Journal article

Publication year: 2014

Pages: 801-811

Journal: International Journal of Environmental Analytical Chemistry

Volume number: 94

Issue number: 8

ISSN: 0306-7319

eISSN: 1029-0397

DOI Link: https://doi.org/10.1080/03067319.2013.879299

Publisher: Taylor and Francis Group

Abstract: 
The demonstration of an innovative miniaturised closed-vessel microwave-assisted extraction (mu MAE) method under the use of EDTA (mu MAE-EDTA) for determination of trace metal contents in grassland (Lolio-Cynosuretum) was examined by ICP-OES. The evaluation of the method was done by comparison of the results with another miniaturised closed-vessel microwave HNO3 method (mu MAE-H) and with a macro-scale microwave procedure (MAE-H). Concerning their homogeneity certified plant reference materials (CRMs) were used for validation of the applicability of mu MAE-EDTA procedure. For CRMs and 72 real plant samples, no significant differences were found between mu MAE-EDTA and MAE-H in the determination of Cd, Co, Cu, Mn, Ni, Pb, and Zn contents. Recovery rates achieved from mu MAE-EDTA for CRMs ranged between 100.0-102.6% for the investigated elements. The key characteristics of mu MAE-EDTA for determination of trace metal contents in plant samples are: (i) suitability as a high-throughput procedure; (ii) consumption of minimum volume of extracting agent and minimum amount of sample; and (iii) combination of fast, safe and environmentally friendly extraction procedure.

Harvard Citation style: Czarnecki, S. and Düring, R. (2014) Closed-vessel miniaturised microwave-assisted EDTA extraction to determine trace metals in plant materials, International Journal of Environmental Analytical Chemistry, 94(8), pp. 801-811. https://doi.org/10.1080/03067319.2013.879299

APA Citation style: Czarnecki, S., & Düring, R. (2014). Closed-vessel miniaturised microwave-assisted EDTA extraction to determine trace metals in plant materials. International Journal of Environmental Analytical Chemistry. 94(8), 801-811. https://doi.org/10.1080/03067319.2013.879299