Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

Reach Us reach to JOCPR whatsapp-JOCPR +44 1625708989
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Original Articles: 2011 Vol: 3 Issue: 3

A chelating reagent, 2, 3, 4-trihydroxy acetophenoneoxime(THAPO) used for selective and sensitive kinetic spectrophotometric determination of thorium(IV) from ores


A complexing agent, 2,3,4-trihydroxyacetophenoneoxime (THAPO) was prepared and developed a selective and sensitive kinetic direct spectrophotometric method for the determination of thorium(IV). The method sensitivity is calculated in terms of molar absorptivity (3.179 x104 L mo1-1 cm-1) and Sandell’s sensitivity (0.0073 μg cm-2), which explains that the method is more sensitive. The developed method is more precise and accuracy, which is found by standard deviation (0.0014), relative standard deviation(0.52%), absolute error(0.00057) and confidence limit(± 0.27). The metal and ligand forms 1:1(M:L) complex and its stability constant is calculated by Asumu’s and Edmonds and Birnbaum's method. This developed method was applied for the determination of thorium (IV) from thorite ore and checked the validity of the method by comparing the obtained results with AAS method.

rtp slot demo