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Dispersive liquid-liquid microextraction followed by high-performance liquid chromatography-diode array detection as an efficient and sensitive technique for determination of antioxidants

Farajzadeh, Mir Ali; Bahram, Morteza and Jönsson, Jan Åke LU (2007) In Analytica Chimica Acta 591(1). p.69-79
Abstract
Dispersive liquid-liquid microextraction (DLLME) and high performance liquid chromatography-diode array detection (HPLC-DAD) was presented for extraction and determination of Irganox 1010, Irganox 1076 and Irgafos 168 (antioxidants) in aqueous samples. Carbon tetrachloride at microliter volume level and acetonitrile were used as extraction and dispersive solvents, respectively. The main advantages of method are high speed, high enrichment factor, high recovery, good repeatability and extraction solvent volume at mu L level. Limit of detection for analytes is between 3 and 7 ng mL(-1). One variable at a time optimization and response surface modeling were used to obtain optimum conditions for microextraction procedure and nearly same... (More)
Dispersive liquid-liquid microextraction (DLLME) and high performance liquid chromatography-diode array detection (HPLC-DAD) was presented for extraction and determination of Irganox 1010, Irganox 1076 and Irgafos 168 (antioxidants) in aqueous samples. Carbon tetrachloride at microliter volume level and acetonitrile were used as extraction and dispersive solvents, respectively. The main advantages of method are high speed, high enrichment factor, high recovery, good repeatability and extraction solvent volume at mu L level. Limit of detection for analytes is between 3 and 7 ng mL(-1). One variable at a time optimization and response surface modeling were used to obtain optimum conditions for microextraction procedure and nearly same experimental conditions were obtained using both optimization methods. Recoveries in the ranges 78-86% and 84-110% were obtained by one variable at a time and response surface modeling, respectively. Using tap water and packed water as matrices do not show any detrimental effect on the extraction recoveries and enrichment factors of analytes. (C) 2007 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
one variable at a time, sample preparation, liquid chromatography, high-performance, dispersive liquid-liquid extraction, antioxidant, optimization, response surface modeling
in
Analytica Chimica Acta
volume
591
issue
1
pages
69 - 79
publisher
Elsevier
external identifiers
  • wos:000246498900011
  • scopus:34247156770
ISSN
1873-4324
DOI
10.1016/j.aca.2007.03.040
language
English
LU publication?
yes
id
1af8042a-e5b0-4c70-bd88-3b2fa00fd07e (old id 659728)
date added to LUP
2007-12-11 20:36:46
date last changed
2017-10-01 04:44:38
@article{1af8042a-e5b0-4c70-bd88-3b2fa00fd07e,
  abstract     = {Dispersive liquid-liquid microextraction (DLLME) and high performance liquid chromatography-diode array detection (HPLC-DAD) was presented for extraction and determination of Irganox 1010, Irganox 1076 and Irgafos 168 (antioxidants) in aqueous samples. Carbon tetrachloride at microliter volume level and acetonitrile were used as extraction and dispersive solvents, respectively. The main advantages of method are high speed, high enrichment factor, high recovery, good repeatability and extraction solvent volume at mu L level. Limit of detection for analytes is between 3 and 7 ng mL(-1). One variable at a time optimization and response surface modeling were used to obtain optimum conditions for microextraction procedure and nearly same experimental conditions were obtained using both optimization methods. Recoveries in the ranges 78-86% and 84-110% were obtained by one variable at a time and response surface modeling, respectively. Using tap water and packed water as matrices do not show any detrimental effect on the extraction recoveries and enrichment factors of analytes. (C) 2007 Elsevier B.V. All rights reserved.},
  author       = {Farajzadeh, Mir Ali and Bahram, Morteza and Jönsson, Jan Åke},
  issn         = {1873-4324},
  keyword      = {one variable at a time,sample preparation,liquid chromatography,high-performance,dispersive liquid-liquid extraction,antioxidant,optimization,response surface modeling},
  language     = {eng},
  number       = {1},
  pages        = {69--79},
  publisher    = {Elsevier},
  series       = {Analytica Chimica Acta},
  title        = {Dispersive liquid-liquid microextraction followed by high-performance liquid chromatography-diode array detection as an efficient and sensitive technique for determination of antioxidants},
  url          = {http://dx.doi.org/10.1016/j.aca.2007.03.040},
  volume       = {591},
  year         = {2007},
}