固定污染源中氯乙烯和丙烯醛的同时测定依据生态环境部发布的国家生态环境标准 ‌HJ □□□□—202□‌《固定污染源废气 氯乙烯和丙烯醛的测定 气相色谱法》（征求意见稿），该标准整合并修订了原 ‌HJ/T 34-1999‌ 和 ‌HJ/T 36-1999‌，适用于固定污染源有组织排放废气及无组织排放监控点空气中氯乙烯和丙烯醛的测定。‌
‌方法原理与适用范围：‌ 该方法基于气相色谱法进行测定，通过色谱柱分离氯乙烯和丙烯醛后，使用检测器（如火焰离子化检测器）进行定量分析；标准名称已更新，适用范围扩展至同时涵盖两种化合物的测定。‌
‌关键方法参数：‌ 当进样体积为 ‌1.0 ml‌ 时，氯乙烯和丙烯醛的方法检出限分别为 ‌0.07 mg/m³‌ 和 ‌0.08 mg/m³‌，测定下限分别为 ‌0.28 mg/m³‌ 和 ‌0.32 mg/m³‌，标准还完善了试剂（如使用高压钢瓶保存的标准气体）、仪器（如具备加热功能的采样管）及采样方法（新增气袋采样），并强化了质量保证和质量控制要求。‌
‌干扰与消除：‌ 复杂基质样品中可能存在的干扰可通过选择极性不同的色谱柱或采用气相色谱/质谱联用（GC/MS）进行定性确认来消除。‌

‌操作注意事项：‌ 实验中使用的标准物质为易挥发有毒化学品，需在通风条件下操作并佩戴防护器具，避免吸入；标准实施后，原 ‌HJ/T 34-1999‌ 和 ‌HJ/T 36-1999‌ 同时废止，实际应用需以正式发布版本为准。‌

 

浩瀚色谱(山东)应用技术开发有限公司，针对固定污染源排气中氯乙烯和丙烯醛进行测定,建立采用针筒采样、手动进样、HH-WAX毛细管柱分离、FID检测器进行检测的方法。通过毛细管柱分离的目标化合物峰形对称、分离度好,与其它干扰的化合物有较好的分离。氯乙烯和丙烯醛检出限为0.138 mg/m^3和0.128 mg/m^3,满足固定污染源排气监测要求,并在1-220 mg/m^3范围内可以进行准确测定。对配制标气和用空气模拟的实际样品的测定,RSD均在8%以内。通过保存时间对浓度影响的研究,推荐采样24 h完成分析。

名称：毛细管柱
固定相：聚乙二醇
规格：30m*0.32mm*1um

型号：PEG-20M

zui高温度：250°C

应用：固定污染源废气 氯乙烯和丙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

 

The simultaneous determination of vinyl chloride and acrolein in fixed pollution sources is based on the national ecological environment standard HJ □□□□ -202 □ "Determination of vinyl chloride and acrolein in fixed pollution source exhaust gas by gas chromatography" (draft for comments) issued by the Ministry of Ecology and Environment. This standard integrates and revises the original HJ/T 34-1999 and HJ/T 36-1999, and is applicable to the determination of vinyl chloride and acrolein in the air of organized and unorganized emission monitoring points of fixed pollution sources. ‌
Method principle and scope of application: This method is based on gas chromatography for determination. After separating vinyl chloride and acrolein through a chromatographic column, quantitative analysis is performed using a detector (such as a flame ionization detector); The standard name has been updated and the scope of application has been expanded to cover the determination of two compounds simultaneously. ‌
Key method parameters: When the injection volume is 1.0 ml, the detection limits of vinyl chloride and acrolein are 0.07 mg/m ³ and 0.08 mg/m ³, respectively, and the lower limits of determination are 0.28 mg/m ³ and 0.32 mg/m ³, respectively. The standard also improves the reagents (such as standard gas stored in high-pressure steel cylinders), instruments (such as sampling tubes with heating function), and sampling methods (adding gas bag sampling), and strengthens quality assurance and quality control requirements. ‌
Interference and elimination: Possible interference in complex matrix samples can be eliminated by selecting chromatography columns with different polarities or by qualitative confirmation using gas chromatography/mass spectrometry (GC/MS). ‌
one
Precautions for operation: The standard substance used in the experiment is a volatile toxic chemical. It should be operated under ventilated conditions and protective equipment should be worn to avoid inhalation; After the implementation of the standard, the original HJ/T 34-1999 and HJ/T 36-1999 will be abolished simultaneously, and the actual application shall be subject to the officially released version. ‌