| 被动式DTA监测器的研制 |
| 摘要点击 509 全文点击 1001 投稿时间：1997-06-13 |
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| 中文关键词 被动式监测器 联苯-联苯醚 累积浓度 吸收量 |
| 英文关键词 passive dosimeter DTA accumulative concentrations absorbed amount |
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| 中文摘要 |
| 被动式联苯-联苯醚(DTA)监测器以酸及硝化混合液处理过的玻璃棉为吸收介质,被动式吸收气体中DTA;并通过乙醚-丙酮比色,测定监测器所采集到的DTA量；根据累积浓度与对应的采样量,建立它们之间的关系。所研究的监测器能准确测定1.5-21mg·h/m3的DTA,重复性好,变异系数小于12%;且操作简单,具有良好的采样效率,变异系数小于5.5%,平均采样速度为141.17ml/min. |
| 英文摘要 |
| A passive personal diphenyl-diphenylether (DTA) dosimeter has been developed for determination of DTA in ambient air.The dosimeter consists of a capped glass tube packed with glass wool treated with nitrify mixture.The absorbed DTA was analyzed by ether-acetone colorimetric method and connected linear character of passive personal DTA dosimeter.The results indicated that the dosimeter is suitable over a range of DTA concentrations from 1.5 mg·h/m3 to 21 mg·h/m3.The reproducibility is good with a relative standard deviation of less than 12%.A sampling rate of 141.17 ml/min has been obtained and its relative standard deviation is less than 5.5%. |
