Arsenic speciation using high performance liquid chromatography-inductively coupled plasma-mass spectrometry

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A method has been developed by Argonne National Laboratory to identify and quantify As(III), As(V), and organoarsenic compounds in environmental samples. A arsenic species were separated by reversed-phase, ion-pairing, HPLC using a microbore Inertsil-ODS{trademark} column. Only 1 {micro}L of sample was injected on the column, and the mobile phase flow rates were typically on the order of 40 {micro}L/min. The HPLC mobile phase was a mixture of methanol and tetrabutylammonium hydroxide (TBAH), and the column effluent was introduced into an ICP-mass spectrometer using direct injection nebulization. Detection limits of less than 1 pg As (as injected on the column) were ... continued below

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20 p.

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Bass, D. A.; Yaeger, J. S.; Crain, J. S.; Kiely, J. T.; Parish, K. J.; Gowdy, M. J. et al. August 1995.

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Description

A method has been developed by Argonne National Laboratory to identify and quantify As(III), As(V), and organoarsenic compounds in environmental samples. A arsenic species were separated by reversed-phase, ion-pairing, HPLC using a microbore Inertsil-ODS{trademark} column. Only 1 {micro}L of sample was injected on the column, and the mobile phase flow rates were typically on the order of 40 {micro}L/min. The HPLC mobile phase was a mixture of methanol and tetrabutylammonium hydroxide (TBAH), and the column effluent was introduced into an ICP-mass spectrometer using direct injection nebulization. Detection limits of less than 1 pg As (as injected on the column) were easily obtained for each arsenic species. The effect of changes in mobile phase composition and ICP-MS conditions will be described, as well as quality control measures, e.g., the use of surrogates, internal standards, and matrix spikes. Precision and accuracy information will be presented from the analysis of aqueous standards and soil extracts that were spiked with arsenic oxide [As(III)], sodium arsenate [As(V)], dimethylarsinic acid (DMAA), or chlorovinyl arsenious acid (CVAA). The authors believe that these data demonstrate the utility of this technique for the sensitive determination of arsenic species present in water or soil.

Physical Description

20 p.

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OSTI as DE95015641

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  • Workshop on metal specification and contamination of surface water, Jekyll Island, GA (United States), 25-28 Jun 1995

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  • Other: DE95015641
  • Report No.: ANL/CMT-ACL/VU--86365
  • Report No.: CONF-9506239--1
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/102125 | External Link
  • Office of Scientific & Technical Information Report Number: 102125
  • Archival Resource Key: ark:/67531/metadc625714

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  • August 1995

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  • June 16, 2015, 7:43 a.m.

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  • Nov. 18, 2015, 6:17 p.m.

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Bass, D. A.; Yaeger, J. S.; Crain, J. S.; Kiely, J. T.; Parish, K. J.; Gowdy, M. J. et al. Arsenic speciation using high performance liquid chromatography-inductively coupled plasma-mass spectrometry, report, August 1995; Illinois. (digital.library.unt.edu/ark:/67531/metadc625714/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.