Chapter 8 Electroanalytical techniques: Principles and applications

Dick, James G.

doi:10.1016/s0167-9244(97)80017-0

Cited by 1 publication

(2 citation statements)

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“…The term "ionselective electrode" is normally used for all potentiometric measuring electrodes that are capable of providing data related to the concentration (activity) of a particular chemical ion or species [146]. In the commonest use of the ISE arrangement, membranes are made of glass, water-insoluble precipitate, or polymeric films loaded with water-immiscible liquid, an organic ion exchanger, and a complexing agent (liquid membrane electrodes) [147].…”

Section: Electroanalytical Methodsmentioning

confidence: 99%

“…Electrochemical detection using different techniques has been performed for the direct determination of halogens in biological samples [73,146] or coupled with IC [106]. The commonest electrochemical technique is amperometry, where the current in the working electrode is measured as a function of time according to the analyte concentration [148].…”

Section: Electroanalytical Methodsmentioning

confidence: 99%

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Analytical methods for the determination of halogens in bioanalytical sciences: a review

et al. 2013

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Fluorine, chlorine, bromine, and iodine have been studied in biological samples and other related matrices owing to the need to understand the biochemical effects in living organisms. In this review, the works published in last 20 years are covered, and the main topics related to sample preparation methods and analytical techniques commonly used for fluorine, chlorine, bromine, and iodine determination in biological samples, food, drugs, and plants used as food or with medical applications are discussed. The commonest sample preparation methods, as extraction and decomposition using combustion and pyrohydrolysis, are reviewed, as well as spectrometric and electroanalytical techniques, spectrophotometry, total reflection X-ray fluorescence, neutron activation analysis, and separation systems using chromatography and electrophoresis. On this aspect, the main analytical challenges and drawbacks are highlighted. A discussion related to the availability of certified reference materials for evaluation of accuracy is also included, as well as a discussion of the official methods used as references for the determination of halogens in the samples covered in this review.

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Section: Electroanalytical Methodsmentioning

confidence: 99%