Possibilities Of Using A New Graphite-Castor Oil Polyurethane Composite Electrode As An Amperometric Flow Detector
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چکیده
The performance of a new graphite castor oil polyurethane composite electrode is evaluated as an amperometric flow injection detector using hydroquinone (HQ) as a probe. HQ was determined in photographic developers with a minimum detectable net concentration of 100 μmol L-1, and 81 determinations h-1, after optimization of parameters such as the detection potential, sample loop volume, and carrier solution flow rate. Interference of SO3 2present in the developers has been observed and could be eliminated by appropriate sample preparation. Results obtained at the composite electrode agreed with those from HPLC procedure within 95% confidence level, showing that the new composite can be used as an amperometric detector for flow analysis. 2006 Trade Science Inc. INDIA Web Publication Date : 10th June, 2006 Trade Science Inc. ACAIJ, 2(5-6), 2006 [187-194] Full Paper An Indian Journal Volume 2 Issue 5-6 June 2006 Analytical CHEMISTRY l ti l
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تاریخ انتشار 2006