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2022, vol. 11, br. 1, str. 45-52
Ispitivanje osetljivosti analize pesticida u odabranom voću i povrću na masenim spektrometrima sa trostrukim kvadrupolom i jonskom zamkom
aUniverzitet u Nišu, Srbija
bUniverzitet u Nišu, Prirodno-matematički fakultet, Srbija

e-adresamilica.chem@outlook.com
Projekat:
451-03-68/2022-14/200383
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije (institucija: Univerzitet u Nišu, Prirodno-matematički fakultet) (MPNTR - 451-03-68/2020-14/200124)

Ključne reči: Masena spektrometrija; HPLC; multirezidualna analiza; povrće
Sažetak
Masena spektrometrija je jedna od najselektivnijih i najosetljivijih instrumentalnih tehnika koje se primenjuju u različitim naučnim disciplinama. Termin osetljivost u masenoj spektrometriji obično se definiše kao promena u merenom signalu analita sa promenom njegove koncentracije. Faktori poput načina pripreme uzoraka, sastava hromatografske mobilne faze, vrste hromatografske kolone i osobina masenog spektrometra mogu uticati na osetljivost analize. Cilj ovog rada bio je ispitivanje uticaja vrste masenog spektrometra, tačnije masenog analizatora na osetljivost analize pesticida u povrću i limunu, pri konstantnim ostalim faktorima. U ispitivanje su bila uvrštena dva masena spektrometra: maseni spektrometar sa trostrukim kvadrupolom i sa linearnom jonskom zamkom kao analizatorima. Poređenje osetljivosti putem nagiba kalibracione funkcije izračunate za seriju standarda u rastvaraču i u matriksima limuna i povrća tretiranog QuEChERS procedurom pokazalo je da je kod analize pesticida osetljivost mnogo veća na instrumentu sa trostrukim kvadrupolom kao analizatorom. Osetljivost je bila veća od 5 do 134 puta.
Reference
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O članku

jezik rada: engleski
vrsta rada: izvorni naučni članak
DOI: 10.5937/savteh2201045A
primljen: 18.03.2022.
prihvaćen: 18.05.2022.
objavljen u SCIndeksu: 14.07.2022.

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