Flow injection potentiometric determination of saccharin in dietary products using a tubular ion-selective electrode

Fatibello‐Filho, Orlando; Aniceto, Clezio

doi:10.1002/(sici)1098-2728(1999)11:4<234::aid-lra9>3.0.co;2-a

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…17 The construction of a hydrogen ion-selective potentiometric electrode based on a tridodecylamine ionophore dispersed in a poly(vinylchloride) (PVC) membrane, 18,19 or poly(1-aminoanthracene) films 20 has been described. In addition, Rodwedder et al 21 and Fatibello and co-workers [22][23][24][25] have shown the use of coated graphite epoxy ion selective electrodes for determinaton of cations using ion-pair formation with tricaprylylmethylammonium cation in a PVC matrix. Using a similar system with incorporation of saccharinate anion and toluidine, Rover et al 26 have described the construction of a tubular ion selective electrode useful for determination of saccharin.…”

Section: Potentiometric Sensorsmentioning

confidence: 99%

Electrochemical sensors: a powerful tool in analytical chemistry

Stradiotto¹,

Yamanaka²,

Zanoni³

2003

J. Braz. Chem. Soc.

335

154

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Sensores potenciométricos, amperométricos e condutométricos são sensores eletroquímicos com imensa aplicação nas áreas de meio ambiente, indústria e análises clínicas. O presente trabalho apresenta uma revisão generalizada dos aspectos fundamentais, os desenvolvimento e a contribuição destes sensores na área de química analítica, e reporta alguns aspectos relevantes dos avanços na área de sensores eletroquímicos no Brasil.Potentiometric, amperometric and conductometric electrochemical sensors have found a number of interesting applications in the areas of environmental, industrial, and clinical analyses. This review presents a general overview of the three main types of electrochemical sensors, describing fundamental aspects, developments and their contribution to the area of analytical chemistry, relating relevant aspects of the development of electrochemical sensors in Brazil.

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Section: Potentiometric Sensorsmentioning

confidence: 99%

Electrochemical sensors: a powerful tool in analytical chemistry

Stradiotto¹,

Yamanaka²,

Zanoni³

2003

J. Braz. Chem. Soc.

335

154

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“…The hydrophobic membrane is permeable to gases and impermeable to liquids. In some sensors, additional electrodes -reference electrodes -are used to increase sensitivity [18][19][20][21].…”

Section: Fig1 Construction Of An Electrochemical Sensormentioning

confidence: 99%

Effects of interfering gases in electrochemical sensors NH₃ and NO₂

Majder–Łopatka

2018

MATEC Web Conf.

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Electrochemical sensors used for toxic gas measurement. In this paper construction EC sensor and principle of operation has been described. The results of research on the influence of interfering gases on the readings of detectors containing ammonia and nitric oxide (IV) electrochemical sensors are presented. Span gases were used in the tests: 100 ppm CO, 25 ppm H2S, 25 ppm NH3, 10 ppm NO, 25 ppm NO2, 10 ppm Cl2, 10 ppm HCN, 10 ppm HCl, 2% vol. H2, 2.5% by volume CH4, 0.35% by volume of C5H12. The conducted research indicates that the presence of chlorine, hydrogen chloride, hydrogen cyanide, carbon monoxide and saturated hydrocarbons in the atmosphere does not affect the work of the ammonia electrochemical sensor. In the case of this sensor, there was a significant cross effect in relation to hydrogen sulphide and hydrogen. The administration of these substances indicated the presence of ammonia outside the measuring range (200 ppm). In the measurements using the NO2 sensor, in most cases negative interference was found. The test results indicate that the measurements made with electrochemical sensors may be subject to error in the presence of interfering gases. The results obtained may be both understated and overstated.

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