Detail publikace

IMPROVED FLUORIMETRIC DETERMINATION OF Al, Ga AND In BY MICELLE ENHANCED 8-HYDROXYQUINOLINE -5-SULPHONIC ACID COMPLEX

VOJTA, Š. SOMMER, L.

Originální název

IMPROVED FLUORIMETRIC DETERMINATION OF Al, Ga AND In BY MICELLE ENHANCED 8-HYDROXYQUINOLINE -5-SULPHONIC ACID COMPLEX

Typ

audiovizuální tvorba

Jazyk

angličtina

Originální abstrakt

The enhancement (sensitization) of fluorescent reactions of metal ions with chelating dyes by the presence of surfactants provides an inexpensive alternative to fluorimetric methods, when determination of lower concentrations of elements is required. The complexes formed in micellar media are often characterized by high molar absorptivities, high stability over a wide pH range, and usually by large bathochromic shift caused by addition of surfactants to the binary complex formed in water. Moreover, some fluorescent binary chelates may dramatically increase their quantum yield in micellar media, providing exceptionally sensitive fluorimetric methods. The 8-hydroxyquinoline-5-sulphonic acid (QSA) should provide surfactant-sensitized reactions with Al(III), Ga(III) and In(III), because it is strong acid readily yielding a negatively charged group (sulphonate) to interact with the positive head of cationic surfactants. The importance of monitoring aluminium concentrations in the blood of patients undergoing haemodialysis has been realised because of the suspicion that aluminium intoxication is responsible for encephalopathy, oesteopathy and Alzheimer's disease. In this work, the influence of various surfactants on the reaction of QSA with Al, Ga and In is studied in details. Improved method of determination of Al, Ga, In by QSA in presence of cationic surfactant Zephyramine is brought and optimized.

Klíčová slova

Fluorimetry, Aluminium, Gallium, Indium, Determination, 8-hydroxyquinoline-5-sulphonic acid, Tenzide

Autoři

VOJTA, Š.; SOMMER, L.

Vydáno

24. 10. 2006

Nakladatel

Vysoké učení technické v Brně, Fakulta chemická

Místo

Brno, Czech Republic

ISBN

80-214-3321-3

Kniha

Sborník příspěvků soutěže Studentské tvůrčí činnosti „STUDENT 2006” a doktorské soutěže „O cenu děkana 2005 a 2006”

Edice

Sborník příspěvků

Číslo edice

1

Strany od

243

Strany do

248

Strany počet

6

URL

http://www.fch.vutbr.cz

BibTex

@misc{BUT63717,
  author="Šimon {Vojta} and Lumír {Sommer}",
  title="IMPROVED FLUORIMETRIC DETERMINATION OF Al, Ga AND In BY MICELLE ENHANCED 8-HYDROXYQUINOLINE -5-SULPHONIC ACID COMPLEX",
  booktitle="Sborník příspěvků soutěže Studentské tvůrčí činnosti „STUDENT 2006” a doktorské soutěže „O cenu děkana 2005 a 2006”",
  year="2006",
  series="Sborník příspěvků",
  edition="1",
  pages="243--248",
  publisher="Vysoké učení technické v Brně, Fakulta chemická",
  address="Brno, Czech Republic",
  isbn="80-214-3321-3",
  url="http://www.fch.vutbr.cz",
  note="presentation"
}