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Titolo:
Stable association complex electrospray mass spectrometry for the determination of cyanuric acid
Autore:
Magnuson, ML; Kelty, CA; Cantu, R;
Indirizzi:
US EPA, Treatment Technol Evaluat Branch, Water Supply & Water Resources Div, Natl Risk Management Res Lab,Off Res & Dev, Cincinnati, OH 45268 USA USEPA Cincinnati OH USA 45268 ab,Off Res & Dev, Cincinnati, OH 45268 USA US EPA, Chem Exposure Res Branch, Microbial & Chem Exposure Assessment ResDiv, Natl Exposure Res Lab,Off Res & Dev, Cincinnati, OH 45268 USA US EPA Cincinnati OH USA 45268 ab,Off Res & Dev, Cincinnati, OH 45268 USA
Titolo Testata:
JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
fascicolo: 10, volume: 12, anno: 2001,
pagine: 1085 - 1091
SICI:
1044-0305(200110)12:10<1085:SACEMS>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
SOLID-PHASE EXTRACTION; DRINKING-WATER; PHOTOCATALYTIC DEGRADATION; TITANIUM-DIOXIDE; ATRAZINE; ION; MINERALIZATION; PERCHLORATE; BIODEGRADATION; ULTRAVIOLET;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
36
Recensione:
Indirizzi per estratti:
Indirizzo: Magnuson, ML US EPA, Treatment Technol Evaluat Branch, Water Supply & Water Resources Div, Natl Risk Management Res Lab,Off Res & Dev, 26 W Martin Luther King Dr,Cincinnati, OH 45268 USA US EPA 26 W Martin Luther King Dr Cincinnati OH USA 45268 USA
Citazione:
M.L. Magnuson et al., "Stable association complex electrospray mass spectrometry for the determination of cyanuric acid", J AM SOC M, 12(10), 2001, pp. 1085-1091

Abstract

Cyanuric acid, a suspected gastrointestinal or liver toxicant, has gained interest as a potential degradation product of triazine herbicides, such assimazine and atrazine. This paper investigates the determination of cyanuric acid by stable association complex electrospray mass spectrometry (cESI-MS). The cyanuric acid is extracted from the water through a microscale liquid-liquid extraction. The extract is evaporated to dryness, and an aqueoussolution of quaternary ammonium cationic surfactant is added. When injected into the electrospray mass spectrometer, the surfactant and the cyanuric acid form a mass-selective stable association complex, which may be used for confident quantification of cyanuric acid. Several extraction solvents and surfactants were investigated. These studies provide insight into the mechanism of electrospray for the formation of these complexes, specifically with regard to the surface activity of the different surfactants and the chemistry of the surfactant-cyanuric acid complexes. From an analytical standpoint, the cESI-MS method detection limit for extraction of a 1 mL aqueous solution of cyanuric acid was 130 mug/L based on 3.140 sigma (n-1) of seven replicate injections. Standard additions were used for quantification of eight aqueous samples. The cyanuric acid concentrations determined with cESI-MS were not significantly different at the 95% confidence level to those determined by conventional high-performance liquid chromatography (HPLC). A recovery of 100% from a fortified urine sample illustrates the robustness ofthe technique. (C) 2001 American Society for Mass Spectrometry.

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Documento generato il 23/09/20 alle ore 05:32:26