A. Boveiri Monji and H. Yousefnia and S. Zolghadri and B. Salimi
A Comparison between Reagents Extracted from Tree Leaves for Spectrophotometric Determination of Hafnium(IV)
120 - 123
2018
12
3
International Journal of Chemical and Molecular Engineering
https://publications.waset.org/pdf/10008656
https://publications.waset.org/vol/135
World Academy of Science, Engineering and Technology
The main goal of this paper was to make use of green reagents as a substitute of perilous synthetic reagents and organic solvents for spectrophotometric determination of hafnium(IV). The extracts taken from six different kinds of tree leaves including Acer negundo, Ficus carica, Cerasus avium, Chimonanthus, Salix babylonica and Pinus brutia, were applied as green reagents for the experiments. In 6M hydrochloric acid, hafnium reacted with the reagent to form a yellow product and showed maximum absorbance at 421 nm. Among tree leaves, Chimonanthus showed satisfactory results with a molar absorptivity value of 0.61 × 104 l mol1 cm1 and the method was linear in the 0.39 µg mL 1 concentration range. The detection limit value was 0.064 µg mL1. The proposed method was simple, low cost, clean, and selective.
Open Science Index 135, 2018