Title : ( Head-space single drop microextraction combined with gas chromatography with an electron capture detectorfor determination of iodine in infant formulas )
Authors: Jeiran Akhoundzadeh , Mahmod CHamsaz , Samane Raouf yazdinejad , Mohammad Hossein Arbab Zavar ,
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Abstract
Headspace single-drop microextraction (HS-SDME) coupled with gas chromatography with electron capture detection (GC-ECD) was used for quantification of total iodine in milk based samples of infant formula. In this procedure 3 mL of a mixture containing 1-octanol and 3-pentanone was exposed to the headspace of a 5 mL acidic (H2SO4, 2 mol L1) aqueous solution containing 1.5 mol L1 ZnSO4 for 30 minutes followed by addition of 1 mL of 1 mol L1 H2O2 for in situ generation of iodine. Optimization of the microextraction system was carried out using the Taguchi experimental design method. The limit of detection was determined to be 250 ng L1 with an enrichment factor of 150. The repeatability, expressed as a relative standard deviation, was 1.9% (n ¼ 6). The linear calibration working range was between 0.75 and 2000 mg L1 (r2 ¼ 0.998). The method was successfully applied for determination of iodine in milk based samples of infant formula
Keywords
Microextraction;Idodine determination; Gas chromatography
@article{paperid:1035924,
author = {Akhoundzadeh, Jeiran and CHamsaz, Mahmod and Raouf Yazdinejad, Samane and Arbab Zavar, Mohammad Hossein},
title = {Head-space single drop microextraction combined with gas chromatography with an electron capture detectorfor determination of iodine in infant formulas},
journal = {Analytical Methods},
year = {2013},
volume = {5},
number = {3},
month = {February},
issn = {1759-9660},
pages = {778--783},
numpages = {5},
keywords = {Microextraction;Idodine determination; Gas chromatography},
}
%0 Journal Article
%T Head-space single drop microextraction combined with gas chromatography with an electron capture detectorfor determination of iodine in infant formulas
%A Akhoundzadeh, Jeiran
%A CHamsaz, Mahmod
%A Raouf Yazdinejad, Samane
%A Arbab Zavar, Mohammad Hossein
%J Analytical Methods
%@ 1759-9660
%D 2013
