Estimation of Chlorpyriphos in its Formulation (Paraban 20% EC) by Reversed-Phase HPLC
A method has been developed for estimation of active ingredient in chlorpyriphos formulation (Paraban 20% EC). The formulation was extracted in chloroform, dried and resuspended in acetonitrile. The cleanup was performed using C18 SPE cartridge. The active ingredient was estimated using 5 μm ODS-II...
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| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2008-01-01
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| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2008/245140 |
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| Summary: | A method has been developed for estimation of active ingredient in chlorpyriphos formulation (Paraban 20% EC). The formulation was extracted in chloroform, dried and resuspended in acetonitrile. The cleanup was performed using C18 SPE cartridge. The active ingredient was estimated using 5 μm ODS-II column, mobile phase was acetonitrile: water (75:25 v/v) and detection at 229nm. The efficiency of clean up method was found to be 95% and minimum limit of detection < 2.5ng. The detector response was linear with in concentration range 2.5ng – 50ng at RSD 1.42%. |
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| ISSN: | 0973-4945 2090-9810 |