(2018) FAST DETERMINATION OF BISPHENOL A IN SPIKED JUICE AND DRINKING WATER SAMPLES BY PIPETTE TIP SOLID PHASE EXTRACTION USING COBALT METAL ORGANIC FRAMEWORK AS SORBENT. Bulletin of the Chemical Society of Ethiopia. pp. 595-602. ISSN 1011-3924
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Abstract
A cobalt metal organic framework was prepared with rapid ultrasound assisted method by treatment of cobalt nitrate with pyridine 2,6-dicarboxilic acid dissolved in ethanolic media and used as a sorbent for pipette tip solid phase extraction of Bisphenol A (BPA) and its determination in spiked juice and drinking water samples by HPLC. Parameters which influence extraction efficiency such as pH, sample volume, amount of sorbent, type and volume of eluent, and number of draw/eject cycles for extraction and elusion were tested and optimized. Results showed that best extraction efficiency could be obtained at pH 3, 150 mu L of sample volume, 3 mg of adsorbent and 10 mu L of methanol as elution solvent. Numbers of draw/eject cycles for both sample extraction and elution were 7 cycles. Limit of detection and limit of quantification of this method were 0.07 and 0.3 mu g L-1, respectively, with linear dynamic range of 0.3 to 300 mu g L-1 for BPA. This method was applied successfully for determination of BPA in five spiked juices and drinking water samples.
Item Type: | Article |
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Keywords: | Cobalt metal organic framework Bisphenol A Pipette-tip solid phase extraction Juice analysis imprinted polymer paste electrode binary monomer milk prior microextraction nanoparticles carbon Chemistry |
Divisions: | |
Page Range: | pp. 595-602 |
Journal or Publication Title: | Bulletin of the Chemical Society of Ethiopia |
Volume: | 32 |
Number: | 3 |
Identification Number: | 10.4314/bcse.v32i3.17 |
ISSN: | 1011-3924 |
Depositing User: | مهندس مهدی شریفی |
URI: | http://eprints.zbmu.ac.ir/id/eprint/3897 |
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