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2002 | 11 | 6 |

Tytuł artykułu

Validation and quality assurance of arsenic determination in urine by GFAAS after toluene extraction

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
This paper concerns quality assurance of arsenic determination in urine using the graphite furnace AAS method after toluene extraction. Obtained analytical results are used for validation and quality assurance purposes. The investigated urine samples were acquired from the workers of a large coal-fired Slovak power plant. In the proposed analytical method the following metrological characteristics were calculated: trueness, precision, recovery, the limit of detection and the limit of quantification. The method was satisfactorily used in the intercomparison test. The proposed method is suggested for utilisation in the assessment of occupational or environmental exposure to inorganic arsenic.

Wydawca

-

Rocznik

Tom

11

Numer

6

Opis fizyczny

p.617-623,fig.

Twórcy

autor
  • State Institute of Public Health, Cesta k nemocnici 1, SK-97556 Banska Bystrica, Slovak Republic
autor
autor
autor

Bibliografia

  • 1. BENCKO V., CIKRT M., LENER J. The toxical metals in occupational and environmental exposure of humans. 1st ed.; Avicenum: Prague, p. 59, 1984.
  • 2. ZHE-MING N., ZHU R., MEI L. Minimization of phosphate interference in the direct determination of arsenic in urine by electrothermal atomic absorption spectrometry, Anal. Chim. Acta 334, 177, 1996.
  • 3. SUBRAMANIAN K. S. Determination of arsenic in urine by graphite platform-in-furnace atomic absorption spectrometry. Canadian J. Spectr. 33, 173, 1988.
  • 4. WILLIE S. N. First order speciation of As using flow injection hydride generation atomic absorption spectrometry with in- situ trapping of the arsine in a graphite furnace. Spectrochim. Acta 51B, 1781, 1996.
  • 5. BENRAMNDANE L., ACCOMINOTTI M., VALON J. J. Validated determination of total arsenic species of toxicological interest (arsenite, arsenate and their metabolites) by atomic absorption spectrometry after separation from dietary arsenic by liquid extraction: toxicological applications. Analyst 123, 1711, 1998.
  • 6. BUCHET J. P., LAUWERYS R., ROELS H. Comparison of several methods for the determination of arsenic compounds in water and in urine. Int. Arch. Occup. Environ. Health 46, 11, 1980.
  • 7. NIST: Analysis Certificate of Standard Reference Material 2670. NIST: Gaithersburg, MD 20899, April 1993.
  • 8. INTERNAL DOCUMENT. The Principles of Good Laboratory Practice. Department of Chemical Analyses of the State Institute of Public Health: Banska Bystrica, Slovakia, May 1995.
  • 9. CRECELIUS E., YAGER J. Intercomparison of analytical methods for arsenic speciation in human urine. Envir. Health Perspectives 105 (6), 650, 1997.
  • 10. HARMONIZED GUIDELINES FOR INTERNAL QUALITY CONTROL IN ANALYTICAL CHEMISTRY LABORATORIES. IUPAC, ISO, AOAC, 1994.
  • 11. HORWITZ W. Evaluation of analytical methods used for regulation of foods and drugs. Anal. Chem. 54, 67A, 1982.
  • 12. SLOVAK STANDARD STN 01 0251 (equiv. ISO 5725­1986): Precision of test methods.
  • 13. Nomenclature in evaluation of analytical methods, including detection and quantification capabilities (IUPAC Recommendation), Pure & Appl. Chem. 67, 1699, 1995.
  • 14. MOCAK J., BOND A. M., MITCHELL S., SCHOLLARY G. A. Statistical overview of standard (IUPAC and ACS) and new procedures for determining the limits of detection and quantification: Application to voltametric and stripping techniques (IUPAC Technical Report). Pure & Appl. Chem. 69, 297, 1997.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-article-b960e441-0f62-44d0-9184-2539a386d63f
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