NDLI: 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 <i>versus</i> solubilization methods

Content Provider	Royal Society of Chemistry (RSC)
Author	Vieira, Mariana Antunes Oreste, Eliézer Quadro Ribeiro, Anderson Schwingel Oliveira, Richard Macedo de Nunes, Adriane Medeiros
Copyright Year	2013
Abstract	The aim of this study was to present three sample preparation methods for the determination of Cd, Pb and Sn in meat by Graphite Furnace Atomic Absorption Spectrometry (GFAAS): acid digestion, solubilization with tetramethylammonium hydroxide and formic acid. For the digestion with HNO3, a conventional open system with a cold finger was used. This system helped to avoid losses of analytes and reagents by volatilization, permitting to operate at high temperatures applied at a digester block and reducing the digestion time (∼1 h). Solubilizations were performed at room temperature. The slurry was left standing overnight and remained closed until achieving complete solubilization. The temperature program of the graphite furnace was optimized for each element in the different means of preparation samples using a mixture of Pd–Mg. The figures of merit were similar for all sample preparation methods evaluated. The limits of detection obtained for the acid digestion procedure were 0.0006, 0.0164 and 0.0520 μg g−1 for Cd, Pb and Sn, respectively. In order to evaluate the accuracy of the results obtained by the three sample preparation methods, recovery tests for four real meat samples were performed and the recoveries ranged from 93.7 to 109%, supporting the accuracy of the method. Also, different certified reference materials of meat were analyzed and the results obtained were in agreement with the certified value at 95% of confidence (t-test). The best results were obtained by the acid digestion procedure with the cold finger system. This procedure is faster, the system is semi-closed with no significant contamination or loss of analytes by volatilization and it provides a better signal/noise ratio.
Starting Page	1590
Ending Page	1595
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599660
Volume Number	5
Issue Number	6
Journal	Analytical Methods
DOI	10.1039/c3ay26454h
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Acid Thermodynamic system Graphite Lead Signal-to-noise ratio Tetramethylammonium hydroxide Cold finger Nitric acid
Content Type	Text
Resource Type	Article
Subject	Analytical Chemistry Engineering Chemical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

ial designs for method development of the determination of Cd and Pb in fi sh and shrimp by GF AAS after sample freeze-drying and tetramethylammonium hydroxide solubilization

Evaluation of sample preparation methods based on alkaline and acid solubilization for the determination of Na and K in meat samples by atomic spectrometric techniques

Determination of inorganic and total mercury in marine biological samples by cold vapor generation inductively coupled plasma mass spectrometry after tetramethylammonium hydroxide digestion

Determination of Cd, Pb and Cu in chia seeds by microwave digestion-HR-CS GFAAS

Evaluation of sample preparation methods based on alkaline and acid solubilization for the determination of Na and K in meat samples by atomic spectrometric techniques

Determination of Cd and Pb in food slurries by GFAAS using cryogenic grinding for sample preparation.

Determination of cadmium and lead in fresh meat by slurry sampling graphite furnace atomic absorption spectrometry

Determination of total mercury in biological tissues by flow injection cold vapour generation atomic absorption spectrometry following tetramethylammonium hydroxide digestion.

Determination of phosphorus in copper artifacts by graphite furnace aas.

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

Similar Documents

ial designs for method development of the determination of Cd and Pb in fi sh and shrimp by GF AAS after sample freeze-drying and tetramethylammonium hydroxide solubilization

Evaluation of sample preparation methods based on alkaline and acid solubilization for the determination of Na and K in meat samples by atomic spectrometric techniques

Determination of inorganic and total mercury in marine biological samples by cold vapor generation inductively coupled plasma mass spectrometry after tetramethylammonium hydroxide digestion

Determination of Cd, Pb and Cu in chia seeds by microwave digestion-HR-CS GFAAS

Evaluation of sample preparation methods based on alkaline and acid solubilization for the determination of Na and K in meat samples by atomic spectrometric techniques

Determination of Cd and Pb in food slurries by GFAAS using cryogenic grinding for sample preparation.

Determination of cadmium and lead in fresh meat by slurry sampling graphite furnace atomic absorption spectrometry

Determination of total mercury in biological tissues by flow injection cold vapour generation atomic absorption spectrometry following tetramethylammonium hydroxide digestion.

Determination of phosphorus in copper artifacts by graphite furnace aas.

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