Publication
Utilization of a novel Ag(III)-luminol chemiluminescence system for determination of d-penicillamine in human urine samples
| Summary: | A novel sensitive chemiluminescence (CL) system ([Ag(HIO6)2]5--luminol reaction system), coupled with a flow injection, is introduced for determination of d-penicillamine. The system is based on the enhancement effect of chemiluminescence reaction by penicillamine in alkaline medium. Under the optimum conditions, the CL intensity is proportional to the concentrations of d-penicillamine with a good linearity. The linear range covers 1.5-150 ng mL-1 and the limit of detection of the method is 0.8 ng mL-1. The relative standard deviation is 0.23% for 11 repeated measurements of 0.06 µg mL-1 d-penicillamine. The method has been successfully applied to the determinations of d-penicillamine in pharmaceutical preparations and urine samples, giving rise to satisfactory results. Based on the chemiluminescent spectra and free radical trapping experiment performed in this work, a possible reaction mechanism for this reaction system is suggested. |
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| Main Authors: | Ma,Li |
| Other Authors: | Fan,Mengdi; Xu,Xiangdong; Kang,Weijun; Shi,Hongmei |
| Subject: | Ag(III)-luminol chemiluminescence d-penicillamine kinetic characteristic |
| Year: | 2011 |
| Country: | Brazil |
| Document type: | article |
| Access type: | open access |
| Associated institution: | IBICT |
| Language: | English |
| Origin: | Oasisbr |
| Summary: | A novel sensitive chemiluminescence (CL) system ([Ag(HIO6)2]5--luminol reaction system), coupled with a flow injection, is introduced for determination of d-penicillamine. The system is based on the enhancement effect of chemiluminescence reaction by penicillamine in alkaline medium. Under the optimum conditions, the CL intensity is proportional to the concentrations of d-penicillamine with a good linearity. The linear range covers 1.5-150 ng mL-1 and the limit of detection of the method is 0.8 ng mL-1. The relative standard deviation is 0.23% for 11 repeated measurements of 0.06 µg mL-1 d-penicillamine. The method has been successfully applied to the determinations of d-penicillamine in pharmaceutical preparations and urine samples, giving rise to satisfactory results. Based on the chemiluminescent spectra and free radical trapping experiment performed in this work, a possible reaction mechanism for this reaction system is suggested. |
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Funded activities
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