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ICP slurry introduction for simple and rapid determination of Pb, Mg and Ca in plant roots

100%

Barałkiewicz D. , Kanecka-Hanc A. , Gramowska H.

Open Chemistry

2007

tom 5

nr 4

1148-1157

Pb, Mg and Ca were simultaneously determined in plant roots by slurry introduction into inductively coupled plasma optical emission spectrometry (SS-ICP-OES). Slurries were prepared in 0.5% or 5% (v/v) HNO3 with 0.5, or 5% (v/v) Triton X-100. Omission of the Triton X-100 improved results. Compared with wet ashing of the root sample followed by ICP-OES, ICP-MS and FAAS, the method offers: comparable results, simplification of sample preparation, less sample contamination, and reduction in the use of dangerous and corrosive reagents. The precisions varied: 1.7% for Mg, 2.8% for Ca and 4.3% for Pb, and were not significantly different (95% confidence level) from those of conventional analysis. [...]

Determination of vanadium content in soils by slurry sampling electrothermal atomic absorption spectrometry using KO300G as the stabilizing agent

100%

Barałkiewicz D. , Gramowska H. , Ren K. , Mleczek M.

Open Chemistry

2006

tom 4

nr 2

363-374

A direct and sensitive method for the determination of vanadium concentrations in soil is developed using ultrasonic slurry sampling electrothermal atomic absorption spectrometry (USSSETAAS). The surfactant, KO300G, is used as the stabilizing agent. The precision and accuracy of the method are investigated. The detection limits are 0.6 and 0.7 µg 1−1 for SRM Montana Soil 2711 and SRM Soil - S, respectively. The method is applied to determine the vanadium content in 10 soil samples from the Wielkopolska region.