A novel solid-state electrochemiluminescence sensor based on a Ru(bpy)(3)(2+)/nano Sm2O3 modified carbon paste electrode for the determination of L-proline

作者：Hosseini Morteza; Moghaddam Mohammad Reza; Faridbod Farnoush; Norouzi Parviz; Pur Mohammad Reza Karimi; Ganjali Mohammad Reza

来源：RSC Advances, 2015, 5(79): 64669-64674.

DOI：10.1039/c5ra06897e

A novel solid-state electrochemiluminescence (ECL) sensor was successfully developed for the determination of L-proline. The ECL signal was generated by a sensitive reaction between Ru(bpy)(3)(2+) and L-proline on a carbon paste electrode (CPE) modified with samarium oxide nanoparticles. The presence of Sm2O3 nanoparticles (NPs) in the carbon paste was found to enhance the electrochemiluminescence signal. Under optimized conditions, a linear relationship between the ECL intensity and the concentration of L-proline was observed in the linear range of 1.00 x 10(-9) to 1.65 x 10(-7) mol L-1 (R-2 = 0.996) with a detection limit of 6.0 x 10(-10) mol L-1 (S/N = 3) and a relative standard deviation of 3.3%. The method was sensitive, selective, simple and successfully applied to the analysis of L-proline in human serum and urine samples.

• 出版日期2015