Determination of Ni(II) with picolinaldehyde-4-phenyl-3-thiosemicarbazone used as a chromogenic reagent in a nonionic micellar system

Authors : Aamna BALOUCH, Muhammad Iqbal BHANGER, Farah Naz TALPUR

Pages : 925-937

Doi:10.3906/sag-1208-98

View : 17 | Download : 13

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Spectrophotometric determination of Niinsert ignore into journalissuearticles values(II); was carried out using picolinaldehyde-4-phenyl-3-thiosemicarbazone insert ignore into journalissuearticles values(PAPT); as a complexing/chromogenic reagent. The possibility of using a micellar system was explored to enhance the degree of detection and allow a more sensitive spectrophotometric method for the determination of nickel ions. The anionic surfactant Triton X-100 greatly enhanced the molar absorptivity and limit of detection relative to that observed with bulk water or an organic solvent. The linear calibration graphs were obtained for 0.5-2.0 mg L-1 and 0.001-1.0 mg L-1 of Niinsert ignore into journalissuearticles values(II); in aqueous and surfactant media, respectively. Using this approach, the limit of detection for the PAPT-Niinsert ignore into journalissuearticles values(II); complex insert ignore into journalissuearticles values(based on 3 s of blank absorbance/slope); was found to be 0.0008 mg L-1 with a micellar enhancement reagent. The interference from over 50 cations, anions, and complexing agents was studied at 0.50 mg L-1 of Niinsert ignore into journalissuearticles values(II);; most metal ions can be tolerated in considerable amounts in aqueous micellar solutions.
Keywords : Spectrophotometry, surfactant, Ni II, PAPT