New turn on fluorimetric sensor for direct detection of ultra-trace ferric ions in industrial wastewater and its application by test strips

Kamel, Rasha M.; El-Sakka, Sahar S.; Bahgat, Khaled; Monir, Marina R.; Soliman, M. F.

doi:10.1016/j.jphotochem.2021.113218

Cited by 12 publications

(2 citation statements)

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“…In such instances, a sample of soil, previously weighed, must be properly extracted with a known volume of deionized water and then a drop of the solution is poured onto the pad of the dipstick. Another new method based on fluorimetric sensors applied as test strips enables the identification of ultra-micro-traces of ferric ions in wastewater [ 256 ].…”

Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

Spot tests: past and present

Doménech‐Carbó

2021

ChemTexts

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Graphic abstract Microchemistry, i.e., the chemistry performed at the scale of a microgram or less, has its roots in the late eighteenth and early nineteenth centuries. In the first half of the twentieth century a wide range of spot tests have been developed. For didactic reasons, they are still part of the curriculum of chemistry students. However, they are even highly important for applied analyses in conservation of cultural heritage, food science, forensic science, clinical and pharmacological sciences, geochemistry, and environmental sciences. Modern pregnancy tests, virus tests, etc. are the most recent examples of sophisticated spot tests. The present ChemTexts contribution aims to provide an overview of the past and present of this analytical methodology.

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Section: Spot Tests In Practice: Past and Present Of This Classical Methodsmentioning

confidence: 99%

Spot tests: past and present

Doménech‐Carbó

2021

ChemTexts

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“…Fluorimetric sensing systems have been widely used for the determination of different metal ions due to their high sensitivity, selectivity, rapidity and simplicity [18,19]. Highly sensitive fluorimetric analysis of aluminium is mainly based on the formation of fluorescent complexes with different reagents including morin [20,21], lumogallion [22], 8-hydroxyquinoline [23] and different Schiff bases synthesized in the laboratory [24,25].…”

Section: Introductionmentioning

confidence: 99%

Chamotte Clay: A Natural Adsorbent for Separation and Preconcentration of Aluminium

İlktaç

2023

Erzincan Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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The adsorption behavior of aluminium ions on chamotte clay has been studied in this study. Chamotte clay has been used for the first time for determination of trace levels of aluminium in aqueous solutions. Quantitative adsorption and recovery of aluminium were both rapid and reached an equilibrium in 30 minutes. Aluminium was detected based on the formation of the highly fluorescent Al(III)-morin complex. Two linear calibration graphs were obtained in the range of 0.5-10 µg L-1 and 10-100 µg L-1 with the detection limits of 0.12 µg L-1 and 1.12 µg L-1, respectively. Chamotte clay was characterized by scanning electron microscope coupled with energy-dispersive X-ray spectroscopy, energy dispersive X-ray fluorescence and X-ray photoelectron spectroscopy techniques. Different isotherm models were evaluated and the results showed that the adsorption study was fitted to Freundlich isotherm and a favorable and multilayer adsorption of aluminium was occurred on the heterogeneous surface of the chamotte clay. Thermodynamic and kinetic parameters of aluminium adsorption were also investigated. Various experimental parameters were optimized and the method has been applied to tap and bottled drinking water samples and quantitative recoveries were obtained. The results demonstrated that the chamotte clay, as a natural clay, was expected to be a promising adsorbent for the determination and preconcentration of the trace levels of analyte in real samples.

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