Gold nanorods and a nanocomposite material based on them: analytical possibilities for spectrophotometric determination of total catecholamines

Abstract

Gold nanorods and nanocomposite material based on them were synthesized and used as spectrophotometric reagents for determination of catecholamines. Approaches to the determination of total catecholamines content are discussed. Use of radar charts for evaluation of the error of catecholamines determination and for selection of the appropriate standard substance is proposed. Developed spectrophotometric techniques were used for determination of total catecholamines in a model mixture, urea samples and diluted blood serum. Accuracy of the techniques was proved by the standard addition method and by results of HPLC analysis.