角鲨烷/吐温80/101填充柱 车间空气中环氧乙烷的直接进样测定

车间空气中环氧乙烷的直接进样测定，液化石油气，二甲醚，甲缩醛，乙缩醛，乙醇，室内空气，焦炉煤气，炼厂气，天然气，变压器油，多氯联苯，植物油，增塑剂，过氧化物，三甲胺

车间空气中环氧乙烷的直接进样测定
车间空气中环氧乙烷的直接进样测定 详细信息：

名称：填充柱
规格：2m*4mm（内径）不锈钢
固定相：角鲨烷：吐温80：硅烷化101=10:0.5:100
应用：GBT 16074-1995 车间空气中环氧乙烷的直接进样气相色谱测定方法

浩瀚色谱（山东）应用技术开发有限公司用气相色谱法对空气中环氧乙烷进行了测定。采用徽章式扩散型被动式采样器采集了车间空气中的环氧乙烷,采集到的环氧乙烷在采样器中转化生成稳定的2-溴乙醇,再用二氯甲烷-甲醇(10+90)溶液进行萃取,分取此溶液1.0μL直接进样进行气相色谱分析,根据测定溶液中2-溴乙醇的量来确定空气中环氧乙烷的含量。环氧乙烷的质量浓度在2.8~33.6 mg.L-1范围内与峰面积呈线性关系,方法的检出限(3S/N)为0.38 mg.L-1。方法的回收率在81.8%~92.3%之间,相对标准偏差(n=6)均小于5%。

车间空气中环氧乙烷的直接进样测定  测试谱图：




Direct injection determination of ethylene oxide in the air of workshop
Direct injection determination of ethylene oxide in the air of workshop Details:

Name: Packed column
Specification: 2m*4mm (inner diameter) stainless steel
Stationary phase: Squalane: Tween 80: Silylation 101=10:0.5:100
Application: GBT 16074-1995 Direct injection gas chromatographic method for determination of ethylene oxide in the air of workplace

Haohan Chromatography (Shandong) Applied Technology Development Co., Ltd. used gas chromatography to determine ethylene oxide in the air. The badge-type diffusion passive sampler is used to collect the ethylene oxide in the air of the workshop, and the collected ethylene oxide is converted into stable 2-bromoethanol in the sampler, and then dichloromethane-methanol (10+90 ) The solution is extracted, and 1.0 μL of this solution is directly injected for gas chromatography analysis. The content of ethylene oxide in the air is determined according to the amount of 2-bromoethanol in the measured solution. The mass concentration of ethylene oxide has a linear relationship with the peak area in the range of 2.8-33.6 mg.L-1, and the detection limit (3S/N) of the method is 0.38 mg.L-1. The recoveries of the method ranged from 81.8% to 92.3%, and the relative standard deviations (n=6) were all less than 5%.

Direct injection measurement of ethylene oxide in the air of the workshop Test spectrum: