Effect of acid digestion method on cobalt determination in plant materials

Polkowska-Motrenko, Halina; Danko, B.; Dybczyński, R.; Koster-Ammerlaan, Anneke; Bode, P.

doi:10.1016/s0003-2670(99)00867-3

Cited by 38 publications

(15 citation statements)

References 24 publications

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“…Additionally, plants can modify the conditions of the rhizosphere through processes like the production of root exudates or changing of the pH (Adriano, 2001;Cattani et al, 2006). Under natural conditions, the chemical elements associated with resistant soil fractions such as oxy-hydroxides, organic matter and sulphides may also be released into solution if environmental conditions are altered (Li and Thornton, 2001;Polkowska-Motrenko et al, 2000;Rauret, 1998;Tessier et al, 1979).…”

Section: Bioavailability Of Metalsmentioning

confidence: 99%

Selective chemical extraction of heavy metals in tailings and soils contaminated by mining activity: Environmental implications

Favas

Pratas

Gomes

et al. 2011

Journal of Geochemical Exploration

125

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Section: Bioavailability Of Metalsmentioning

confidence: 99%

Selective chemical extraction of heavy metals in tailings and soils contaminated by mining activity: Environmental implications

Favas

Pratas

Gomes

et al. 2011

Journal of Geochemical Exploration

125

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“…Nevertheless, the results shown in Tables 3 and 4 for the analysis of peach and spinach leaves SRMs, respectively revealed that the recoveries for Al, Cu, Zn, V, Mo, and Ni are not as good as the other elements. The lower recovery in this case might be contributed to the silicon content of peach and spinach leaves6; these elements are not completely released in microwave digestion as jelly silicon contents can keep part of the analytes while digestion is in progress627. This reduction in the recovery of elements, which was mentioned above, is directly related to the amount of silicon content of the leaves.…”

Section: Discussionmentioning

confidence: 81%

A simple design for microwave assisted digestion vessel with low reagent consumption suitable for food and environmental samples

Gholami

Behkami

Zain

et al. 2016

Sci Rep

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The objective of this work is to prepare a cost-effective, low reagent consumption and high performance polytetrafluoroethylene (PTFE) vessel that is capable to work in domestic microwave for digesting food and environmental samples. The designed vessel has a relatively thicker wall compared to that of commercial vessels. In this design, eight vessels are placed in an acrylonitrile butadiene styrene (ABS) holder to keep them safe and stable. This vessel needs only 2.0 mL of HNO3 and 1.0 mL H2O2 to digest 100 mg of biological sample. The performance of this design is then evaluated with an ICP-MS instrument in the analysis of the several NIST standard reference material of milk 1849a, rice flour 1568b, spinach leave 1570a and Peach Leaves 1547 in a domestic microwave oven with inverter technology. Outstanding agreement to (SRM) values are observed by using the suggested power to time microwave program, which simulates the reflux action occurring in this closed vessel. Taking into account the high cost of commercial microwave vessels and the volume of chemicals needed for various experiments (8–10 mL), this simple vessel is cost effective and suitable for digesting food and environmental samples.

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“…All stages of the method were very carefully studied [9,10,11]. Special attention was paid to uncertainty evaluation and reducing uncertainty values at all stages of the method, enabling favourable conditions to be met.…”

Section: Resultsmentioning

confidence: 99%

Metrological assessment of the high-accuracy RNAA method for determination of cobalt in biological materials

Polkowska-Motrenko

Danko

Dybczyński

2004

Analytical and Bioanalytical Chemistry

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The paper summarizes work on the development of the high-accuracy RNAA method for the determination of trace amounts of cobalt in biological materials. The method is based on a combination of neutron activation with selective and quantitative isolation of the analyte in a state of high radiochemical purity by use of column chromatography followed by gamma-ray spectrometric measurements. The method was devised according to a set of rules, which were formulated to obtain high accuracy of the method. The procedure has been also equipped with several criteria as key factors in quality assurance. Qualification of the high-accuracy RNAA method as a primary ratio method has been demonstrated and its usefulness in the certification of the candidate reference materials tea leaves and mixed Polish herbs is presented.

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Effect of acid digestion method on cobalt determination in plant materials

Cited by 38 publications

References 24 publications

Selective chemical extraction of heavy metals in tailings and soils contaminated by mining activity: Environmental implications

Selective chemical extraction of heavy metals in tailings and soils contaminated by mining activity: Environmental implications

A simple design for microwave assisted digestion vessel with low reagent consumption suitable for food and environmental samples

Metrological assessment of the high-accuracy RNAA method for determination of cobalt in biological materials

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