PEG-20M:KOH:Chromosorb 102玻璃柱同时测定工作场所空气中的一甲胺、二甲胺和三甲胺
PEG-20M:KOH:Chromosorb 102玻璃柱同时测定工作场所空气中的一甲胺、二甲胺和三甲胺 详细信息：
名称：玻璃柱
固定相：PEG-20M:KOH:Chromosorb 102=4:1:100
规格：2m*3mm
应用：工作场所空气有毒物质测定 第227部分：一甲胺和二甲胺
浩瀚色谱（山东）应用技术开发有限公司建立用气相色谱法同时测定工作场所空气中一甲胺、二甲胺和三甲胺的方法。保留时间定性,峰面积定量。结果结果显示,一甲胺、二甲胺和三甲胺在1~20μg/ml范围内呈线性关系,相关系数在0.999 7~0.999 8之间;检出限分别是0.013、0.006 9、0.024μg/ml;以采样体积为15 L计算一甲胺、二甲胺和三甲胺的zui低检出浓度分别为0.009 0、0.004 6、0.016 0 mg/m3;方法重现性好,其相对标准偏差为0.1%~2.4%;一甲胺、二甲胺和三甲胺的加标回收率分别为98.5%~99.1%、99.1%~99.9%、98.9%~99.7%。结论该方法快速、灵敏、准确,可同时测定共存于工作场所空气中的一甲胺、二甲胺和三甲胺。
PEG-20M:KOH:Chromosorb 102玻璃柱同时测定工作场所空气中的一甲胺、二甲胺和三甲胺 测试谱图：
Simultaneous determination of monomethylamine, dimethylamine and trimethylamine in workplace air using a PEG-20M:KOH:Cromosorb 102 glass column
PEG-20M:KOH:Chromosorb 102 glass column for simultaneous determination of monomethylamine, dimethylamine and trimethylamine in workplace air Details:
name: glass column
Stationary phase: PEG-20M:KOH:Chromosorb 102=4:1:100
Specifications: 2m*3mm
Application: Determination of Toxic Substances in Workplace Air Part 227: Monomethylamine and Dimethylamine
Haohan Chromatography (Shandong) Application Technology Development Co., Ltd. established a method for the simultaneous determination of monomethylamine, dimethylamine and trimethylamine in workplace air by gas chromatography. Retention time qualitative, peak area quantitative. Results The results showed that monomethylamine, dimethylamine and trimethylamine showed a linear relationship in the range of 1-20 μg/ml, and the correlation coefficient was between 0.999 7 and 0.999 8; the detection limits were 0.013, 0.006 9, and 0.024 μg/ml, respectively. ml; with a sampling volume of 15 L, the minimum detectable concentrations of monomethylamine, dimethylamine and trimethylamine were calculated to be 0.009 0, 0.004 6, and 0.016 0 mg/m3, respectively; the method was reproducible, and its relative standard deviation was 0.1%~2.4%; the recovery rates of monomethylamine, dimethylamine and trimethylamine were 98.5%~99.1%, 99.1%~99.9%, 98.9%~99.7%, respectively. Conclusion The method is rapid, sensitive and accurate, and can simultaneously determine monomethylamine, dimethylamine and trimethylamine coexisting in the air of the workplace.
Simultaneous determination of monomethylamine, dimethylamine and trimethylamine in workplace air with a PEG-20M:KOH:Cromosorb 102 glass column Test chromatogram: