A rapid and sensitive spectrofluorometric method for the determination of Au(III) based on fluorescence quenching of a 1,3,5-triphenyl-2-pyrazoline

Abstract

A simple, rapid, sensitive, and low-cost spectrofluorometric method was developed for the determination

Synthesis and analytical applications of thiosemicarbazide derivative

“…The stability constant of complex was calculated according to the known procedure [32]. A kind of standard addition method [33][34][35][36][37] was used to determine Fe 3+ in the spiked sand-soil reference material with OBS The IR spectra of the compound have C=O, C=S and N-H stretching bands of thiosemicarbazide group at 1641 cm -1 , 1242 cm -1 and 330, 3220 cm -1 , respectively. In the 1 H-NMR spectra, resonances assigned to the three N-H protons of the compound were detected at 9.95 and 10.01 ppm (s, 2H, NHCSMH) and 10.48 ppm (s, 1H, NH-C=O) respectively.…”