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Matrix effects and analysis of biological material by spark source mass spectrometry

Matrixeffekte und Analyse von biologischem Material mit Hilfe der Funkenionen-Massenspektrometrie

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Zusammenfassung

Um die Bedeutung von Matrixeffekten zu untersuchen, wurden Analysen von synthetischem biologischem Material mit der Funkenquellen-Massenspektrometrie durchgeführt. Dabei wurde eine Beziehung zwischen der Veränderung der relativen Empfindlichkeitskoeffizienten und der Zusammensetzung des Funkenplasmas (und damit der Plasmatemperatur) festgestellt. Die bestimmten Empfindlichkeitskoeffizienten wurden zur Analyse von vier biologischen Standardreferenzmaterialien eingesetzt. Unter normalen Bedingungen wurde eine Genauigkeit von 10–13% und Nachweisgrenzen zwischen 0,005 und 0,5 ppm erreicht.

Summary

Spark-source mass spectrometric analyses of synthetic simulated biological samples were performed to determine the importance of matrix effects. A correlation between the variation of the relative sensitivity coefficients (RSC's) and the spark plasma composition, hence plasma temperature, was found. The determined RSC's were used in the analysis of four biological standard reference materials. An accuracy of 10–13% and detection limits between 0.005 and 0.5 ppm were obtained during analysis under normal conditions.

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Vos, L., Van Grieken, R. Matrix effects and analysis of biological material by spark source mass spectrometry. Z. Anal. Chem. 321, 32–36 (1985). https://doi.org/10.1007/BF00464483

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  • DOI: https://doi.org/10.1007/BF00464483

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