Recent Developments in Methods of Analysis for Fluoride Determination

Yahyavi, Hossein; Kaykhaii, Massoud; Mirmoghaddam, Majid

doi:10.1080/10408347.2014.985814

Cited by 48 publications

(25 citation statements)

References 129 publications

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“…To meet the above goal, several analytical methods have been developed for uoride detection, including 19 F NMR analysis, mass spectrometry, and atomic absorption spectrophotometry, standard Willard and Winter methods, uoride selective electrodes, and ion chromatography. 43,44 However, these instrumental analyses require expensive equipment, complicated procedures, and skilled operators, making these methods not affordable for on-site or point-of-care (POC) application. 43 Besides, uoride selective electrodes are easily affected by temperature, interfering ions, color of the sample, shi potential, and ion activity, and require skilled operators to ensure accuracy.…”

Section: Introductionmentioning

confidence: 99%

A highly sensitive and selective fluoride sensor based on a riboswitch-regulated transcription coupled with CRISPR-Cas13a tandem reaction

Mou

Yan

et al. 2021

Chem. Sci.

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Section: Introductionmentioning

confidence: 99%

A highly sensitive and selective fluoride sensor based on a riboswitch-regulated transcription coupled with CRISPR-Cas13a tandem reaction

Mou

Yan

et al. 2021

Chem. Sci.

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“…Fluorine is a common element that widely exists in the Earth's crust in the form of fluorides, such as fluorite (CaF 2 ), cryolite (Na 3 AlF 6 ) and fluorapatite (Ca 5 (PO 4 ) 3 F 1 . The fluorine ion can substitute the hydroxyl group of the minerals in tooth tissue to form an insoluble fluorine‐containing salt, which repairs tooth enamel and enhances resistance to caries 2 . Meanwhile, excessive fluoride intake can lead to human poisoning, 3 and there is a small gap between a safe dose and a harmful one 4 .…”

Section: Introductionmentioning

confidence: 99%

Determination of trace fluoride in water samples by silylation and gas chromatography/mass spectrometry analysis

Chen

Wang

et al. 2021

Rapid Comm Mass Spectrometry

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Rationale Due to the ubiquity of fluorides and the small gap between a safe dose and a harmful one, it is necessary to develop a robust analytical method for determination of fluoride ions in various water samples with complex matrices. Methods Silylation of the fluoride ion was carried out by treatment with hydrochloric acid and phenyldimethylchlorosilane at room temperature. The formed phenyldimethylfluorosilane was detected by gas chromatography/mass spectrometry (GC/MS). Results Under the optimized conditions, linearity in the analytical method ranged from 0.050 to 5.0 μg/mL for the fluoride ion with R2 >0.9999. Reasonable reproducibility was obtained with the intraday relative standard deviation (RSD) (N = 5) of 2.04% and interday RSD (N = 5) of 3.75% at the concentration of 0.10 μg/mL. The developed method has been successfully applied to determine the fluoride ion in real water samples, including waste water samples, with the recovery between 81.12% and 113.04%. Conclusions A robust method for the determination of the fluoride ion has been developed by silylation with phenyldimethylchlorosilane and GC/MS analysis. The established method showed good anti‐interference and precision, and it has been applied for determination of the fluoride ion in various water samples.

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“… 19 , 20 Many analytical methodologies and techniques have been used for the detection of F – , such as inductively coupled plasma optical spectrometry, 11 19 F-NMR, 1 , 21 ion-selective electrodes, 22 ion chromatography, 23 atomic absorption spectrometry (AAS), gas chromatography-mass spectrometry (GC–MS), 24 etc. 25 However, some of the above approaches need complicated and expensive instrumentation, procedures, and/or long-term analysis. On the other hand, fluorescent sensors, especially based on metal–organic frameworks (MOFs), have offered many advantages and unique properties of high sensitivity, superselectivity, lower detection, and quantification limits and can also be used for anion live cell imaging.…”

Section: Introductionmentioning

confidence: 99%

Selective and Fast Detection of Fluoride-Contaminated Water Based on a Novel Salen-Co-MOF Chemosensor

Alhaddad

El‐Sheikh

2021

ACS Omega

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The development of selective and fast optical sensitive chemosensors for the detection and recognition of different cations and anions in a domain is still a challenge in biological, industrial, and environmental fields. Herein, we report a novel approach for the detection and determination of fluoride ion (F – ) sensing based on a salen-cobalt metal-organic framework (Co(II)-MOF). By a simple method, the Co(II)-MOF was synthesized and characterized using several tools to elucidate the structure and morphology. The photoluminescence (PL) spectrum of the Co(II)-MOF (100.0 nM/L) was examined versus different ionic species like F – , Br – , Cl – , I – , SO 4 2– , and NO 3 – and some cationic species like Mg 2+ , Ca 2+ , Na + , and K + . In the case of F – ions, the PL intensity of the Co(II)-MOF was scientifically enhanced with a remarkable red shift. With the increase of F – concentration, the Co(II)-MOF PL emission spectrum was also professionally enhanced. The limit of detection (LOD) for the Co(II)-MOF chemosensor was 0.24 μg/L, while the limit of quantification (LOQ) was 0.72 μg/L. Moreover, a comparison of the Co(II)-MOF optical approach with other published reports was studied, and the mechanism of interaction was also investigated. Additionally, the applicability of the current Co(II)-MOF approach in different real water samples, such as tap water, drinking water, Nile River water, and wastewater, was extended. This easy-to-use future sensor provides reliable detection of F – in everyday applications for nonexpert users, especially in remote rural areas.

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Recent Developments in Methods of Analysis for Fluoride Determination

Cited by 48 publications

References 129 publications

A highly sensitive and selective fluoride sensor based on a riboswitch-regulated transcription coupled with CRISPR-Cas13a tandem reaction

A highly sensitive and selective fluoride sensor based on a riboswitch-regulated transcription coupled with CRISPR-Cas13a tandem reaction

Determination of trace fluoride in water samples by silylation and gas chromatography/mass spectrometry analysis

Selective and Fast Detection of Fluoride-Contaminated Water Based on a Novel Salen-Co-MOF Chemosensor

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