Application of standard addition methodology for the determination of banned azo dyes in different leather types
(2005) In Analytica Chimica Acta 552(1-2). p.76-80- Abstract
- An analytical procedure based on microwave-assisted extraction (MAE) and standard addition was applied for the determination of banned azo dyes in bovine, sheep, and goat leather. Standard addition at four different concentration levels was performed using azo dyes, dissolved either in methanol or water. All dyes were determined indirectly by measuring their corresponding harmful aromatic amines, formed after reduction by use of sodium dithionite. Comparing found amounts of amines with theoretical target values allowed an assessment of accuracy. The recoveries were also compared with those obtained for non-spiked samples using external standard calibration. The standard addition approaches provided much better accuracy than external... (More)
- An analytical procedure based on microwave-assisted extraction (MAE) and standard addition was applied for the determination of banned azo dyes in bovine, sheep, and goat leather. Standard addition at four different concentration levels was performed using azo dyes, dissolved either in methanol or water. All dyes were determined indirectly by measuring their corresponding harmful aromatic amines, formed after reduction by use of sodium dithionite. Comparing found amounts of amines with theoretical target values allowed an assessment of accuracy. The recoveries were also compared with those obtained for non-spiked samples using external standard calibration. The standard addition approaches provided much better accuracy than external standard calibration, with recoveries close to 100% for most amines. Since there was no great difference in recoveries when using methanol or water as solvent, preparation of the dyes in methanol might be preferred because of the faster evaporation of the solvent after spiking. (c) 2005 Elsevier B.V. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/150895
- author
- Ahlström, Lars-Henric LU ; Raab, Juraj LU and Mathiasson, Lennart LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Analytica Chimica Acta
- volume
- 552
- issue
- 1-2
- pages
- 76 - 80
- publisher
- Elsevier
- external identifiers
-
- wos:000232970600009
- scopus:26844479452
- ISSN
- 1873-4324
- DOI
- 10.1016/j.aca.2005.07.048
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Analytical Chemistry (S/LTH) (011001004), Department of Chemistry (011001220)
- id
- 1422d0c6-b5f3-4d47-9688-068ad821181f (old id 150895)
- date added to LUP
- 2016-04-01 16:11:06
- date last changed
- 2022-02-05 06:28:00
@article{1422d0c6-b5f3-4d47-9688-068ad821181f,
abstract = {{An analytical procedure based on microwave-assisted extraction (MAE) and standard addition was applied for the determination of banned azo dyes in bovine, sheep, and goat leather. Standard addition at four different concentration levels was performed using azo dyes, dissolved either in methanol or water. All dyes were determined indirectly by measuring their corresponding harmful aromatic amines, formed after reduction by use of sodium dithionite. Comparing found amounts of amines with theoretical target values allowed an assessment of accuracy. The recoveries were also compared with those obtained for non-spiked samples using external standard calibration. The standard addition approaches provided much better accuracy than external standard calibration, with recoveries close to 100% for most amines. Since there was no great difference in recoveries when using methanol or water as solvent, preparation of the dyes in methanol might be preferred because of the faster evaporation of the solvent after spiking. (c) 2005 Elsevier B.V. All rights reserved.}},
author = {{Ahlström, Lars-Henric and Raab, Juraj and Mathiasson, Lennart}},
issn = {{1873-4324}},
language = {{eng}},
number = {{1-2}},
pages = {{76--80}},
publisher = {{Elsevier}},
series = {{Analytica Chimica Acta}},
title = {{Application of standard addition methodology for the determination of banned azo dyes in different leather types}},
url = {{http://dx.doi.org/10.1016/j.aca.2005.07.048}},
doi = {{10.1016/j.aca.2005.07.048}},
volume = {{552}},
year = {{2005}},
}