标题：Portable Dielectric Barrier Discharge-Atomic Emission Spectrometer
作者：Li, Na; Wu, Zhongchen; Wang, Yingying; Zhang, Jing; Zhang, Xiangnan; Zhang, Hengnan; Wu, Wenhai; Gao, Jing; Jiang, Jie
作者机构：[Li, Na; Zhang, Jing; Zhang, Xiangnan; Zhang, Hengnan; Wu, Wenhai; Gao, Jing; Jiang, Jie] Harbin Inst Technol Weihai, Sch Marine Sci & Technol, Weihai 更多
通讯作者地址：[Jiang, J]Harbin Inst Technol Weihai, Sch Marine Sci & Technol, Weihai 264209, Peoples R China.
摘要：This paper describes the first demonstration of a portable dielectric barrier discharge-atomic emission spectrometer (DBD-AES). The instrument primarily consists of a miniature electro-thermal vaporizer (ETV), DBD, and optical signal acquisition units. It weighs only 4.5 kg and is powered by a 24 V DC battery with a maximum power consumption of 37 W. The accompanying software can be operated on a laptop computer. A specially designed quartz tube integrates the ETV unit with the DBD chamber. The effects of experimental parameters were investigated. The limit of detection (LOD) for mercury was 0.4 mu g L-1 (1.2 pg) with a sampling volume of 3 mu L. The instrument is applicable for multielement analysis, and the LODs ranged from 0.16 to 11.65 mu g L-1 for Zn, Pb, Ag, Cd, Au, Cu, Mn, Fe, Cr, and As. The instrument was also validated by in-field analysis of seawater samples. The experimental results reliability, and practicality of the instrument.