration points within the range of 0-100 mg/m ³).
    Take 1mL of gas sample (or 5mL) and inject it into the chromatograph. If the sample concentration is too high, pure air or nitrogen can be used to dilute 5.
    Result calculation:
    Calculate the concentration of acrolein in the sample through calibration curve or regression equation.
    Convert to standard concentration based on gas production volume, temperature, pressure, etc.
    Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. uses GDX502 glass chromatography column to determine formaldehyde in exhaust gas from fixed pollution sources, and uses area external standard method for quantification. It has been installed and used on Agilent, Shimadzu, Thermo Fisher, Varian, Brooke, and PE with good results.
    Name: Hard Glass Column
    Specification: 3m * 4mm
    Model: GDX-502, 60/80 mesh
    Application: HJ/T 36-1999 Determination of Propionaldehyde in Fixed Source Exhaust Gas by Gas Chromatography
    Suitable for:
    Agilent 490 online/portable, 48905890689088608890
    Shimadzu GC-14C, GC-2010, GC-2014, GC-2030
    Thermo Fisher Scientific 1310130016101600
    Varian 3800 Series
    Brooke PE580590680690
    Panno A90, Fuli GC9790, Huaai, Tianrui, Tianmei, GC7900, Chuanyi, Beifen Ruili, Dongxi Electronics, Lunan Ruihong, Jiedao/Kexiao


     
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