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Alkaline hydrolysis combined with stir-bar sorptive extraction or sonication for the determination of banned azo dyes in leather

Ahlström, Lars-Henric LU ; Rowshanzamir, M. ; Joo, E. and Mathiasson, Lennart LU (2007) In The Journal of the American Leather Chemists Association 102(9). p.280-287
Abstract
Two approaches based on alkaline hydrolysis, in combination with either stir-bar sorptive extraction (SBSE) or sonication, were developed for the determination of banned azo dyes in bovine leather. All dyes were determined indirectly by measuring their corresponding harmful amines, formed after chemical reduction. Quantification was performed by employing standard addition methodology to compensate for analyte losses due to sample preparation (e.g. incomplete extraction). The mean recoveries (n=3) obtained by employing the SBSE and sonication procedures were 100 percent (RSD=26 percent) and 114 percent (RSD=11 percent), respectively. The linearity of the standard addition curves obtained was reasonable [SBSE (mean R-2=0.980) and sonication... (More)
Two approaches based on alkaline hydrolysis, in combination with either stir-bar sorptive extraction (SBSE) or sonication, were developed for the determination of banned azo dyes in bovine leather. All dyes were determined indirectly by measuring their corresponding harmful amines, formed after chemical reduction. Quantification was performed by employing standard addition methodology to compensate for analyte losses due to sample preparation (e.g. incomplete extraction). The mean recoveries (n=3) obtained by employing the SBSE and sonication procedures were 100 percent (RSD=26 percent) and 114 percent (RSD=11 percent), respectively. The linearity of the standard addition curves obtained was reasonable [SBSE (mean R-2=0.980) and sonication (mean R-2=0.997)]. Both procedures were very simple to perform and provided clean LC-UV chromatograms. Taking into account the repeatability, sonication was considered the preferred alternative. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CHROMATOGRAPHY-MASS-SPECTROMETRY, STANDARD ADDITION, WATER SAMPLES, AROMATIC-AMINES, WINE, LIQUID-CHROMATOGRAPHY
in
The Journal of the American Leather Chemists Association
volume
102
issue
9
pages
280 - 287
publisher
American Leather Chemists Association
external identifiers
  • wos:000249474200003
  • scopus:35048884048
ISSN
0002-9726
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)
id
4910f4d8-3dfa-4b26-b96e-67ccbb5f6f68 (old id 1416105)
date added to LUP
2016-04-01 15:31:23
date last changed
2025-04-04 14:31:26
@article{4910f4d8-3dfa-4b26-b96e-67ccbb5f6f68,
  abstract     = {{Two approaches based on alkaline hydrolysis, in combination with either stir-bar sorptive extraction (SBSE) or sonication, were developed for the determination of banned azo dyes in bovine leather. All dyes were determined indirectly by measuring their corresponding harmful amines, formed after chemical reduction. Quantification was performed by employing standard addition methodology to compensate for analyte losses due to sample preparation (e.g. incomplete extraction). The mean recoveries (n=3) obtained by employing the SBSE and sonication procedures were 100 percent (RSD=26 percent) and 114 percent (RSD=11 percent), respectively. The linearity of the standard addition curves obtained was reasonable [SBSE (mean R-2=0.980) and sonication (mean R-2=0.997)]. Both procedures were very simple to perform and provided clean LC-UV chromatograms. Taking into account the repeatability, sonication was considered the preferred alternative.}},
  author       = {{Ahlström, Lars-Henric and Rowshanzamir, M. and Joo, E. and Mathiasson, Lennart}},
  issn         = {{0002-9726}},
  keywords     = {{CHROMATOGRAPHY-MASS-SPECTROMETRY; STANDARD ADDITION; WATER SAMPLES; AROMATIC-AMINES; WINE; LIQUID-CHROMATOGRAPHY}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{280--287}},
  publisher    = {{American Leather Chemists Association}},
  series       = {{The Journal of the American Leather Chemists Association}},
  title        = {{Alkaline hydrolysis combined with stir-bar sorptive extraction or sonication for the determination of banned azo dyes in leather}},
  volume       = {{102}},
  year         = {{2007}},
}