Article ID Journal Published Year Pages File Type
1225037 Journal of Pharmaceutical and Biomedical Analysis 2006 5 Pages PDF
Abstract

A novel flow injection chemiluminescence (CL) analysis method for the determination of adenine in the presence of sodium dodecylbenzene sulfonate (SDBS) surfactant micelles is described. This method is based on the luminescent properties of the luminol–K2Cr2O7–adenine in alkaline medium sensitized by SDBS. The optimized experimental conditions were evaluated and the possible mechanism was discussed by examining CL emission spectrum and the effect of various free radical scavengers on CL emission intensity. The CL increase is linearly related to the concentration of adenine in the range of 2.92 × 10−6 to 4.38 × 10−10 mol l−1 with a detection limit of 2.46 × 10−10 mol l−1 (S/N = 3). The relative standard deviation for 2.92 × 10−7 mol l−1 samples was 1.67% (n = 12). The proposed method has been applied to the determination of adenine in human serum.

Related Topics
Physical Sciences and Engineering Chemistry Analytical Chemistry
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