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- E-ISSN 2288-8985
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Study on analytical method and international quality control program for environmental lead
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2002, v.15 no.4, pp.381-387
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(2002). Study on analytical method and international quality control program for environmental lead. Analytical Science and Technology, 15(4), 381-387.
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Abstract
In this study, we introduced experience participated in ELPAT (Environmental Lead for Proficiency Analytical Testing) program that is administered by the American Industrial Hygiene Association and EPA. The 126 sample results of total 128 samples met reference value, as a result accepted 'proficient'. The concentration of Pb in air, paint chips, soils and dust wipes are <TEX>$0.0089{\sim}0.3956mg/m^3$</TEX>, 0.0500~8.9149%, 29.0<TEX>${\sim}$</TEX>1697 mg/kg and <TEX>$18.00{\sim}900.3{\mu}g/sample$</TEX>, respectively. The lead in environmental matrix prepared adequate techniques and analysed by flame atomic absorption spectrometry. The lead in air was extracted hydrochloric acid, in paint chips and soils were digested with microwave and hotplate and in dust wipes were prepared microwave digestion. No differences of each preparation techniques was found and all methods were to be proper.
- keywords
- lead, ELPAT, soil, paint chips, microwave, hotplate, digestion, quality control
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