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Analysis of nutrition-relevant trace elements in human blood and serum by means of total reflection X-ray fluorescence (TXRF) spectroscopy

Research output: Journal contributions › Journal articles › Research › peer-review

Standard

Analysis of nutrition-relevant trace elements in human blood and serum by means of total reflection X-ray fluorescence (TXRF) spectroscopy. / Stosnach, Hagen; Mages, Margarete.
In: Spectrochimica Acta - Part B Atomic Spectroscopy, Vol. 64, No. 4, 04.2009, p. 354-356.

Research output: Journal contributions › Journal articles › Research › peer-review

Harvard

Stosnach, H & Mages, M 2009, 'Analysis of nutrition-relevant trace elements in human blood and serum by means of total reflection X-ray fluorescence (TXRF) spectroscopy', Spectrochimica Acta - Part B Atomic Spectroscopy, vol. 64, no. 4, pp. 354-356. https://doi.org/10.1016/j.sab.2009.03.019

APA

Stosnach, H., & Mages, M. (2009). Analysis of nutrition-relevant trace elements in human blood and serum by means of total reflection X-ray fluorescence (TXRF) spectroscopy. Spectrochimica Acta - Part B Atomic Spectroscopy, 64(4), 354-356. https://doi.org/10.1016/j.sab.2009.03.019

Vancouver

Stosnach H, Mages M. Analysis of nutrition-relevant trace elements in human blood and serum by means of total reflection X-ray fluorescence (TXRF) spectroscopy. Spectrochimica Acta - Part B Atomic Spectroscopy. 2009 Apr;64(4):354-356. doi: 10.1016/j.sab.2009.03.019

Bibtex

@article{9392520e47e14262894bee731d6f9400,
title = "Analysis of nutrition-relevant trace elements in human blood and serum by means of total reflection X-ray fluorescence (TXRF) spectroscopy",
abstract = "In clinical service laboratories, one of the most common analytical tasks with regard to inorganic traces is the determination of the nutrition-relevant elements Fe, Cu, Zn, and Se. Because of the high numbers of samples and the commercial character of these analyses, a time-consuming sample preparation must be avoided. In this presentation, the results of total reflection X-ray fluorescence measurements with a low-power system and different sample preparation procedures are compared with those derived from analysis with common methods like Atomic Absorption Spectroscopy (AAS) and Inductively Coupled Plasma Mass Spectroscopy (ICP-MS). The results of these investigations indicate that the optimal total reflection X-ray fluorescence analysis of the nutrition-relevant elements Fe, Cu, Zn, and Se can be performed by preparing whole blood and serum samples after dilution with ultrapure water and transferring 10 μl of internally standardized sample to an unsiliconized quartz glass sample carrier with subsequent drying in a laboratory oven. Suitable measurement time was found to be 600 s. The enhanced sample preparation by means of microwave or open digestion, in parts combined with cold plasma ashing, led to an improvement of detection limits by a factor of 2 for serum samples while for whole blood samples an improvement was only observed for samples prepared by means of microwave digestion. As the matrix elements P, S, Cl, and for whole blood Fe have a major influence on the detection limits, most probably a further enhancement of analytical quality requires the removal of the organic matrix. However, for the routine analysis of the nutrition-relevant elements, the dilution preparation was found to be sufficient.",
keywords = "Blood, Nutrition, Serum, Trace elements, TXRF, Engineering",
author = "Hagen Stosnach and Margarete Mages",
year = "2009",
month = apr,
doi = "10.1016/j.sab.2009.03.019",
language = "English",
volume = "64",
pages = "354--356",
journal = "Spectrochimica Acta - Part B Atomic Spectroscopy",
issn = "0584-8547",
publisher = "Elsevier B.V.",
number = "4",

}

RIS

TY - JOUR

T1 - Analysis of nutrition-relevant trace elements in human blood and serum by means of total reflection X-ray fluorescence (TXRF) spectroscopy

AU - Stosnach, Hagen

AU - Mages, Margarete

PY - 2009/4

Y1 - 2009/4

N2 - In clinical service laboratories, one of the most common analytical tasks with regard to inorganic traces is the determination of the nutrition-relevant elements Fe, Cu, Zn, and Se. Because of the high numbers of samples and the commercial character of these analyses, a time-consuming sample preparation must be avoided. In this presentation, the results of total reflection X-ray fluorescence measurements with a low-power system and different sample preparation procedures are compared with those derived from analysis with common methods like Atomic Absorption Spectroscopy (AAS) and Inductively Coupled Plasma Mass Spectroscopy (ICP-MS). The results of these investigations indicate that the optimal total reflection X-ray fluorescence analysis of the nutrition-relevant elements Fe, Cu, Zn, and Se can be performed by preparing whole blood and serum samples after dilution with ultrapure water and transferring 10 μl of internally standardized sample to an unsiliconized quartz glass sample carrier with subsequent drying in a laboratory oven. Suitable measurement time was found to be 600 s. The enhanced sample preparation by means of microwave or open digestion, in parts combined with cold plasma ashing, led to an improvement of detection limits by a factor of 2 for serum samples while for whole blood samples an improvement was only observed for samples prepared by means of microwave digestion. As the matrix elements P, S, Cl, and for whole blood Fe have a major influence on the detection limits, most probably a further enhancement of analytical quality requires the removal of the organic matrix. However, for the routine analysis of the nutrition-relevant elements, the dilution preparation was found to be sufficient.

AB - In clinical service laboratories, one of the most common analytical tasks with regard to inorganic traces is the determination of the nutrition-relevant elements Fe, Cu, Zn, and Se. Because of the high numbers of samples and the commercial character of these analyses, a time-consuming sample preparation must be avoided. In this presentation, the results of total reflection X-ray fluorescence measurements with a low-power system and different sample preparation procedures are compared with those derived from analysis with common methods like Atomic Absorption Spectroscopy (AAS) and Inductively Coupled Plasma Mass Spectroscopy (ICP-MS). The results of these investigations indicate that the optimal total reflection X-ray fluorescence analysis of the nutrition-relevant elements Fe, Cu, Zn, and Se can be performed by preparing whole blood and serum samples after dilution with ultrapure water and transferring 10 μl of internally standardized sample to an unsiliconized quartz glass sample carrier with subsequent drying in a laboratory oven. Suitable measurement time was found to be 600 s. The enhanced sample preparation by means of microwave or open digestion, in parts combined with cold plasma ashing, led to an improvement of detection limits by a factor of 2 for serum samples while for whole blood samples an improvement was only observed for samples prepared by means of microwave digestion. As the matrix elements P, S, Cl, and for whole blood Fe have a major influence on the detection limits, most probably a further enhancement of analytical quality requires the removal of the organic matrix. However, for the routine analysis of the nutrition-relevant elements, the dilution preparation was found to be sufficient.

KW - Blood

KW - Nutrition

KW - Serum

KW - Trace elements

KW - TXRF

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=67349156638&partnerID=8YFLogxK

U2 - 10.1016/j.sab.2009.03.019

DO - 10.1016/j.sab.2009.03.019

M3 - Journal articles

AN - SCOPUS:67349156638

VL - 64

SP - 354

EP - 356

JO - Spectrochimica Acta - Part B Atomic Spectroscopy

JF - Spectrochimica Acta - Part B Atomic Spectroscopy

SN - 0584-8547

IS - 4

ER -

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