Solid Sampling in Analysis of Soils by Two-jet Plasma Atomic Emission Spectrometry

Zaksas, N. P.; Veryaskin, A. F.

doi:10.2116/analsci.33.605

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…For comparison, using such an approach for a dc arc with sample evaporation from a crater of graphite electrode requires a 100-, 50-, and 25-fold dilution of gallium, indium and tellurium oxides, respectively, which lead to worsening LODs of elements by more than an order of magnitude. Recently, the similar approach was used for analysis of different soils [24]. In spite of their complex and variable matrix composition, TJP-AES allowed direct determination of As, B, Cd, Cu, Hg and P after a twofold and Be, Co, Cr, Ga, Nb, Pb and Zn after a 10-fold dilution with a spectroscopic buffer.…”

Section: Analysis Of High Purity Substancesmentioning

confidence: 99%

Minor and Trace Elements in Whole Blood, Tissues, Proteins and Immunoglobulins of Mammals

Zaksas¹,

Nevinsky²

2018

Trace Elements - Human Health and Environment

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Microelements play different important roles in many physiological processes in all biological systems in both normal physiological and pathological conditions. They take part in the transport of nutrients and gases, support temperature, acid-base balance, homeostasis of the human organisms, maternal and child mental health, the functioning of enzymes, protein and DNA syntheses, cytoskeleton activation, etc. We have performed simultaneous determination of a number of minor and trace elements in whole blood and tissues of mammals by two-jet plasma atomic emission spectrometry (TJP-AES). TJP-AES allows direct analysis of powders without wet acid digestion and can be used for analysis of both large and small amount of the sample, which is important for biomedical investigations with humans and experimental animals. In addition, a content of different elements in preparations of human immunoglobulins was estimated by TJP-AES as well as using different physicochemical methods, the functional role of metal ions in antibodies functioning was analyzed. The analysis of the relative activity of antibodies with catalytic activity (abzymes) in the hydrolysis of DNA, RNA, proteins, peptides and oxidation-reduction reactions and the role of metal ions in the catalysis of these reactions by abzymes were carried out.

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Section: Analysis Of High Purity Substancesmentioning

confidence: 99%

Minor and Trace Elements in Whole Blood, Tissues, Proteins and Immunoglobulins of Mammals

Zaksas¹,

Nevinsky²

2018

Trace Elements - Human Health and Environment

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“…26–28 The problem of calibration samples in TJP-AES was not as acute as in the above methods intended for direct analysis of solids. The TJP-AES techniques developed made it possible to apply the unified calibration samples based on graphite powder for analysis of such different samples as soils, 29 bone, 26 freeze-dried whole blood, 27 and high purity gallium 24 after appropriate dilution of the sample with a spectroscopic buffer (2–10 times). It is an undoubted advantage of the method since availability of calibration samples is a key problem in analysis of solid samples.…”

Section: Introductionmentioning

confidence: 99%

Solid Sampling in Analysis of Various Plants Using Two-Jet Plasma Atomic Emission Spectrometry

Zaksas

2019

Appl Spectrosc

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The possibility of two-jet plasma atomic emission spectrometry for analysis of different plants using solid sample preparation and unified calibration samples was investigated. The certified reference materials of wheat, maize, rice, potato, grass mix, birch leaves, and Elodea canadensis were used for analysis. On the basis of the behavior of these plants in the plasma, they were divided into two groups: starch-containing materials (cereal and root crops) and leaves/grass. It was found that the previous sample carbonization should be used for analysis of starch-containing plants while leaves and grass could be analyzed by the direct technique. Carbonization was only applied for determining low concentrations of trace elements in leaves and grass. The calibration samples based on graphite powder and simple sample preparation, dilution of powdered sample with a spectroscopic buffer, were used for both direct analysis and analysis after carbonization. Such an approach allowed estimation of B, Ba, Be, Cd, Co, Cr, Cu, Ga, Fe, Mn, Ni, Pb, Si, Sr, V, and Zn in different plants. The limits of detection (LODs) provided by the direct technique were at the level of (µg·g−1): n × 0.1 for Cd, Cu, and Mn; n for B, Ba, Co, Cr, Fe, Ga, Ni, Pb, Sr, V, and Zn; n × 10 for Si. Carbonization allowed improving LODs of elements several times depending on the thermal stability and mineral composition of plants. The LODs of elements in plants obtained after carbonization are the following (µg·g−1): n × 0.01 for Be, Cd, Cu, and Mn; n × 0.1 for Co, Cr, Fe, Ga, Ni, Pb, Sr, V, Zn; and n for Si. The techniques suggested are fast, easily workable, and do not require harmful chemical reagents. In some cases, the influence of variable matrices and different element species on analytical signal of elements was not completely suppressed; the deviation of element concentrations from the true values was discussed.

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Atomic Spectrometry Update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2019

J. Anal. At. Spectrom.

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Solid Sampling in Analysis of Soils by Two-jet Plasma Atomic Emission Spectrometry

Cited by 6 publications

References 25 publications

Minor and Trace Elements in Whole Blood, Tissues, Proteins and Immunoglobulins of Mammals

Minor and Trace Elements in Whole Blood, Tissues, Proteins and Immunoglobulins of Mammals

Solid Sampling in Analysis of Various Plants Using Two-Jet Plasma Atomic Emission Spectrometry

Atomic Spectrometry Update – a review of advances in environmental analysis

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