407有机担体 填充柱测定固定污染源排气中乙醛

名称：填充柱

固定相：有机担体

粒度：80-100目，60-80目

规格：2m*4mm,2m*3mm ,2m*1*8,  3m*3mm

型号：407有机担体 ，GDX-407
应用:  HJT 35-1999 固定污染源排气中乙醛的测定 气相色谱法

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。

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α-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。

填充柱测定固定污染源排气中乙醛 测试谱图:




Packed column fixed acetaldehyde in exhaust of pollution source
Packed column fixed acetaldehyde in exhaust of pollution source Details:

Name: Packed column

Stationary phase: organic support

Particle size: 80-100 mesh, 60-80 mesh

Specifications: 2m * 4mm, 2m * 3mm, 2m * 1 * 8, 3m * 3mm

Model: 407 organic support, GDX-407
Application: HJT 35-1999 Determination of acetaldehyde in exhaust gas from stationary pollution sources Gas chromatography

This standard applies to the determination of acetaldehyde from organized and unorganized emissions from stationary sources.

Principle of the method: Sampling with sodium bisulfite solution, nucleophilic addition reaction between acetaldehyde and sodium bisulfite produces stable α-hydroxysulfonate in neutral solution, and then releases acetone by co-heating in dilute alkaline solution Aldehydes are separated by chromatographic column and measured by hydrogen flame ionization detector. The retention time of the chromatographic peak of the standard sample is qualitative and the peak height is quantified.

Test spectrum of acetaldehyde in the exhaust of a fixed column fixed pollution source: