Evaluation of the multi-element capabilities of collision/reaction cell inductively coupled plasma - mass spectrometry in wine analysis
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Título: | Evaluation of the multi-element capabilities of collision/reaction cell inductively coupled plasma - mass spectrometry in wine analysis |
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Autor/es: | Grindlay, Guillermo | Mora, Juan | Loos-Vollebregt, Margaretha T.C. de | Vanhaecke, Frank |
Grupo/s de investigación o GITE: | Espectrometría Atómica Analítica |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Analítica, Nutrición y Bromatología |
Palabras clave: | Spectral interference | Collision/reaction cell | ICP-MS | Multi-element analysis | Wine |
Área/s de conocimiento: | Química Analítica |
Fecha de publicación: | 14-may-2014 |
Editor: | Elsevier |
Cita bibliográfica: | Talanta. 2014, Accepted Manuscript. doi:10.1016/j.talanta.2014.05.008 |
Resumen: | This work explores the multi-element capabilities of inductively coupled plasma - mass spectrometry with collision/reaction cell technology (CCT-ICP-MS) for the simultaneous determination of both spectrally interfered and non-interfered nuclides in wine samples using a single set of experimental conditions. The influence of the cell gas type (i.e. He, He+H2 and He+NH3), cell gas flow rate and sample pre-treatment (i.e. water dilution or acid digestion) on the background-equivalent concentration (BEC) of several nuclides covering the mass range from 7 to 238 u has been studied. Results obtained in this work show that, operating the collision/reaction cell with a compromise cell gas flow rate (i.e. 4 mL min−1) improves BEC values for interfered nuclides without a significant effect on the BECs for non-interfered nuclides, with the exception of the light elements Li and Be. Among the different cell gas mixtures tested, the use of He or He+H2 is preferred over He+NH3 because NH3 generates new spectral interferences. No significant influence of the sample pre-treatment methodology (i.e. dilution or digestion) on the multi-element capabilities of CCT-ICP-MS in the context of simultaneous analysis of interfered and non-interfered nuclides was observed. Nonetheless, sample dilution should be kept at minimum to ensure that light nuclides (e.g. Li and Be) could be quantified in wine. Finally, a direct 5-fold aqueous dilution is recommended for the simultaneous trace and ultra-trace determination of spectrally interfered and non-interfered elements in wine by means of CCT-ICP-MS. The use of the CCT is mandatory for interference-free ultra-trace determination of Ti and Cr. Only Be could not be determined when using the CCT due to a deteriorated limit of detection when compared to conventional ICP-MS. |
Patrocinador/es: | G. Grindlay thanks the Jose Castillejo fellowship program from the Spanish Ministerio de Educación and the Generalitat Valenciana for financial support. |
URI: | http://hdl.handle.net/10045/37203 |
ISSN: | 0039-9140 (Print) | 1873-3573 (Online) |
DOI: | 10.1016/j.talanta.2014.05.008 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1016/j.talanta.2014.05.008 |
Aparece en las colecciones: | INV - GEAA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2014_Grindlay_etal_Talanta.pdf | Accepted Manuscript (acceso abierto) | 559,83 kB | Adobe PDF | Abrir Vista previa |
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