摘要
建立纯水吸收-顶空-气相色谱法测定空气废气中的丙酮和丁酮的方法,通过对多参数的比对测试,选择最佳优化条件。分别用该方法和对活性炭吸附-溶剂解析-气相色谱法工作场所空气及废气有组织和无组织排放进行采样分析,结果表明:2种监测方法结果一致,相对偏差小于10%;该方法较为简便,灵敏度更高,重现性好,线性范围宽,精密度和准确度满意,尤其是避免了消耗有毒有害有机试剂。
A method of determination of acetone and methyl ethyl ketone in air using a gas chromatograph with a headspace sampler was studied,and the conditions were optimized by the comparing analysis of some parameters. Stationary sources and fugitive emission were detected using this method and active carbon adsorption-solvent resolve-gas chromatography method, separately. It was found that their analysis results were highly consistent, with a relative deviation of less than 10%.Compared with the later one, this method is more sensitive,simpler and more precise. Besides, its repeatability and linearity are much better, and toxic organic solvents can be avoided.
出处
《环境科技》
2013年第6期57-59,共3页
Environmental Science and Technology
关键词
顶空
气相色谱
丙酮
丁酮
Headspace
Gas chromatography
Acetone
Methyl ethyl ketone
