Determination of copper in fish feed by graphite furnace atomic absorption spectrometry using slurry sampling

Renato C. F. Neves; Paula M. Moraes; Fábio A. Silva; Vanessa R. Loureiro; Mayra A. D. Saleh; Cilene C. F. Padilha; Margarida M. Barros; Pedro M. Padilha

doi:10.1007/s11694-008-9061-1

Determination of copper in fish feed by graphite furnace atomic absorption spectrometry using slurry sampling

Renato C. F. Neves, Paula M. Moraes, Fábio A. Silva, Vanessa R. Loureiro, Mayra A. D. Saleh, Cilene C. F. Padilha, Margarida M. Barros, Pedro M. Padilha^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

The present work develops and optimizes a method to determine copper in samples of feces and fish feed by graphite furnace atomic absorption spectrometry (GFAAS) through the direct introduction of slurries of the samples into the spectrometer's graphite tube coated internally with metallic rhodium and tungsten carbide that acts as chemical modifiers. The limits of detection (LOD) and quantification (LOQ) calculated for 20 readings of the blank of the standard slurries (0.50% m/v of feces or feed devoid of copper) were 0.24 and 0.79 μg L -1 for the standard feces slurries and 0.26 and 0.87 μg L -1 for the standard feed slurries. The proposed method was applied in studies of absorption of copper in different fish feeds and their results proved compatible with that obtained from samples mineralized by acid digestion using microwave oven.

Original language	English
Pages (from-to)	274-279
Number of pages	6
Journal	Sensing and Instrumentation for Food Quality and Safety
Volume	2
Issue number	4
DOIs	https://doi.org/10.1007/s11694-008-9061-1
Publication status	Published - 2008
Externally published	Yes

Keywords

Copper determination
Fish feed
GFAAS
Slurries samples

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10.1007/s11694-008-9061-1

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title = "Determination of copper in fish feed by graphite furnace atomic absorption spectrometry using slurry sampling",

abstract = "The present work develops and optimizes a method to determine copper in samples of feces and fish feed by graphite furnace atomic absorption spectrometry (GFAAS) through the direct introduction of slurries of the samples into the spectrometer's graphite tube coated internally with metallic rhodium and tungsten carbide that acts as chemical modifiers. The limits of detection (LOD) and quantification (LOQ) calculated for 20 readings of the blank of the standard slurries (0.50% m/v of feces or feed devoid of copper) were 0.24 and 0.79 μg L -1 for the standard feces slurries and 0.26 and 0.87 μg L -1 for the standard feed slurries. The proposed method was applied in studies of absorption of copper in different fish feeds and their results proved compatible with that obtained from samples mineralized by acid digestion using microwave oven.",

keywords = "Copper determination, Fish feed, GFAAS, Slurries samples",

author = "Neves, {Renato C. F.} and Moraes, {Paula M.} and Silva, {F{\'a}bio A.} and Loureiro, {Vanessa R.} and Saleh, {Mayra A. D.} and Padilha, {Cilene C. F.} and Barros, {Margarida M.} and Padilha, {Pedro M.}",

note = "Funding Information: Acknowledgments The authors gratefully acknowledge the financial support of FAPESP/Brazil (Process 03/13362-6) and CNPq/ Brazil (Process 301123/2005-5). Copyright: Copyright 2012 Elsevier B.V., All rights reserved.",

year = "2008",

doi = "10.1007/s11694-008-9061-1",

language = "English",

volume = "2",

pages = "274--279",

journal = "Sensing and Instrumentation for Food Quality and Safety",

issn = "1932-7587",

publisher = "Springer New York",

number = "4",

}

TY - JOUR

T1 - Determination of copper in fish feed by graphite furnace atomic absorption spectrometry using slurry sampling

AU - Neves, Renato C. F.

AU - Moraes, Paula M.

AU - Silva, Fábio A.

AU - Loureiro, Vanessa R.

AU - Saleh, Mayra A. D.

AU - Padilha, Cilene C. F.

AU - Barros, Margarida M.

AU - Padilha, Pedro M.

N1 - Funding Information: Acknowledgments The authors gratefully acknowledge the financial support of FAPESP/Brazil (Process 03/13362-6) and CNPq/ Brazil (Process 301123/2005-5). Copyright: Copyright 2012 Elsevier B.V., All rights reserved.

PY - 2008

Y1 - 2008

N2 - The present work develops and optimizes a method to determine copper in samples of feces and fish feed by graphite furnace atomic absorption spectrometry (GFAAS) through the direct introduction of slurries of the samples into the spectrometer's graphite tube coated internally with metallic rhodium and tungsten carbide that acts as chemical modifiers. The limits of detection (LOD) and quantification (LOQ) calculated for 20 readings of the blank of the standard slurries (0.50% m/v of feces or feed devoid of copper) were 0.24 and 0.79 μg L -1 for the standard feces slurries and 0.26 and 0.87 μg L -1 for the standard feed slurries. The proposed method was applied in studies of absorption of copper in different fish feeds and their results proved compatible with that obtained from samples mineralized by acid digestion using microwave oven.

AB - The present work develops and optimizes a method to determine copper in samples of feces and fish feed by graphite furnace atomic absorption spectrometry (GFAAS) through the direct introduction of slurries of the samples into the spectrometer's graphite tube coated internally with metallic rhodium and tungsten carbide that acts as chemical modifiers. The limits of detection (LOD) and quantification (LOQ) calculated for 20 readings of the blank of the standard slurries (0.50% m/v of feces or feed devoid of copper) were 0.24 and 0.79 μg L -1 for the standard feces slurries and 0.26 and 0.87 μg L -1 for the standard feed slurries. The proposed method was applied in studies of absorption of copper in different fish feeds and their results proved compatible with that obtained from samples mineralized by acid digestion using microwave oven.

KW - Copper determination

KW - Fish feed

KW - GFAAS

KW - Slurries samples

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U2 - 10.1007/s11694-008-9061-1

DO - 10.1007/s11694-008-9061-1

M3 - Article

AN - SCOPUS:57049159808

SN - 1932-7587

VL - 2

SP - 274

EP - 279

JO - Sensing and Instrumentation for Food Quality and Safety

JF - Sensing and Instrumentation for Food Quality and Safety

IS - 4

ER -

Determination of copper in fish feed by graphite furnace atomic absorption spectrometry using slurry sampling

Abstract

Keywords

UN SDGs

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