On-line removal of sulfide interference in phosphate determination by flow injection analysis

• Main Authors: Michael Grace, Yuthapong Udnan, Ian McKelvie, Jaroon Jakmunee, Kate Grudpan
• Format: Journal
• Published: 2018
• Subjects: Chemistry; Earth and Planetary Sciences; Environmental Science
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33644760506&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/61584
• Institution: Chiang Mai University

Simple on-line sulfide removal using potassium permanganate (KMnO 4) was incorporated into a spectrophotometric flow injection (FI) system for phosphate determination using molybdenum blue with ascorbic acid as the reductant. Excess KMnO 4 was reduced before the sample zone passed through the detect...