Abstract:
A single-step procedure for trace elements analysis of milk samples is presented. Solubilization with small amounts of dymethylformamide (DMF) was assayed prior to inductively coupled plasma mass spectrometry (ICPMS) detection with a high efficiency sample introduction system. All main instrumental conditions were optimized in order to readily introduce the samples without matrix elimination. In order to assess and mitigate matrix effects in the determination of As, Cd, Co, Cu, Eu, Ga, Gd, Ge, Mn, Mo, Nb, Nd, Ni, Pb, Pr, Rb, Sm, S, Sr, Ta, Tb, V, Zn, and Zr, matrix matching calibration with 103Rh as internal standard (IS) was performed. The obtained limits of detection were between 0.68 (Tb) and 30 (Zn) μg L-1. For accuracy verification, certified Skim milk powder reference material (BCR 063R) was employed. The developed method was applied to trace elements analysis of commercially available milks. Principal components analysis was used to correlate the content of trace metals with the kind of milk, obtaining a classification according to adults, baby or baby fortified milks. The outcomes highlight a simple and fast approach that could be trustworthy for routine analysis, quality control and traceability of milks. © 2015 Elsevier B.V.All rights reserved.
Registro:
Documento: |
Artículo
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Título: | Single-step solubilization of milk samples with N,N-dimethylformamide for inductively coupled plasma-mass spectrometry analysis and classification based on their elemental composition |
Autor: | Azcarate, S.M.; Savio, M.; Smichowski, P.; Martinez, L.D.; Camiña, J.M.; Gil, R.A. |
Filiación: | Instituto de Las Ciencias de la Tierra y Ambientales de la Pampa (INCITAP), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de la Pampa, Av. Uruguay 151, Santa Rosa, La Pampa, Argentina Instituto de Química de San Luis - Área de Química Analítica, Facultad de Química Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, San Luis, Argentina Comisión Nacional de Energía Atómica, Gerencia Química, Av. Gral Paz 1499, San Martín, Buenos Aires, Argentina Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Av. Rivadavia 1917, Ciudad de Buenos Aires, Argentina
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Palabras clave: | Inductively coupled plasma mass spectrometry; Milk analysis; Principal component analysis; Solubilization with N,N-dimethylformamide, High efficiency sample introduction system; Dimethylformamide; Germanium; Inductively coupled plasma; Inductively coupled plasma mass spectrometry; Lead; Manganese; Mass spectrometers; Mass spectrometry; Organic solvents; Quality control; Solubility; Spectrometry; Trace analysis; Trace elements; Zinc; Elemental compositions; High-efficiency; Inductively coupled plasma mass spectrometries (ICPMS); Limits of detection; Milk analysis; N ,N-Dimethylformamide; Principal components analysis; Sample introduction; Principal component analysis; n,n dimethylformamide; plasma gas; adult; animal; calibration; chemistry; human; infant; mass spectrometry; milk; newborn; plasma gas; preschool child; principal component analysis; procedures; solubility; Adult; Animals; Calibration; Child, Preschool; Dimethylformamide; Humans; Infant; Infant, Newborn; Mass Spectrometry; Milk; Plasma Gases; Principal Component Analysis; Solubility |
Año: | 2015
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Volumen: | 143
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Página de inicio: | 64
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Página de fin: | 70
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DOI: |
http://dx.doi.org/10.1016/j.talanta.2015.04.088 |
Título revista: | Talanta
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Título revista abreviado: | Talanta
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ISSN: | 00399140
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CODEN: | TLNTA
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CAS: | n,n dimethylformamide, 68-12-2; Dimethylformamide; Plasma Gases
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00399140_v143_n_p64_Azcarate |
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Citas:
---------- APA ----------
Azcarate, S.M., Savio, M., Smichowski, P., Martinez, L.D., Camiña, J.M. & Gil, R.A.
(2015)
. Single-step solubilization of milk samples with N,N-dimethylformamide for inductively coupled plasma-mass spectrometry analysis and classification based on their elemental composition. Talanta, 143, 64-70.
http://dx.doi.org/10.1016/j.talanta.2015.04.088---------- CHICAGO ----------
Azcarate, S.M., Savio, M., Smichowski, P., Martinez, L.D., Camiña, J.M., Gil, R.A.
"Single-step solubilization of milk samples with N,N-dimethylformamide for inductively coupled plasma-mass spectrometry analysis and classification based on their elemental composition"
. Talanta 143
(2015) : 64-70.
http://dx.doi.org/10.1016/j.talanta.2015.04.088---------- MLA ----------
Azcarate, S.M., Savio, M., Smichowski, P., Martinez, L.D., Camiña, J.M., Gil, R.A.
"Single-step solubilization of milk samples with N,N-dimethylformamide for inductively coupled plasma-mass spectrometry analysis and classification based on their elemental composition"
. Talanta, vol. 143, 2015, pp. 64-70.
http://dx.doi.org/10.1016/j.talanta.2015.04.088---------- VANCOUVER ----------
Azcarate, S.M., Savio, M., Smichowski, P., Martinez, L.D., Camiña, J.M., Gil, R.A. Single-step solubilization of milk samples with N,N-dimethylformamide for inductively coupled plasma-mass spectrometry analysis and classification based on their elemental composition. Talanta. 2015;143:64-70.
http://dx.doi.org/10.1016/j.talanta.2015.04.088