方法依据
依据《固定污染源排气中乙醛的测定 气相色谱法HJ/T 35-1999》。
2.方法原理
用亚硫酸氢钠溶液采样，乙醛与亚硫酸氢钠发生亲核加成反应，在中性溶液中生成稳定的a- 羟基磺 酸盐，然后在稀碱溶液中共热释放出乙醛，经色谱柱分离，用氢火焰离子化检测器测定，以标准样品色 谱峰的保留时间定性，峰高定量。



名称：岛津填充柱
规格：2m*3*4mm，80-100目
型号：20%pEG20M/GCS880 AW DMCS

zui高温度：240°C

应用：HJ-T 35-1999 固定污染源排气中乙醛的测定 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

 

本标准适用于固定污染源有组织排放和无组织排放的乙醛测定。

当采样条件为100L，进样条件为1μl时，乙醛的检出限为4×10-2mg/m3，乙醛的定量测定浓度范围为0.14mg/m3～30mg/m3

 

浩瀚色谱（山东）应用技术开发有限公司，研制的《固定污染源排气中乙醛的测定岛津色谱柱》，柱效高，分离好，甲醇，乙醇，丙酮均不干扰，分离良好，峰型对称，结果满意。
 

Method basis
According to the Gas Chromatography Method HJ/T 35-1999 for the Determination of Acetaldehyde in Exhaust Gas from Fixed Pollution Sources.
2. Method principle
Sampling with sodium bisulfite solution, acetaldehyde undergoes nucleophilic addition reaction with sodium bisulfite to generate stable alpha hydroxysulfonate in neutral solution. Then, acetaldehyde is released by co heating in dilute alkaline solution, separated by chromatographic column, and determined by hydrogen flame ionization detector. The retention time of the standard sample chromatographic peak is qualitative, and the peak height is quantitative.
Name: Shimadzu Fill Column
Specification: 2m * 3 * 4mm, 80-100 mesh
Model: 20% pEG20M/GCS880 AW DMCS
Zui high temperature: 240 ° C
Application: HJ-T 35-1999 Determination of Acetaldehyde in Fixed Source Exhaust Gas by Gas Chromatography
Applicable to:
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
This standard is applicable to the determination of acetaldehyde in organized and unorganized emissions from fixed pollution sources.
When the sampling condition is 100L and the injection condition is 1 μ l, the detection limit of acetaldehyde is 4 × 10-2mg/m3, and the quantitative determination concentration range of acetaldehyde is 0.14mg/m3 to 30mg/m3
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. has developed a Shimadzu chromatography column for the determination of acetaldehyde in exhaust gas from fixed pollution sources. The column has high column efficiency, good separation, no interference from methanol, ethanol, and acetone, good separation, symmetrical peak shapes, and satisfactory results.