电磁感应加热技术在水体重金属快速石墨富集中的应用

大气与环境光学学报 ›› 2015, Vol. 10 ›› Issue (1): 69-75.

电磁感应加热技术在水体重金属快速石墨富集中的应用

张大海1, 赵南京*1, 殷高方1, 马明俊1, 胡丽1,2, 石朝毅1, 董欣欣1, 王寅1, 余洋1, 孟德硕1, 余晓娅1, 王久悦1, 杨瑞芳1

(1 中国科学院安徽光学精密机械研究所中国科学院环境光学与技术重点实验室，合肥 230031；
2 合肥学院建筑工程系，合肥 230022)

收稿日期:2014-03-27 修回日期:2014-04-21 出版日期:2015-01-28 发布日期:2015-01-09
通讯作者: 张大海（1987-），男，山东德州人，研究生，主要从事LIBS水体重金属在线连续监测仪控制研究。 E-mail:dhzhang@aiofm.ac.cn
作者简介:张大海（1987-），男，山东德州人，研究生，主要从事LIBS水体重金属在线连续监测仪控制研究。

Application of Electromagnetic Induction Heating Technology in Rapid Drying of Graphite Enrichment of Heavy Metal in Water

ZHANG Da-hai1, ZHAO Nan-jing1*, YIN Gao-fang1, MA Ming-jun1, HU Li1,2, SHI Chao-yi1, DONG Xin-xin1, WANG Yin1, YU Yang1, MENG De-shuo1, YU Xiao-ya1, WANG Jiu-yue1, YANG Rui-fang1

(1 Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China； 2 Department of Architectural Engineering, Hefei University, Hefei 230022, China)

Received:2014-03-27 Revised:2014-04-21 Published:2015-01-28 Online:2015-01-09

摘要/Abstract

摘要：

针对激光诱导击穿光谱技术用于水体重金属连续、自动、快速、高灵敏监测中的需求，以石墨为富集基体，采用电磁感应加热技术实现了样品的快速加热与富集，并研究了基于降温斜率的烘干判断方法。实验中以设定140℃判定定时2 s为例，测得从室温上升到140℃用时30 s，温度的误差范围为-5~+3℃，基于降温斜率准确判断了富集完成状态。研究结果表明，采用电磁感应加热技术结合基于降温斜率的富集完成判断方法可以有效实现被测样品的快速加热和准确烘干判断。

关键词: 激光诱导击穿光谱技术, 石墨富集, 电磁感应加热, 降温斜率, 烘干判断

Abstract:

For continuous automatic, fast and high sensitive analysis of heavy metal in water by laser-induced breakdown spectroscopy technique (LIBS), the sample solution was enriched onto graphite sheet and heated by electromagnetic induction heating technology. Finally, the rapid heating and enrichment of the sample was achieved. In addition, the dry judgment method based on the cooling slope were investigated . In the example of a set temperature 140℃ and timing 2 s, the rise time was measured as 30 s from room temperature to 140℃ and the temperature error range was -5 ~ +3℃. The completion status of enrichment was also accurately determined on the basis of the cooling slope. The results show that the rapid heating and accurate drying judgment can be effectively achieved by the use of electromagnetic induction heating technology combined with the judgment method of enrichment completion based on the cooling slope .

Key words: laser-induced breakdown spectroscopy, graphite enrichment, electromagnetic induction heating, cooling slope, drying judgment

中图分类号:

TN249
O433

张大海赵南京殷高方马明俊胡丽石朝毅董欣欣王寅余洋孟德硕余晓娅王久悦杨瑞芳. 电磁感应加热技术在水体重金属快速石墨富集中的应用[J]. 大气与环境光学学报, 2015, 10(1): 69-75.

ZHANG Da-Hai, ZHAO Na-Jing, YIN Gao-Fang, MA Ming-Jun, HU Li, SHI Chao-Yi, DONG Xin-Xin, WANG Yin, YU Yang, MENG De-Shuo, YU Xiao-Ya, WANG Jiu-Yue, YANG Rui-Fang. Application of Electromagnetic Induction Heating Technology in Rapid Drying of Graphite Enrichment of Heavy Metal in Water[J]. Journal of Atmospheric and Environmental Optics, 2015, 10(1): 69-75.

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