naa a22 4500 510752586 CHVBK 20180411083110.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s11270-012-1390-3 doi (NATIONALLICENCE)springer-10.1007/s11270-012-1390-3 Comparative Measurements and their Compliance with Standards of Total Mercury Analysis in Soil by Cold Vapour and Thermal Decomposition, Amalgamation and Atomic Absorption Spectrometry [Elektronische Daten] [Manuel Leiva G., Sandra Morales, Rodrigo Segura] Two methods to measure mercury concentration in soil are compared, and their compliance with international standards is determined: cold vapour atomic absorption spectrometry and thermal decomposition, amalgamation and atomic absorption spectrophotometry. The detection limit, quantification limit and uncertainty of these two analytical methods were evaluated and compared. The results indicated that thermal decomposition, amalgamation and atomic absorption spectrophotometry had a lower quantification limit and uncertainty than cold vapour atomic absorption spectrometry (quantification limit, 0.27 vs. 0.63mg kg−1; expanded uncertainty, 9.30% vs. 10.8%, respectively). Thermal decomposition, amalgamation and atomic absorption spectrophotometry allowed the determination of the base values for the concentration of mercury in soil recommended by international standards, achieving a lower detection limit than cold vapour atomic absorption spectrometry under the study conditions. In addition, thermal decomposition, amalgamation and atomic absorption spectrophotometry represent a more environmentally friendly alternative for mercury determination because this method uses fewer reagents and therefore generates less waste. Springer Science+Business Media Dordrecht, 2013 Mercury in soil nationallicence Atomic absorption spectrometry nationallicence Uncertainty nationallicence Standards compliance nationallicence Leiva G. Manuel Centro de Ciencias Ambientales and Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile aut Morales Sandra Centro Nacional del Medio Ambiente, Avenida Larraín 9975, La Reina, Santiago, Chile aut Segura Rodrigo Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago-33, Chile aut Water, Air, & Soil Pollution Springer Netherlands 224/2(2013-02-01), 1-13 0049-6979 224:2<1 2013 224 11270 https://doi.org/10.1007/s11270-012-1390-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-012-1390-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Leiva G Manuel Centro de Ciencias Ambientales and Departamento de Química, Facultad de Ciencias, Universidad de Chile, Casilla 653, Santiago, Chile aut NATIONALLICENCE 700 1- Morales Sandra Centro Nacional del Medio Ambiente, Avenida Larraín 9975, La Reina, Santiago, Chile aut NATIONALLICENCE 700 1- Segura Rodrigo Departamento de Química de los Materiales, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago-33, Chile aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/2(2013-02-01), 1-13 0049-6979 224:2<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer