2013
DOI: 10.1039/c3ay26454h
|View full text |Cite
|
Sign up to set email alerts
|

Sample preparation methods for determination of Cd, Pb and Sn in meat samples by GFAAS: use of acid digestion associated with a cold finger apparatus versus solubilization methods

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

0
9
0
5

Year Published

2014
2014
2022
2022

Publication Types

Select...
7

Relationship

1
6

Authors

Journals

citations
Cited by 19 publications
(14 citation statements)
references
References 31 publications
(35 reference statements)
0
9
0
5
Order By: Relevance
“…5, 2016 which increased its oxidizing power, eliminating the need for using perchloric acid. 12,15 As shown below, the calibration curves in aqueous medium for all the species studied showed good linear correlation coefficients (R > 0.99). In this work, it was possible to use the external calibration, because the samples were prepared by acid digestion, resulting in a low residual carbon content, which minimizes any matrix effect on the sign of the analytes.…”
Section: Resultsmentioning
confidence: 76%
See 1 more Smart Citation
“…5, 2016 which increased its oxidizing power, eliminating the need for using perchloric acid. 12,15 As shown below, the calibration curves in aqueous medium for all the species studied showed good linear correlation coefficients (R > 0.99). In this work, it was possible to use the external calibration, because the samples were prepared by acid digestion, resulting in a low residual carbon content, which minimizes any matrix effect on the sign of the analytes.…”
Section: Resultsmentioning
confidence: 76%
“…According to the authors, the samples were digested only with HNO 3 and the results for the analysis of respective analytes were satisfactory. Furthermore, this system has also been applied to other studies: determination of Hg in biological samples of fish; 14 Cd, Pb and Sn in meat samples; 15 As, Cd, Pb and Se, 16 Cu, Fe, Mn and Zn 17 in rice. Based on the above considerations, the objective of this work is to evaluate the applicability of the method developed by Souza et al 13 in sample preparation of xanthan gum for subsequent analysis of Ca, Cu, K, Mg, Na and Zn by atomic spectrometry techniques (flame atomic emission spectrometry, FAES; and flame atomic absorption spectrometry, FAAS).…”
Section: Introductionmentioning
confidence: 99%
“…Isso possibilita a operação em temperaturas mais elevadas, reduzindo o tempo de preparo e minimizando os riscos de contaminação, justificando a utilização destes sistemas no preparo de amostras para determinação de elementos como Cu, Fe, Mn e Zn. [11][12][13]17 Conforme os resultados apresentados na Tabela 1, foi possível observar que o procedimento proposto baseado na digestão ácida com sistema de refluxo (procedimento 1), aplicado à análise de três diferentes amostras de arroz (parboilizado, integral e branco) para a determinação de Cu, Fe, Mn e Zn por FAAS, apresentou resultados satisfatórios em relação a sua exatidão, pois quando comparado com métodos convencionais de preparo das amostras as concentrações obtidas estão em concordância para os analitos em estudo, não apresentado diferenças significativas, como se verificou por meio do teste t-student pareado com 95% de confiança.…”
Section: Comparação Entre Os Procedimentos De Preparo Das Amostrasunclassified
“…Consequentemente, menos reagentes são consumidos e o risco de contaminação por estes pode ser consideravelmente diminuído, o que justifica o uso destes sistemas de refluxo em procedimentos de preparação das amostras para determinação de elementos como Cu, Fe, Mn, Zn, dentre outros. [11][12][13] …”
Section: Introductionunclassified
See 1 more Smart Citation