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Pregled bibliografske jedinice broj: 12752

Monoethyl-a-anilinobenzylphosphonic acid as a potential analytical reagent


Allegretti-Živčić, Vlasta
Monoethyl-a-anilinobenzylphosphonic acid as a potential analytical reagent // XV. Meeting of Croatian Chemists and Chemical Engineers: abstracts / Gojo, Miroslav ; Trajkov, Nada ; Smolec, Sonja (ur.).
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa, 1997. str. 215-215 (poster, domaća recenzija, sažetak, znanstveni)


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Naslov
Monoethyl-a-anilinobenzylphosphonic acid as a potential analytical reagent

Autori
Allegretti-Živčić, Vlasta

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
XV. Meeting of Croatian Chemists and Chemical Engineers: abstracts / Gojo, Miroslav ; Trajkov, Nada ; Smolec, Sonja - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa, 1997, 215-215

Skup
XV. hrvatski skup kemičara i kemijskih inženjera

Mjesto i datum
Opatija, Hrvatska, 24-26.03.1997

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
analytical reagent ; monoethyl-a-anilinobenzylphosphonic acid

Sažetak
Monoethyl-a-anilinobenzylphosphonic acid (HEt) is one among previously prepared similar compounds. It is soluble in water and in different organic solvents. Its proper-ties in solution indicate the possibility of its application as an analytical reagent. The reagent is applied to study the possibilities of spectrophotometric and spectro-fluorometric determination of tungsten(VI) and molybdenum(VI) in aqueous solutions. Absorption maxima of HEt appear at 243 nm and 290 nm, with molar absorbtivity val-ues of 1.32x104 l mol-1 cm-1 and 1.34x103 l mol-1 cm-1, respectively. Both metal ions form complex species with HEt, effecting the appearance of absorbance spectra. Measuring UV spectra of metal(VI)-HEt systems against the blank solution results in the appearance of new maxima, whereas the position of the absorbance maximum at 290 nm remains unchanged, and the one at 243 nm changes it's characteristics. Tung-sten(VI)-HEt solutions absorb at 276 nm having the molar apsorptivity 2.33x103 l mol-1 cm-1, whereas species formed in the molybdenum(VI)-HEt systems absorb at 260 nm with molar apsorptivity value of 1.90x103 l mol-1 cm-1. The conditions for the spectro-photometric determination depend upon concentrations of all components, as well as upon the acidity of measured systems. Differences in relative fluorescence intensities, comparing the reagent fluorescence spectra with those of metal(VI)-HEt systems, indicate the existence of metal complex species and the possibility of their spectro-fluorometric study. Monoethyl-a-anilinobenzylphosphonic acid, although previously not applied as an analytical reagent, reacts with metal ions opening therewith broad possibilities for metal ions determination in aqeous solutions.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
119410

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb


Citiraj ovu publikaciju:

Allegretti-Živčić, Vlasta
Monoethyl-a-anilinobenzylphosphonic acid as a potential analytical reagent // XV. Meeting of Croatian Chemists and Chemical Engineers: abstracts / Gojo, Miroslav ; Trajkov, Nada ; Smolec, Sonja (ur.).
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa, 1997. str. 215-215 (poster, domaća recenzija, sažetak, znanstveni)
Allegretti-Živčić, V. (1997) Monoethyl-a-anilinobenzylphosphonic acid as a potential analytical reagent. U: Gojo, M., Trajkov, N. & Smolec, S. (ur.)XV. Meeting of Croatian Chemists and Chemical Engineers: abstracts.
@article{article, author = {Allegretti-\v{Z}iv\v{c}i\'{c}, Vlasta}, year = {1997}, pages = {215-215}, keywords = {analytical reagent, monoethyl-a-anilinobenzylphosphonic acid}, title = {Monoethyl-a-anilinobenzylphosphonic acid as a potential analytical reagent}, keyword = {analytical reagent, monoethyl-a-anilinobenzylphosphonic acid}, publisher = {Hrvatsko dru\v{s}tvo kemijskih in\v{z}enjera i tehnologa}, publisherplace = {Opatija, Hrvatska} }
@article{article, author = {Allegretti-\v{Z}iv\v{c}i\'{c}, Vlasta}, year = {1997}, pages = {215-215}, keywords = {analytical reagent, monoethyl-a-anilinobenzylphosphonic acid}, title = {Monoethyl-a-anilinobenzylphosphonic acid as a potential analytical reagent}, keyword = {analytical reagent, monoethyl-a-anilinobenzylphosphonic acid}, publisher = {Hrvatsko dru\v{s}tvo kemijskih in\v{z}enjera i tehnologa}, publisherplace = {Opatija, Hrvatska} }




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