PEG-20M毛细管柱 空气中有机硫化物成分的测定

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空气中有机硫化物成分的测定
空气中有机硫化物成分的测定  详细信息：

名称：毛细管柱

固定相：聚乙二醇

规格：30m*0.25mm*0.25um

型号：PEG-20M

恶臭是指所有刺激人体嗅觉器官、引起不愉快以及损坏生活环境的气体物质。其中有机硫化合物是造成环境恶臭污染的主要原因之一,含硫气体包括二硫化碳、硫醚、硫醇、硫化氢、噻吩、乙硫醇、甲乙硫醚、乙硫醚等有机硫化合物,由于其嗅觉阈值较低，对人体生理系统造成明显不适，并且毒性大对人体健康造成严重危害而极受关注。目前对恶臭检测常用的是三点比较式臭袋法，靠人工嗅辨，误差较大，而且无法定性。

有机硫化物存在极性强，化学稳定性差，具有容易吸附和反应的特点，造成普通的检测方法难以检测。目前，国标（gb/t14678-1993）研究了硫化氢、甲硫醇、甲硫醚和二甲二硫等四种有机硫化物成分的测定。其原理为低温浓缩并用气相色谱法分析，但该方法需要专门的浓缩装置，采用液氧浓缩，有一定的危险性，且分析方法中没有考虑到样品中的水蒸气影响，采样步骤繁琐，导致检测结果的稳定性差，所以目前应用范围不广，很难进行批量分析。

浩瀚色谱（山东）应用技术开发有限公司能够应对有机硫化物极强的活性及不稳定的特点，同时操作简单，实现快速有效的检测，适用于对空气中有机硫化物的批量分析。

空气中有机硫化物成分的测定   测试谱图：


Determination of organic sulfur compounds in air
Determination of Organosulfur Compounds in Air Details:

Name: capillary column

Stationary Phase: Polyethylene Glycol

Specifications: 30m*0.25mm*0.25um

Model: PEG-20M



Odor refers to all gaseous substances that stimulate the human olfactory organs, cause unpleasantness and damage the living environment. Among them, organic sulfur compounds are one of the main causes of environmental odor pollution. Sulfur-containing gases include carbon disulfide, sulfide, mercaptan, hydrogen sulfide, thiophene, ethanethiol, methyl ethyl sulfide, ethyl sulfide and other organic sulfur compounds. The olfactory threshold is low, which causes obvious discomfort to the human physiological system, and the toxicity is very serious and causes serious harm to human health, which has attracted great attention. At present, the most commonly used method for odor detection is the three-point comparison odor bag method, which relies on artificial smell and has a large error and cannot be qualitative.

Organic sulfides have strong polarity, poor chemical stability, and are easy to adsorb and react, making it difficult to detect by common detection methods. At present, the national standard (gb/t14678-1993) has studied the determination of four kinds of organic sulfides such as hydrogen sulfide, methyl mercaptan, methyl sulfide and dimethyl disulfide. The principle is low temperature concentration and gas chromatography analysis, but this method requires a special concentration device, using liquid oxygen concentration, which has certain risks, and the analysis method does not consider the influence of water vapor in the sample, and the sampling steps are cumbersome, resulting in The stability of the test results is poor, so the current application range is not wide, and it is difficult to carry out batch analysis.



Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. can cope with the extremely strong activity and instability of organic sulfides, and at the same time, it is easy to operate and realize fast and effective detection. It is suitable for batch analysis of organic sulfides in the air.

Determination of organic sulfur compounds in air Test spectrum: