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Fluorlmetric deterimination of methyl paraoxon

Zdenka Skurić ; Škola narodnog zdravlja »Andrija Štampar«, Medicinski fakultet Sveučilišta, Zagreb

Puni tekst: hrvatski, pdf (7 MB) str. 3-9 preuzimanja: 81* citiraj
APA 6th Edition
Skurić, Z. (1965). Fluorometrijsko određivanje metil-paraoksona. Arhiv za higijenu rada i toksikologiju, 16 (1), 3-9. Preuzeto s https://hrcak.srce.hr/179401
MLA 8th Edition
Skurić, Zdenka. "Fluorometrijsko određivanje metil-paraoksona." Arhiv za higijenu rada i toksikologiju, vol. 16, br. 1, 1965, str. 3-9. https://hrcak.srce.hr/179401. Citirano 27.02.2021.
Chicago 17th Edition
Skurić, Zdenka. "Fluorometrijsko određivanje metil-paraoksona." Arhiv za higijenu rada i toksikologiju 16, br. 1 (1965): 3-9. https://hrcak.srce.hr/179401
Harvard
Skurić, Z. (1965). 'Fluorometrijsko određivanje metil-paraoksona', Arhiv za higijenu rada i toksikologiju, 16(1), str. 3-9. Preuzeto s: https://hrcak.srce.hr/179401 (Datum pristupa: 27.02.2021.)
Vancouver
Skurić Z. Fluorometrijsko određivanje metil-paraoksona. Arh Hig Rada Toksikol. [Internet]. 1965 [pristupljeno 27.02.2021.];16(1):3-9. Dostupno na: https://hrcak.srce.hr/179401
IEEE
Z. Skurić, "Fluorometrijsko određivanje metil-paraoksona", Arhiv za higijenu rada i toksikologiju, vol.16, br. 1, str. 3-9, 1965. [Online]. Dostupno na: https://hrcak.srce.hr/179401. [Citirano: 27.02.2021.]

Sažetak
A fluorimetric method for the determination of methyl paraoxon is proposed. The method is based on the oxidation of indole with hydrogen peroxide, Some products of this reaction are fluorescent. The reaction is influenced by methyl paraoxon, the reaction rate being a function of the methyl paraoxon concentration in the solution. The sensitivity of the method is 1.1 micrograms methyl paraoxon in 50 cc of the final solution. Some organophosphorous compounds (paraioxon, parathion, methyl paraoxon, methyl parathion) yield p-nitrophenol as the product of their hydrolysis, It is experimentally shown that p-nitrophenol as a yellow compound decreases the fluorescence intensity of the fluorescent products of indole oxidation acting as an internal filter in the solution in which the organophosphorus compound is to be determined. Therefore it is suggested that, prior to the fluorimetric analysis of methyl paraoxon, the concentration of p-nitrophenol in the sample should be determined and the concentration of the organopbosphorous compound estimated from a calibration curve prepared with solutions of methyl paraoxon containing the same concentration of p-nitrophenol.

Hrčak ID: 179401

URI
https://hrcak.srce.hr/179401

[hrvatski]

Posjeta: 179 *