Kinetic-potentiometric assay of formaldehyde in pharmaceutical and industrial samples, monitored by copper solid ion selective electrode, after its reaction with the copper(II)-bis-(ethylenediamine) complex

 
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2007 (EN)
Kinetic-potentiometric assay of formaldehyde in pharmaceutical and industrial samples, monitored by copper solid ion selective electrode, after its reaction with the copper(II)-bis-(ethylenediamine) complex (EN)

Stergiou, D. V. (EN)

Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας (EL)
Stergiou, D. V. (EN)

A kinetic-potentiometric method is described for the quantitative assay of formaldehyde ( HCHO) in pharmaceutical and industrial preparations. It is based on the reaction of HCHO with ( ethylenediamine)-Cu( II)sulfate [Cu(CH2NH2)(2)(H2O)(2)] center dot SO4. The changes in potential, resulting from the release of the Cu( II) cations, are monitored with a Cu( II)-ion selective electrode. The calibration curve for the HCHO is linear in the concentration range 50 - 250 mg L-1, with a limit of detection of 8.5 mg L-1. The method shows very good reproducibility with an RSD of 2.6% for successive injections (n = 5) of 150 mg L-1 HCHO primary solution, while it is interference free. The method was successfully tested in various industrial and pharmaceutical preparations. (EN)

formaldehyde determination (EN)

Πανεπιστήμιο Ιωαννίνων (EL)
University of Ioannina (EN)

Microchimica Acta (EN)

English

2007

<Go to ISI>://000245888000003

Springer Verlag (Germany) (EN)



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