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The Influence of Sample Drying Procedures on Mercury Concentrations Analyzed in Soils
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SYSNO ASEP 0443264 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The Influence of Sample Drying Procedures on Mercury Concentrations Analyzed in Soils Tvůrce(i) Hojdová, Maria (GLU-S) RID, SAI
Rohovec, Jan (GLU-S) RID, SAI
Chrastný, V. (CZ)
Penížek, V. (CZ)
Navrátil, Tomáš (GLU-S) RID, SAI, ORCIDZdroj.dok. Bulletin of Environmental Contamination and Toxicology. - : Springer - ISSN 0007-4861
Roč. 94, č. 5 (2015), s. 570-576Poč.str. 7 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova sample preparation ; drying procedures ; microbial activity ; freeze-drying ; contamination Vědní obor RIV DD - Geochemie CEP GP526/09/P404 GA ČR - Grantová agentura ČR GAP210/11/1369 GA ČR - Grantová agentura ČR Institucionální podpora GLU-S - RVO:67985831 UT WOS 000352614400006 EID SCOPUS 84939942214 DOI 10.1007/s00128-015-1521-9 Anotace Methods commonly used for soil sample preparation may be unsuitable for measuring Hg concentrations due to the possible loss of volatile Hg species when drying at higher temperatures. Here, the effects of freeze-drying, air drying at 25°C and oven-drying at 105°C on Hg concentrations in two soil types and three standard reference materials were tested. Two soils with different levels of Hg contamination and three reference materials were examined. A systematic decrease of Hg concentrations was observed in air-dried (24 %) and oven-dried (3 %) contaminated upland soils in comparison to freeze-dried control samples. The 105°C oven drying also led to loss of Hg from reference materials (5 %–8 % in comparison with the certified Hg concentration). Different results from the drying of sterilized reference materials and natural soils were probably related to the extent of microbiological activity, demonstrating the importance of this parameter in sample preparation for Hg analysis. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Rok sběru 2016
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