Direct quantification of a trace amount of iron (III) by using room-temperature fluorescence excitation-emission matrix spectroscopy
Keywords:
fluorescence spectrometer, azo fluorescent reagent, iron ions IIIAbstract
In this research, the organ fluorescent reagent was used. 4 (4-sulphophenylazo) pyrogallol Prepared by the method of forming diazonium salt in an acidic medium by coupling the compound sulfadiazine with the compound pyrogallol, which is a solid substance with a brown color and a melting point of 167–165 C. The reagent (4-SPAP) was determined by fluorescence spectrometry, and the excitation and emission spectra were determined at room temperature by using maximum wavelength emission of 320 nm and excitation of 276 nm. With its high sensitivity, simplicity, and low cost compared to other analytical techniques, this technique was used to estimate and reagent some metal ions. This technique is widely employed for the selective reagent of metal ions. It was determined that the detector's limit of detection (LOD) and limit of quantification (LOQ) are both 110.1031 ppb (equal to 367.0103 ppb).
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