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http://repository.aaup.edu/jspui/handle/123456789/748Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | r. m. shubietah | |
| dc.contributor.author | ali z. abu zuhri | |
| dc.contributor.author | a. g. fogg | |
| dc.date.accessioned | 2020-02-10T11:33:35Z | - |
| dc.date.available | 2020-02-10T11:33:35Z | - |
| dc.date.issued | 1994 | |
| dc.identifier.uri | http://repository.aaup.edu/jspui/handle/123456789/748 | - |
| dc.description.abstract | Guanine is determined at the 5.0×10^?10 ?2.0×10^?7 mol/l level by differential-pulse adsorptive stripping voltammetry at a hanging mercury drop electrode using the reduction peak of its copper (II) complex at ?0.21 V vs. Ag-AgCl electrode. The optimum analytical conditions were found to be Britton-Robinson buffer solution (pH 4.8), an accumulation potential of 0.0 V and an accumulation time of 3 min. Under these conditions, the detection limit is 5.0×10^?10 mol/l and the relative standard deviation 2.6% for 1.0×10^?7 mol/l guanine. The method is compared with the previous voltammetric methods. The presence of some purine derivatives does not interfere. | |
| dc.publisher | Fresenius' Journal of Analytical Chemistry | |
| dc.title | Determination of Nanomolar Level of Guanine by Differential – Pluse Adsorptive Cathodic Stripping Voltammetry of its Copper (II) complex | |
| dc.type | Article | |
| Appears in Collections: | Faculty & Staff Scientific Research publications | |
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