DOI QR코드

DOI QR Code

Preparation of wastewater-based reference materials for heavy metal analysis and interlaboratory study

중금속분석용 폐수표준물질 제조 및 실험실간 비교평가

  • Received : 2010.03.15
  • Accepted : 2010.06.01
  • Published : 2010.06.25

Abstract

In this study, the wastewater-based reference material (RM) was prepared and certified for 7 trace metal elements with evaluation of uncertainties. The RM was distributed to 25 laboratories for the interlaboratory comparison testing. The certified values and expanded uncertainties were derived using ISO guideline 35 and the standard uncertainties for homogenieties were 0.43~2.67% of certified values. The analytical results from the interlaboratory comparison testing showed normal distributions and the robust means from the interlaboratory comparison testing were higher than the certified values of the RM for all analytes.

Keywords

wastewater-based reference material;heavy metal analysis;interlaboratory testing;robust statistics

References

  1. W. Kandler, R. Schuhmacher, S. Roch, P. Schubert-Ullrich and R. Krska, Accred. Qual. Assur. 9, 82(2004). https://doi.org/10.1007/s00769-003-0696-7
  2. 국립환경과학원, "환경측정표준물질의 역할 및 활용", 2008.
  3. NRC-CNRC, "Certificate of Analysis, Riverine Water Reference Material for Trace Metals SLRS-3", 1994.
  4. KS A ISO Guide 35, "표준물질의 인증 -일반적 및 통계적 원칙", 2005.
  5. T. Linsinger, A. Liebich, E. Przyk and A. Lamberty, "Certification report. The certification of the mass fraction of As, Br, Cd, Cl, Cr, Hg, Pb, S and Sb and the assignment of indicative values for Sn and Zn in two polyethylene reference materials (CRM ERM-EC680k and ERM-EC681k)", 2007.
  6. KS A ISO 13528, "시험소간 비교 숙련도 시험에 사용되는 통계적 방법", 2007.
  7. M. Thompson, S. L. Ellison and R. Wood, Pure Appl. Chem., 78, 145-196(2006). https://doi.org/10.1351/pac200678010145
  8. IRMM, "The certification of the mass concentrations of As, Cd, cr, Cu, Fe, Mn, Ni, Pb, Se and Zn in wastewater", Report EUR 21067 EN, 2004.
  9. 국립환경과학원, "환경측정분석 정도관리를 위한 표준물질 제조 및 보급 -토양분석용 중금속 표준물질", 2008.
  10. KS Q 4001, "측정결과의 불확도 추정 및 표현을 위한 지침", 2005.
  11. Analytical Methods Committee, Analyst, 114, 1693-1697(2002).

Cited by

  1. Development of Analytical Reference Material for Proficiency Test of Pesticide Multi-residue Analysis in Tomato vol.35, pp.3, 2016, https://doi.org/10.5338/KJEA.2016.35.3.24
  2. Development of cabbage reference material for multi-residue pesticide analysis 2017, https://doi.org/10.1007/s13765-017-0336-2
  3. Development of Analytical Reference Material for Proficiency Test of Pesticide Multi-residue Analysis in Green-pepper vol.20, pp.3, 2016, https://doi.org/10.7585/kjps.2016.20.3.211
  4. Development and Validation of Reference Material for Proficiency Testing of Blood Heavy Metals in Environmental Biomonitoring vol.42, pp.6, 2016, https://doi.org/10.5668/JEHS.2016.42.6.450