Journal :   Asian Journal of Research in Chemistry

Volume No. :   10

Issue No. :  3

Year :  2017

Pages :   324-328

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Preconcentration of Imidacloprid with β – Cyclodextrin Polymer and Analysis by HPLC

Address:   Vanita1*, Usha Gupta2
1Assistant Professor in Chemistry, Punjabi University Neighbourhood Campus, Rampura Phul, Bathinda (Pb.), India
2Associate Professor, Department of Chemistry, Punjabi University, Patiala (Pb.), India
*Corresponding Author
DOI No: 10.5958/0974-4150.2017.00054.2

Cyclodextrins are type of oligosaccharide consisting of glucose units. Cyclodextrins are of mainly of three types a, ß and ? consisting of six, seven and eight glucose units respectively joined with a-1,4-glycosodic linkage. ß - cyclodextrin is a very stable, most useful and low priced oligosaccharide. Guest molecules can be incorporated in its cavity to form supramolecular complex. ß–cyclodextrin is modified with cross-linker 1,4- butanedioldiglycidyl ether to form polymer. This sorbent was used as a support for the solid phase extraction of imidacloprid from water samples and these samples were analysed with the help of HPLC. For quantitatative extraction(=95%) of imidacloprid with ß – cyclodextrin polymer various parameters like pH, amount of sorbent, sample volume, contact time and volume of eluent were optimized. The HPLC analysis of imidacloprid was done at ?max at 278nm using 80:20 acetonitrile: water as a mobile phase with a flow rate 1.0ml/min. Rt for imidacloprid comes at 2.9min. Enrichment factor is 75. LOD is 0.45 ng/ml and LOQ is 1.5 ng/ml. Relative standard deviation is 2.1%. The developed method was applied successfully for the determination of Imidacloprid in various water samples.
β – cyclodextrin, α-1,4-glycosodic linkage, supramolecular complex, Imidacloprid.
Vanita, Usha Gupta. Preconcentration of Imidacloprid with β – Cyclodextrin Polymer and Analysis by HPLC. Asian J. Research Chem. 2017; 10(3):324-328.
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