Fluorine ion selective electrode for microdetermination of fluorine in organic compounds

Chang-Yi, Wang

doi:10.1016/0026-265x(82)90001-7

Cited by 7 publications

(2 citation statements)

References 19 publications

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“…The millivolt values of the C, Csmple, and 1OC concentrations were measured (Ec, Esmple, and EIK, respectively) [5]. During all measurements, a magnetic stirrer was used to stir the solution at a slow, constant rate.…”

Section: Sample Determinationmentioning

confidence: 99%

A new sensor for the determination of nicotine in tobacco products

Kang

Wang

1990

Electroanalysis

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A new nicotine sensor for the simple, rapid determination of nicotine in tobacco products without prior separation is described. The sensor is a coated graphite electrode with silicotungstic acid as the active material in polyvinyl chloride with di(2-ethylhexyl) phthalate as the plasticizer. At pH 5.5-6.0, it provides a Nernstian response to nicotine over lo-' to the average slope is 58 mV/pN. The analytical recovery is 98.1 to 102.3%. Satisfactory results are obtained in comparison with silicotungstate gravimetric method and W spectrometry. M; the detection limit is 7.4 X lo-' M, and 1040-0397/90/$1 .OO+ 25 81

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Section: Sample Determinationmentioning

confidence: 99%

A new sensor for the determination of nicotine in tobacco products

Kang

Wang

1990

Electroanalysis

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“…Thermal power plant workers may be exposed to high levels of cryolite in the air if their work involves certain machinery; in addition, workers in air transportation, medical and other health services, textile and metal manufacturing, or petroleum and coal production may be exposed to fluoride [15] – [19] . Workers in these types of jobs may breathe in levels as high as 2.5 milligrams of fluoride per cubic meter (mg/ \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{upgreek} \usepackage{mathrsfs} \setlength{\oddsidemargin}{-69pt} \begin{document} }{}$\text{m}^{3})$ \end{document} of air.…”

Section: Introductionmentioning

confidence: 99%

Vigorous Appraisal of Fluoride on Industrial Proponent in Thermal Power Plant over Anthropoid Biosphere Using F⁻Ion-Selective Electrode

Pandey

Kumar

Yadav

et al. 2015

IEEE J. Transl. Eng. Health Med.

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This study was conducted to analyze the impact of fluoride in the anthropogenic condition in an industrial region promoting and affecting the health of the workers. Fluoride is toxic to humans in high concentrations, such as can occur in persons working in fluoride-containing mineral industries like aluminum industries. When workers are exposed to fluoride-containing minerals, they can suffer from a variety of health problems, such as dental disease. This paper presents the relationship of different clinical conditions correlated against the fluoride level. Contributing clinical aspects, such as morbidity, dysentery, overcrowding, and skin disease, are also studied to assess the consequences of fluoride upon consistent exposure. The relationship between pH and hardness of water with fluoride was measured, and then spatial maps were generated. The investigations resulted in a conclusion that hardness of water had a more pronounced impact on the level of fluoride concentration as compared with pH. Water with more hardness contains more fluoride concentration (25 mg/ml) as compared with soft water (4 mg/ml). This paper also revealed the concentration of fluoride content in the bodies of aluminum plant workers, which varied from 0.06 to 0.17 mg/L of blood serum in the case of pot room workers and 0.01 to 0.04 mg/L in the case of non-pot room workers. In fingernails, it varied from 0.09 to 3.77 mg/L and 0.39 to 1.15 mg/L in the case of pot room and non-pot room workers, respectively. In urine, it varied from 0.53 to 9.50 mg/L in pot room workers and 0.29 to 1.80 mg/L in non-pot room workers. This paper concluded that water was safe for drinking purposes if it has a low hardness (60–140 mg/ml) and pH (7.1–7.4).

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The research of air pollution based on spectral features in leaf surface of Ficus microcarpa in Guangzhou, China

Wang

et al. 2007

Environ Monit Assess

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Nowadays development of industry and traffic are the main contributor to city air pollution in the city of GuangZhou, China. Conventional methods for investigating atmosphere potentially harmful element pollution based on sampling and chemical analysis are time and labor consuming and relatively expensive. Reflectance spectroscopy within the visible-near-infrared region of vegetation in city has been widely used to predict atmosphere constituents due to its rapidity, convenience and accuracy. The objective of this study was to examine the possibility of using leaves reflectance spectra of vegetation as a rapid method to simultaneously assess pollutant (S, Cd, Cu, Hg, Pb, XCl, XF) in the atmosphere of the Guangzhou area. This article has studied the spectral features of polluted leaf surface of Ficus microcarpa in 1985 and 1998. According to the analysis, comprehensive assessment for the change of atmospheric condition and degrees of pollution were given. This conclusion was confirmed by the monitored data got from chemical analysis. Future study with real remote sensing data and field measurements were strongly recommended.

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Fluorine ion selective electrode for microdetermination of fluorine in organic compounds

Cited by 7 publications

References 19 publications

A new sensor for the determination of nicotine in tobacco products

A new sensor for the determination of nicotine in tobacco products

Vigorous Appraisal of Fluoride on Industrial Proponent in Thermal Power Plant over Anthropoid Biosphere Using F⁻Ion-Selective Electrode

The research of air pollution based on spectral features in leaf surface of Ficus microcarpa in Guangzhou, China

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Fluorine ion selective electrode for microdetermination of fluorine in organic compounds

Cited by 7 publications

References 19 publications

A new sensor for the determination of nicotine in tobacco products

A new sensor for the determination of nicotine in tobacco products

Vigorous Appraisal of Fluoride on Industrial Proponent in Thermal Power Plant over Anthropoid Biosphere Using F−Ion-Selective Electrode

The research of air pollution based on spectral features in leaf surface of Ficus microcarpa in Guangzhou, China

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Vigorous Appraisal of Fluoride on Industrial Proponent in Thermal Power Plant over Anthropoid Biosphere Using F⁻Ion-Selective Electrode