Study on rapid detection method of water heavy metals by Laser-induced breakdown spectroscopy coupled with liquid-solid conversion and morphological constraints
文献类型： 外文期刊
作者： Tian, Hongwu 1 ; Li, Chuanxia 2 ; Jiao, Leizi 2 ; Zhao, Xiande 2 ; Dong, Daming 2 ;
作者机构： 1.Shenyang Agr Univ, Coll Informat & Elect Engn, Shenyang 110866, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Intelligent Equipment Res Ctr, Beijing 100097, Peoples R China
3.Beijing Acad Agr & Forestry Sci, Beijing 100097, Peoples R China
关键词： surface water; heavy metal; Laser-induced breakdown spectroscopy; rapid detection
期刊名称：INTERNATIONAL CONFERENCE ON OPTOELECTRONIC MATERIALS AND DEVICES (ICOMD 2021)
ISSN： 0277-786X
年卷期： 2022 年 12164 卷
页码：
收录情况： SCI
摘要： High-sensitivity and rapid detection of heavy metal elements in water is in great demand. Traditional laboratory analysis methods limited to long cycles, complex processing, and risk of secondary pollution, which made it impossible to achieve on-site detection. Laser-induced breakdown spectroscopy (LIBS) has the characteristics of rapid and minimal damage and has been applied to the detection of solids, liquids and even gases. However, it is difficult to directly detect with LIBS due to the low content of heavy metals in water and the matrix effect of samples. We propose a rapid detection method of heavy metal elements in water by laser-induced breakdown spectroscopy combined with sample morphology constrained positioning. Using Pb as a representative element, analyze the enhancement effect and mechanism of the above sample processing method on the LIBS signal, and establish a calibration curve with a concentration range of 100-1000 ug/L. The correlation coefficient R2 is 0.97, and the detection limit reaches 86.6 ug/L., which meets the requirements of surface water quality testing. The study combined with portable LIBS equipment can provide a low-cost and rapid screening method for heavy metal pollution in surface water.
- 相关文献
作者其他论文 更多>>
-
Quantitative Determination of Cd Using Energy Dispersion XRF Based on Gaussian Mixture Clustering-Multilevel Model Recalibration
作者：Gao, Yunbing;Zhao, Yanan;Pan, Yuchun;Sun, Wenbin;Zhao, Xiande;Liu, Xiaoyang;Li, Xue;Mao, Xuefei
关键词：
-
Gas Imaging with Uncooled Thermal Imager
作者：Zhang, Mengjie;Chen, Guanghai;Lin, Peng;Zhang, Mengjie;Lin, Peng;Dong, Daming;Jiao, Leizi;Zhang, Mengjie;Lin, Peng;Dong, Daming;Jiao, Leizi
关键词：infrared imaging measurement; gas detection; uncooled thermal imager; development status
-
Long-range infrared absorption spectroscopy and fast mass spectrometry for rapid online measurements of volatile organic compounds from black tea fermentation
作者：Yang, Chongshan;Li, Guanglin;Zhao, Chunjiang;Fu, Xinglan;Yang, Chongshan;Jiao, Leizi;Wen, Xuelin;Lin, Peng;Duan, Dandan;Zhao, Chunjiang;Dong, Daming;Yang, Chongshan;Jiao, Leizi;Wen, Xuelin;Lin, Peng;Duan, Dandan;Dong, Daming;Dong, Chunwang
关键词：Black tea fermentation; Volatile organic compounds; Proton transfer reaction mass spectrometry; Fourier transform infrared spectroscopy; Principal component analysis; Extreme learning machine
-
Sustainable Solution Anode Glow Discharge-Atomic Emission Spectroscopy (SAGD-AES) with Semiconductor Cathode Cooling for Elemental Analysis
作者：Zheng, Peichao;Liu, Jiali;Wang, Jinmei;Wu, Meini;Qazi, Hafiz Imran Ahmad;He, Yuxin;Yan, Nantian;Fei, Guoxing;Tian, Hongwu;Dong, Daming;Wang, Jinmei
关键词：Elemental analysis; heavy metals; semiconductor refrigeration; solution anode glow discharge-atomic emission spectrometry (SAGD-AES)
-
Rapid Determination of Calcium, Iron, and Zinc in Gluconate Oral Solutions by Solution Cathode Glow Discharge - Atomic Emission Spectroscopy (SCGD-AES)
作者：Zheng, Peichao;Yan, Nantian;Wang, Jinmei;Fei, Guoxing;Qazi, Hafiz Imran Ahmad;Li, Biao;Tian, Hongwu;Dong, Daming;Tian, Hongwu;Dong, Daming;Guo, Lianbo
关键词：Elemental analysis; gluconate oral solutions; solution cathode glow discharge - atomic emission spectroscopy (SCGD-AES)
-
A high-efficiency, self-sustainable livestock barn air purification system
作者：Hou, Ruohui;Li, Xunjia;Ping, Jianfeng;Li, Xunjia;Ping, Jianfeng;Zhao, Xiande;Zhao, Xiande
关键词：Low-speed wind energy harvesting; Low-startup torque; Triboelectric nanogenerator; High -voltage electrostatic dust removal; Self-powered air purification
-
Green Fruit Detection with a Small Dataset under a Similar Color Background Based on the Improved YOLOv5-AT
作者：Fu, Xinglan;Zhao, Shilin;Wang, Chenghao;Tang, Xuhong;Li, Guanglin;Tao, Dan;Jiao, Leizi;Dong, Daming
关键词：green fruit; precision detection; feature information; data augmentation methods; channel attention module; spatial attention module
