| 有机硫恶臭物质采样和分析检测技术研究 |
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| 引用本文： | 王继宗,王立,胡玢. 有机硫恶臭物质采样和分析检测技术研究[J]. 环境科学, 1993, 14(5): 27-31 |
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| 作者姓名： | 王继宗 王立 胡玢 |
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| 作者单位： | 北京市劳动保护科学研究所，北京市劳动保护科学研究所，北京市劳动保护科学研究所 北京 100054，北京 100054，北京 100054 |
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| 摘 要： | 本研究以二甲二硫醚和甲硫醇为代表对有机硫恶臭物质的采样浓缩，热解析和ＧＣ，ＧＣ／ＭＳ的色谱分离，定性鉴定和定量检测方法进行了实验技术研究。与此同时研制开发了恶臭污染监测的系列配套装置－采样管，微型采样泵，热解析色谱进行装置和标准气体物质发生装置。经筛选确认，国产ＧＤＸＥ１０５采样管可对ＤＭＤＳ和ＣＨ３ＳＨ实现直接常温采样浓缩，样品回收率分别为１００％和６０％。ＧＣ／ＦＰＤ对二种硫化物的检出下限分别
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| 关 键 词： | 在机硫 采样 恶臭物质 定量监测法 |
| 收稿时间： | 1993-06-09 |
The Studies of sampling and determining malordors of organic sulfur compounds |
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| Wang Jizong. The Studies of sampling and determining malordors of organic sulfur compounds[J]. Chinese Journal of Environmental Science, 1993, 14(5): 27-31 |
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| Authors: | Wang Jizong |
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| Affiliation: | Beijing Municipal Institute of Labour protection, Beijing 100054;Beijing Municipal Institute of Labour protection, Beijing 100054;Beijing Municipal Institute of Labour protection, Beijing 100054 |
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| Abstract: | Complex techniques of sampling and determing main mal-ordors have been developed in this paper.Sampling on solid adsorbents followed by thermodesorption and GC/FPD and /or GC/MS was evaluated as a method for the quantitative analysis of CH3SH and (CH3)2S2 in air.Some apparatuses-Adsorbent Sampling Tube, Constant-flow sampling Pump, Thermodesorption Device and Gas Mixer for the preparation of calibration gas mixtures were developed and produced.The experimental results showed that the chinese-made GDX-105 was found suitable for adsorption and collection of CH3SH and (CH3)2S2 at the room temperature.The method affords recoveries between 60% and 100%.The limits of detection were 0.3 and 0.2 ng for CH3SH and (CH3)2S2.An accuracy of ±3% was obtained for the standard gases of CH3SH and (CH3)2S2 in the air or N2. |
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| Keywords: | malordor organic sulfur sampling GC GC/ MS. |
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