Journal
TALANTA
Volume 80, Issue 2, Pages 526-531Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2009.07.021
Keywords
Liquid-liquid microextraction; Phase separation by salt; Carbonyl compounds; 2,4-Dinitrophenylhydrazones; HPLC
Categories
Funding
- Council of Scientific and Industrial Research, New Delhi
Ask authors/readers for more resources
A simple and rapid method has been reported for the determination of carbonyl compounds involving reaction with 2,4-dinitrophenylhydrazine and extraction of hydrazones with water-miscible organic solvent acetonitrile when the phase separation occurs by addition of ammonium sulphate, a process called salt-assisted liquid-liquid microextraction. The extract was analyzed by high-performance liquid chromatography with UV detection at 360 nm. The procedure has been optimized with respect to solvent suitable for extraction, salt for phase separation between water and organic solvent, reaction temperature and reaction time. The method has been validated when a linear dynamic range was obtained between the amount of analyte and peak area of hydrazones in the range 7 mu g-15 mg L-1, the correlation coefficient over 0.9964-0.9991. and the limit of detection in the range 0.58-3.2 mu g L-1. Spiked water samples have been analyzed with adequate accuracy, and application of the method has been demonstrated in the analysis of benzalclehyde formed as oxidation product in pharmaceutical preparation where benzyl alcohol is used as preservative, and for a keto drug dexketoprofen. (C) 2009 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available