Trace Elemental Analysis of Selenium and Antimony Using Hydride Generation Coupled to Laser Induced Breakdown Spectroscopy
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Youngstown State University / OhioLINK
2010
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=ysu1288009807 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-ysu12880098072021-08-03T06:17:54Z Trace Elemental Analysis of Selenium and Antimony Using Hydride Generation Coupled to Laser Induced Breakdown Spectroscopy Williamson, Latresa J. Analytical Chemistry Chemistry Environmental Science hydride generation laser induced breakdown spectroscopy trace analysis of selenium and antimony Detection of metalloids such as selenium and antimony in the environment is important for technological and health reasons. Selenium in trace amounts has biological importance and hydride generation is one of the most effective sample introduction techniques for analytical atomic spectroscopy measurements. Aqueous solutions of selenium and antimony are converted to a gaseous form via hydride generation and thegas is delivered to an atomizer for measurement. Laser Detection of metalloids such as selenium and antimony in the environment is important for technological and health reasons. Selenium in trace amounts has biological importance and hydride generation is one of the most effective sample introduction techniques for analytical atomic spectroscopy measurements. Aqueous solutions of selenium and antimony are converted to a gaseous form via hydride generation and the gas is delivered to an atomizer for measurement. Laser Induced Breakdown Spectroscopy, LIBS, is the atomic emission spectroscopy method that is used in this research to measure the gaseous form of the analyte generated by the hydride approach. Analyte atoms are atomized and excited by a laser-produced plasma and the atomic emission is measured at an element-specific wavelength. Optimization of the instrument to obtain the maximum wavelength of emission was performed using a 10 ppm solution of each element. The optimized parameters were used to measure various concentrations of each element in solution ranging from 0 to 10 ppm. A calibration curve was generated using the wavelength to plot intensity as a function of concentration. A limit of detection, LOD, was determined using the data from the calibration curve. Additional research in this work included studying the characteristics and properties of laser produced-plasmas and determining how this information can be utilized in further studies of trace analysis of selenium and antimony. 2010-10-31 English text Youngstown State University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ysu1288009807 http://rave.ohiolink.edu/etdc/view?acc_num=ysu1288009807 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Analytical Chemistry Chemistry Environmental Science hydride generation laser induced breakdown spectroscopy trace analysis of selenium and antimony |
| spellingShingle |
Analytical Chemistry Chemistry Environmental Science hydride generation laser induced breakdown spectroscopy trace analysis of selenium and antimony Williamson, Latresa J. Trace Elemental Analysis of Selenium and Antimony Using Hydride Generation Coupled to Laser Induced Breakdown Spectroscopy |
| author |
Williamson, Latresa J. |
| author_facet |
Williamson, Latresa J. |
| author_sort |
Williamson, Latresa J. |
| title |
Trace Elemental Analysis of Selenium and Antimony Using Hydride Generation Coupled to Laser Induced Breakdown Spectroscopy |
| title_short |
Trace Elemental Analysis of Selenium and Antimony Using Hydride Generation Coupled to Laser Induced Breakdown Spectroscopy |
| title_full |
Trace Elemental Analysis of Selenium and Antimony Using Hydride Generation Coupled to Laser Induced Breakdown Spectroscopy |
| title_fullStr |
Trace Elemental Analysis of Selenium and Antimony Using Hydride Generation Coupled to Laser Induced Breakdown Spectroscopy |
| title_full_unstemmed |
Trace Elemental Analysis of Selenium and Antimony Using Hydride Generation Coupled to Laser Induced Breakdown Spectroscopy |
| title_sort |
trace elemental analysis of selenium and antimony using hydride generation coupled to laser induced breakdown spectroscopy |
| publisher |
Youngstown State University / OhioLINK |
| publishDate |
2010 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=ysu1288009807 |
| work_keys_str_mv |
AT williamsonlatresaj traceelementalanalysisofseleniumandantimonyusinghydridegenerationcoupledtolaserinducedbreakdownspectroscopy |
| _version_ |
1719434311139065856 |