Automated iodimetric determination of Cu + , Cu 2+ and Cu 3+ in the superconductor YBCO using a modified Gran plot technique

Yperman, J.; Backer, A. De; Vos, A.; Franco, D.; Mullens, J.; Poucke, L. C. Van

doi:10.1016/0003-2670(93)80197-s

Cited by 10 publications

(2 citation statements)

References 14 publications

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“…[CuO] The equivalent point of the titration is in most cases determined visually using starch as the indicator, but potentiometric detection is possible as well [47][48][49].…”

Section: Iodometrymentioning

confidence: 99%

Determination of oxygen content and metal valences in oxide superconductors by chemical methods

Karppinen¹,

Fukuoka

Niinistö³

et al. 1996

Supercond. Sci. Technol.

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Several methods of chemical analysis, for example various redox titrations and thermogravimetric approaches, have been adapted to establish the oxygen content in superconducting cuprates and to determine the higher oxidation states of copper and other mixed-valent metals. The present review discusses and complements the authors' own experimental results on the oxygen content and metal valence analyses, but literature data from about 150 other references are reviewed as well.

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“…[CuO] The equivalent point of the titration is in most cases determined visually using starch as the indicator, but potentiometric detection is possible as well [47][48][49].…”

Section: Iodometrymentioning

confidence: 99%

Determination of oxygen content and metal valences in oxide superconductors by chemical methods

Karppinen¹,

Fukuoka

Niinistö³

et al. 1996

Supercond. Sci. Technol.

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“…The method used here is similar to the Gran plot standard additions method used previously to determine unknown parameters, such as the slope and y-intercept of a calibration curve for the detection and monitoring of ions [43][44][45][46]. The Gran plot standard addition technique also eliminates the need for reference calibration curves [46].…”

Section: Standard Additions Procedures and Analysismentioning

confidence: 99%

Bio-hybrid materials for immunoassay-based sensing of cortisol

Fang

Zhou

Lan

et al. 2009

J Sol-Gel Sci Technol

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Sol-gel encapsulation has been used as the basis for detecting cortisol by an immunoassay approach. Previous research showed that antibodies immobilized in the pores of a sol-gel derived silica were able to bind cortisol and be used as an immunosensor. However, this approach was not effective when measuring cortisol levels in human serum because of interference from other fluorescence sources. The present paper describes a protocol which overcomes these limitations and enables sol-gel immunoassays to effectively measure cortisol in human serum over the physiological range of cortisol blood concentrations in an adult (2-28 lg/dL). The method involves a standard additions approach in which various amounts of cortisol are added to the serum. The cortisol concentration values obtained with our sol-gel immunoassay were typically within 10% of the values obtained by traditional analytical methods. The protocol presented here represents a significant contribution to sol-gel sensing and immunoassays in particular, because of the ability to detect an analyte in human serum. In addition, this work reports the first comparison between results from a sol-gel immunosensor and an alternative immuno-binding method for analyte detection.

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Fully automated potentiometric determination of the free ligand concentration in complexation titrations: the system Ag(I) with N-methylethylenediamine

Garner

Yperman

Mullens

et al. 1993

Analytica Chimica Acta

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Automated iodimetric determination of Cu + , Cu 2+ and Cu 3+ in the superconductor YBCO using a modified Gran plot technique

Cited by 10 publications

References 14 publications

Determination of oxygen content and metal valences in oxide superconductors by chemical methods

Determination of oxygen content and metal valences in oxide superconductors by chemical methods

Bio-hybrid materials for immunoassay-based sensing of cortisol

Fully automated potentiometric determination of the free ligand concentration in complexation titrations: the system Ag(I) with N-methylethylenediamine

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