Determination of phosphorus content in marine sediment samples using inductively coupled plasma-optical emission spectrometry (ICP-OES) technique after microwave-assisted aqua regia digestion
Journal Title: Biuletyn Instytutu Morskiego - Year 2017, Vol 32, Issue 1
Abstract
A method for the determination of phosphorus content in marine sediment samples using ICP-OES technique has been developed. A microwave-assisted digestion with aqua regia has been applied for sediment sample dissolution. The method was optimized then its validation parameters were calculated. Assessing the selectivity found the spectral interferences from other elements (especially copper) can be partially eliminated by using the optimal operating conditions. The method exhibited excellent linearity (r>0.999) in the entire measurement range (25-5000 mg P kg-1). It was also characterized by high repeatability (coefficient of variation of 1%) and very good recovery (98%). The low expanded uncertainty (<10%) was associated with a high concentration of phosphorus in the marine sediment samples examined.<br/><br/>
Authors and Affiliations
Katarzyna Szczepańska, Grażyna Dembska, Łukasz Zegarowski, Barbara Aftanas
Keywords
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- EP ID EP188747
- DOI 10.5604/01.3001.0009.8784
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