Development of an ombrotrophic peat bog (low ash) reference material for the determination of elemental concentrations.
نویسندگان
چکیده
Given the increasing interest in using peat bogs as archives of atmospheric metal deposition, the lack of validated sample preparation methods and suitable certified reference materials has hindered not only the quality assurance of the generated analytical data but also the interpretation and comparison of peat core metal profiles from different laboratories in the international community. Reference materials play an important role in the evaluation of the accuracy of analytical results and are essential parts of good laboratory practice. An ombrotrophic peat bog reference material has been developed by 14 laboratories from nine countries in an inter-laboratory comparison between February and October 2002. The material has been characterised for both acid-extractable and total concentrations of a range of elements, including Al, As, Ca, Cd, Cr, Cu, Fe, Hg, Mg, Mn, Na, Ni, P, Pb, Ti, V and Zn. The steps involved in the production of the reference material (i.e. collection and preparation, homogeneity and stability studies, and certification) are described in detail.
منابع مشابه
TIME DEPENDENT CHARACTERIZATION of OMBROTROPHIC PEAT CORES from POLAND and AUSTRIA for STUDYING ATMOSPHERIC DEPOSITION of METALS
Ombrotrophic peat bogs form an independent ecosystem fed entirely by atmospheric deposition. Ombrothropic peat preserves the record of deposition of metals of crustal origin and anthropogenic origin that is, caused by industrial, agricultural and other human activities. Two cores each of 40 cm length were taken f?om the peat bogs in southern Poland and the alpine region in Austria. The cores we...
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ورودعنوان ژورنال:
- Journal of environmental monitoring : JEM
دوره 6 5 شماره
صفحات -
تاریخ انتشار 2004