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| 气相色谱法测定空气中三氯乙烯和四氯乙烯 |
| To Determine Trichloroethylene and Tetrachloroethylenein Air by Gas Chromatography |
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| DOI： |
| 中文关键词: 气相色谱 空气 三氯乙烯 四氯乙烯 |
| 英文关键词: Gaschromatography Air Trichloroethylene Tetrachloroethylene |
| 基金项目: |
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| 摘要点击次数: 1346 |
| 全文下载次数: 1336 |
| 中文摘要: |
| 应用气相色谱法以5% PEG- 6000 为固定液、6201为担体填充柱分离, 电子捕获检测器检测, 直接进样测定环境空气中三氯乙烯和四氯乙烯。对0. 029 mg/ m 3 三氯乙烯和 0. 056 mg/ m 3 四氯乙烯标准样作重复5次测定, 其相对标准差分别为5.7 % 和1.5 %, 并在实际样品中进行加标回收试验, 回收率三氯乙烯在90% ~ 110% 、四氯乙烯在94% ~ 108%之间。检测限分别为0.006 mg/ m 3 和0. 000 5 mg/m 3 , 完全能满足环境空气监测的需 |
| 英文摘要: |
| Trichloroethylene andtetrachloroethylenein environmentalair w ere determined directly by gaschromatography, withtaking 5% PEG- 6000 asfixedliquid and 6201ascarrier,thentoisolatebystuffingcolumn andto detectby electroncapture detector. T hestandardsamplesof0.029 mg/ m 3 trichloroethylene and 0.056 mg/m 3 tetrachloroethylene weretitrated fivetimes repeatedly. Theirrelativestandard deviations were 5.7% and 1.5% respectively.Insampling analysisforthe practicalsamples, therecoveryrateoftrichloroethylenewas90% ~ 110%,tetrachloroethylenew as94% ~ 108%.Theirdetectionlimitsw ere0. 006 mg/ m 3 and 0.000 5 mg/ m 3 , w eresuitableforthe needofenvironmentalair . s monitoring. |
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