Spectroscopy and Spectral Analysis, Volume. 42, Issue 4, 1139(2022)
Solution Cathode Glow Discharge-Atomic Emission Spectroscopy Coupled With Hydride Generation for Detecting Trace Mercury and Tin in Water
Figures & Tables(7)
Fig. 1. Schematic diagram of hydride generation-solution cathode glow discharge (HG-SCGD) experimental device
Fig. 3. (a) Influence of concentration of NaBH4, (b) solution pH and (c) argon flow rate on the signal intensity of Sn and Hg
Fig. 4. Influence of coexisting ions on the determination of (a) Sn and (b) Hg
Table 1. Calculation of detection limit of Sn and Hg
View tableView in ArticleTable 1. Calculation of detection limit of Sn and Hg
元素 R2 RSD(%, n=10) LoD/(μg·L-1) Sn 0.9963 2.92 6.85 Hg 0.9964 1.59 1.05
Table 2. Comparison of the detection limits of Sn and Hg with different excitation sources
View tableView in ArticleTable 2. Comparison of the detection limits of Sn and Hg with different excitation sources
方法 LoD/(μg·L-1) 文献 Sn Hg PVG-SCGD-AES - 1.6 [ 6 ]SCGD-AES 1 300 7.0 [ 12 ]CVG-ICP-OES - 13 [ 13 ]DBD-AAS 10.6 0.35 [ 14 ]CVG-AFS 0.1 0.1 [ 15 ]HG-SCGD 6.85 1.05 本方法
Table 3. Calculation of recovery rate of actual water sample
View tableView in ArticleTable 3. Calculation of recovery rate of actual water sample
元素 水样种类 添加浓度/
(mg·L-1)测量浓度/
(mg·L-1)回收
率/%测量相对
误差/%白云水库 20 19.83 99.16 5.20 Sn 红岩水库 25 25.70 102.78 2.97 九曲河 30 30.92 103.08 6.76 白云水库 1 1.01 100.88 1.34 Hg 红岩水库 1.5 1.52 101.34 2.36 九曲河 0.5 0.49 97.77 1.06
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Pei-chao ZHENG, Ran-ning LIU, Jin-mei WANG, Chu-hui FENG, Yu-tong HE, Mei-ni WU, Yu-xin HE. Solution Cathode Glow Discharge-Atomic Emission Spectroscopy Coupled With Hydride Generation for Detecting Trace Mercury and Tin in Water[J]. Spectroscopy and Spectral Analysis, 2022, 42(4): 1139
Paper Information
Category: Research Articles
Received: Apr. 7, 2021
Accepted: --
Published Online: Jul. 25, 2023
The Author Email: ZHENG Pei-chao (zhengpc@cqupt.edu.cn)
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