Determination of l-proline based on anodic electrochemiluminescence of CdTe quantum dots

▶ A novel electrochemiluminescence (ECL) method for determination of l-proline was proposed. ▶ The method based on TGA-modified CdTe quantum dots (QDs) as the ECL reagent. ▶ The l-proline/QDs system was used in our homemade ECL flow chip. ▶ This simple and sensitive sensor revealed good reproducibility for ECL analysis. ▶ The method was satisfactorily applied to food analysis.