Abstract：
:A fast, low-cost and sensitive method for the determination of trace cadmium was developed by using a miniaturized dielectric barrier discharge microplasma atomic emission spectrometer coupled with a tungsten coil (W-coil) for on-line hydride generation trapping-electrothermal vaporization. Total sample throughput can be greatly improved through the adoption of a horizontally fixed W-coil and the flow injection mode. In addition, the horizontally fixed W-coil and an inserted quartz capillary for on-line trapping contributed to stable and good signal even at a high gas flow rate when volatile cadmium species were trapped, and less sample-consuming and time-saving can be realized in this work. Compared to direct injection, the sensitivity and the LOD were improved by 29- and 38-fold, respectively. The proposed method provides a promising approach to develop a miniaturized instrumentation for highly sensitive detection of trace elements.
journal_name
Talantajournal_title
Talantaauthors
Deng Y,Li K,Hou X,Jiang Xdoi
10.1016/j.talanta.2021.122516keywords:
["Atomic emission spectrometry","Cadmium","Dielectric barrier discharge","Electrothermal vaporization","Hydride generation"]subject
Has Abstractpub_date
2021-10-01 00:00:00pages
122516eissn
0039-9140issn
1873-3573pii
S0039-9140(21)00437-9journal_volume
233pub_type
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