Rapid determination of pentazocine in human plasma and urine by a potentiometric method

Authors: Ali R Allafchian, Ali A Ensafi, M Saraji

Publication date: 2009/2/23

Journal name: Analytical Letters

Volume: 42

Pages: 571-583

Publisher: Taylor & Francis Group

Abstract A fast potentiometric determination method has been reported for pentazocine in
human plasma without complicated pretreatments using a coated-wire potentiometric
selective electrode. The sensing membrane was made by incorporating of ion-association
complexes of pentazocine cation and sodium tetraphenyl borate (NaTPB) in a polyvinyl
chloride. The sensor exhibited fast, stable, and linear Nernstian response over the range of
5× 10− 5 to 0.1 mol L− 1 pentazocine with a slope of 57.8 mV per decade and with ...