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APPLICATION OF POLYDIACETYLENE REAGENTS IN SIMPLE FLOW INJECTION SPECTROPHOTOMETRIC SYSTEM FOR DETERMINATION OF LEAD IONS |
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| รหัสดีโอไอ | |
| Creator | Apichart Boonmalai |
| Title | APPLICATION OF POLYDIACETYLENE REAGENTS IN SIMPLE FLOW INJECTION SPECTROPHOTOMETRIC SYSTEM FOR DETERMINATION OF LEAD IONS |
| Contributor | Thanutpon Pattanatornchai |
| Publisher | Pibulsongkram Rajabhat University |
| Publication Year | 2564 |
| Journal Title | Life Sciences and Environment Journal |
| Journal Vol. | 22 |
| Journal No. | 2 |
| Page no. | 274-286 |
| Keyword | Flow injection, Lead, Polydiacetylene, Surfactant |
| URL Website | https://ph01.tci-thaijo.org/index.php/psru/index |
| Website title | Life Sciences and Environment Journal |
| ISSN | 2773-9201 |
| Abstract | The purpose of this research was to apply polydiacetylenes reagents in a simple flow injection spectrophotometric system for determination of lead ions. The reagent was prepared by mixing 10,12-pentacosadiynoic acid (PCDA) and sodium dodecyl sulphate (SDS) at a ratio of 1:5 mol. Then, the mixture forms conjugated polymer upon UV-irradiation. The fresh blue suspension can be used as a reagent in the flow injection spectrophotometric system. The experimental conditions were optimized such as concentration of poly(PCDA/SDS), volume of reagent loop, length of mixing coil, flow rate and stop time. The calibration curve was in the range of 0-100 ppm. The limit of detection and the limit of quantitation were 0.59 and 1.98 ppm, respectively. The recoveries were in the range of 94.5-98.7% and the sample throughput was 27 samples per hour. This technique was found to be good accuratcy and precision. The proposed method was applied to determine the amount of lead (Pb2+) in water samples. All results were in good agreement with those obtained from a flame atomic absorption spectroscopy (FAAS) method. |
