ANALYTICAL TESTING OF THE INTERFERENCE STANDARD METHOD (IFS) FOR METALS IN WINES BY INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY

Autor:	José Y. Neira, Leonardo Bennun, Rodrigo A Vidal, Rosario Castillo, Elizabeth González, Carlos Peña-Farfal, Mónica Latorre
Rok vydání:	2015
Předmět:	Analyte Chromatography Argon Chemistry Analytical chemistry chemistry.chemical_element IFS General Chemistry Plasma Ion Matrix (chemical analysis) Interference (communication) wine analysis Analytical Testing Inductively coupled plasma mass spectrometry isobaric interferences mass spectrometry
Zdroj:	Journal of the Chilean Chemical Society, Volume: 60, Issue: 3, Pages: 3083-3087, Published: SEP 2015 Journal of the Chilean Chemical Society v.60 n.3 2015 SciELO Chile CONICYT Chile instacron:CONICYT
ISSN:	0717-9707
DOI:	10.4067/s0717-97072015000300023
Popis:	An analytical testing study of interference standard method (IFS) for metals in wines with low and high residual sugar by inductively coupled plasma mass spectrometry (ICP-MS) was evaluated. Selection of IFS probes was based on the ions formed in the argon plasma, such as natural 38Ar+ or contaminant like 83Kr+ or also ions provided from the matrix sample (for instance, 13C+). The analytical signal was obtained from ratio between the original signals of the analyte and those of the IFS probe species. The accuracy was confirmed using a t-test statistic for comparison between the concentrations obtained by Flame Atomic Absorption Spectrometry (FAAS) and ICP-MS. In a first study, the IFS effect was analyzed by comparing the correlation coefficients obtained with or without dividing the analytical signal by the IFS. Using the 83Kr+ IFS probe provide always better results in the determination of Fe, Mn and Zn compared to 13C+ and 38Ar+.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::62c0327ef63b80546247383d4aeb7890 https://doi.org/10.4067/s0717-97072015000300023 Zobrazit plný text záznamu