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Paul RL, Davis WC, Yu L, Murphy KE, Guthrie WF, Leber DD, Bryan CE, Vetter TW, Shakirova G, Mitchell G, Kyle DJ, Jarrett JM, Caldwell KL, Jones RL, Eckdahl S, Wermers M, Maras M, Palmer CD, Verostek M, Geraghty CM, Steuerwald AJ, Parsons PJ. Certification of Total Arsenic in Blood and Urine Standard Reference Materials by Radiochemical Neutron Activation Analysis and Inductively Coupled Plasma - Mass Spectrometry. J Radioanal Nucl Chem 2014; 299:1555-1563. [PMID: 26300575 PMCID: PMC4544667 DOI: 10.1007/s10967-013-2866-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A newly developed procedure for determination of arsenic by radiochemical neutron activation analysis (RNAA) was used to measure arsenic at four levels in SRM 955c Toxic Elements in Caprine Blood and at two levels in SRM 2668 Toxic Elements in Frozen Human Urine for the purpose of providing mass concentration values for certification. Samples were freeze-dried prior to analysis followed by neutron irradiation for 3 h at a fluence rate of 1×1014cm-2s-1. After sample dissolution in perchloric and nitric acids, arsenic was separated from the matrix by extraction into zinc diethyldithiocarbamate in chloroform, and 76As quantified by gamma-ray spectroscopy. Differences in chemical yield and counting geometry between samples and standards were monitored by measuring the count rate of a 77As tracer added before sample dissolution. RNAA results were combined with inductively coupled plasma - mass spectrometry (ICP-MS) values from NIST and collaborating laboratories to provide certified values of (10.81 ± 0.54) μg/kg and (213.1 ± 0.73) μg/kg for SRM 2668 Levels I and II, and certified values of (21.66 ± 0.73) μg/kg, (52.7 ± 1.1) μg/kg, and (78.8 ± 4.9) μg/kg for SRM 955c Levels 2, 3, and 4 respectively. Because of discrepancies between values obtained by different methods for SRM 955c Level 1, an information value of < 5 μg/kg was assigned for this material.
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Affiliation(s)
- Rick L. Paul
- Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
| | - W. Clay Davis
- Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
| | - Lee Yu
- Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
| | - Karen E. Murphy
- Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
| | - William F. Guthrie
- Statistical Engineering Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
| | - Dennis D. Leber
- Statistical Engineering Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
| | - Colleen E. Bryan
- Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
| | - Thomas W. Vetter
- Analytical Chemistry Division, National Institute of Standards and Technology, Gaithersburg, MD 20899
| | - Gulchekhra Shakirova
- Inorganic and Radiation Analytical Toxicology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30341
| | - Graylin Mitchell
- Inorganic and Radiation Analytical Toxicology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30341
| | - David J. Kyle
- Inorganic and Radiation Analytical Toxicology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30341
| | - Jeffery M. Jarrett
- Inorganic and Radiation Analytical Toxicology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30341
| | - Kathleen L. Caldwell
- Inorganic and Radiation Analytical Toxicology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30341
| | - Robert L. Jones
- Inorganic and Radiation Analytical Toxicology Branch, Centers for Disease Control and Prevention, Atlanta, GA 30341
| | | | | | | | - C. D. Palmer
- Laboratory of Inorganic and Nuclear Chemistry, Wadsworth Center, New York State Department of Health (NYSDOH), Albany, NY 12201-0509
| | - M.F. Verostek
- Laboratory of Inorganic and Nuclear Chemistry, Wadsworth Center, New York State Department of Health (NYSDOH), Albany, NY 12201-0509
| | - C. M. Geraghty
- Laboratory of Inorganic and Nuclear Chemistry, Wadsworth Center, New York State Department of Health (NYSDOH), Albany, NY 12201-0509
| | - Amy J. Steuerwald
- Laboratory of Inorganic and Nuclear Chemistry, Wadsworth Center, New York State Department of Health (NYSDOH), Albany, NY 12201-0509
| | - Patrick J. Parsons
- Laboratory of Inorganic and Nuclear Chemistry, Wadsworth Center, New York State Department of Health (NYSDOH), Albany, NY 12201-0509
- Dept of Environmental Health Sciences, School of Public Health, University at Albany, 12201-0509
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