Determination of urinary fluoride by ion chromatography

Michigami, Yoshimasa; Kuroda, Yoko; Ueda, Kazuyuki; Yamamoto, Yoshikazu

doi:10.1016/0003-2670(93)80479-5

Cited by 88 publications

(30 citation statements)

References 12 publications

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“…At present, the most frequently used techniques for F analysis of samples are gas chromatography [Fresen, 1968], ion chromatography [Michigami et al, 1993;Inoue et al, 1995;Perring and Bourqui, 2002] and the F ion-selective electrode [Frant and Ross, 1966;Gron et al, 1968;Muehlemann, 1969;Iizuka et al, 1970;Clark and Dowdell, 1973;Fagioli et al, 1984;Kissa, 1987;Itai and Tsunoda, 2001;Malde et al, 2001]. The F ion-selective electrode consists of a sensing element bonded into an epoxy body.…”

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confidence: 99%

Development of Gold Standard Ion-Selective Electrode-Based Methods for Fluoride Analysis

et al. 2010

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Background/Aims: Currently available techniques for fluoride analysis are not standardized. Therefore, this study was designed to develop standardized methods for analyzing fluoride in biological and nonbiological samples used for dental research. Methods: A group of nine laboratories analyzed a set of standardized samples for fluoride concentration using their own methods. The group then reviewed existing analytical techniques for fluoride analysis, identified inconsistencies in the use of these techniques and conducted testing to resolve differences. Based on the results of the testing undertaken to define the best approaches for the analysis, the group developed recommendations for direct and microdiffusion methods using the fluoride ion-selective electrode. Results: Initial results demonstrated that there was no consensus regarding the choice of analytical techniques for different types of samples. Although for several types of samples, the results of the fluoride analyses were similar among some laboratories, greater differences were observed for saliva, food and beverage samples. In spite of these initial differences, precise and true values of fluoride concentration, as well as smaller differences between laboratories, were obtained once the standardized methodologies were used. Intraclass correlation coefficients ranged from 0.90 to 0.93, for the analysis of a certified reference material, using the standardized methodologies. Conclusion: The results of this study demonstrate that the development and use of standardized protocols for F analysis significantly decreased differences among laboratories and resulted in more precise and true values.

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confidence: 99%

Development of Gold Standard Ion-Selective Electrode-Based Methods for Fluoride Analysis

et al. 2010

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“…5 -top, we constructed the fluorescence emission ratiometric response based on I (450) /I (546) nm bands, Fig. 5 -bottom 5, and this may be partially due to the data fitting, in light of the non-systematic increase, especially for o-BAQBA shown in Fig. 4 bottom, i.e.…”

Section: Methodsmentioning

confidence: 99%

“…literature published over the last 20 or so years [3][4][5][6][7]. Fluoride is present in biological fluids and tissues and especially in bone and tooth.…”

Section: Introductionmentioning

confidence: 99%

Wavelength–Ratiometric Probes for the Selective Detection of Fluoride Based on the 6-Aminoquinolinium Nucleus and Boronic Acid Moiety

Badugu

Lakowicz

Geddes

2004

Journal of Fluorescence

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Herein we report a set of new water-soluble fluorescent probes (N -boronobenzyl-6-aminoquinolinium bromides, BAQBAs) sensitive to aqueous fluoride. These probes shows spectral shifts and intensity changes in the presence of fluoride, in a wavelength ratiometric and colorimetric manner, enabling the detection of fluoride concentrations at visible wavelengths, in the concentration range ≈1-300 mM. Although the sensing mechanism is different for fluoride as compared to the other halides, we have tested the utility of these probes towards the other halides, and the results reveal that the BAQBAs are in fact potential candidates towards the sensing of the all the halides, but in different concentration ranges. As the probes are based on the boronic acid moiety, which is a well-known fluoride and sugar chelator group, we have investigated the response of sugars (such as glucose and fructose, which are present in biological fluids and foodstuffs) as interferences in fluoride detection using these probes. Interestingly, the BAQBAs show a suppressed sugar response potentially allowing for the predominant fluoride sensitivity. In addition to physiological sugars, we also have assessed the response of aqueous halides as potential interferents, or indeed analytes to be sensed, and show that the new boronic acid containing probes respond well to aqueous fluoride in the presence of a high background of other species, such as in a biological cocktail of 50 mM Glucose, 50 mM aqueous Chloride and 5 mM Fructose.

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“…Commonly, such sensors offer many advantages such as high sensitivity and simplicity, especially for real-time and on-line analysis of analytes [6,7]. Anions are widely found in the environmental and biological systems, as exemplified by fluoride, which is commonly used in dental care applications and exhibits inhibition of certain enzyme functions [8]; however, overexposure to fluoride can also result in the most widespread side effect of fluoride (fluorosis) [9] which induces nephrotoxic changes in both humans and animals and leads to urolithiasis [10]. Acetate ion has been found to be a possible tracer for malignancies and has been extensively investigated in prostate cancer and its metastases [11].…”

Section: Introductionmentioning

confidence: 99%

A novel colorimetric and fluorescence anion sensor with a urea group as binding site and a coumarin group as signal unit

Shao

2010

Dyes and Pigments

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Determination of urinary fluoride by ion chromatography

Cited by 88 publications

References 12 publications

Development of Gold Standard Ion-Selective Electrode-Based Methods for Fluoride Analysis

Development of Gold Standard Ion-Selective Electrode-Based Methods for Fluoride Analysis

Wavelength–Ratiometric Probes for the Selective Detection of Fluoride Based on the 6-Aminoquinolinium Nucleus and Boronic Acid Moiety

A novel colorimetric and fluorescence anion sensor with a urea group as binding site and a coumarin group as signal unit

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