Enrichment and determination of octylphenol and nonylphenol in environmental water samples by solid-phase microextraction with carboxylated carbon nano-spheres coating prior to gas chromatography-mass spectrometry.
Anal Bioanal Chem
; 407(29): 8673-9, 2015 Nov.
Article
en En
| MEDLINE
| ID: mdl-26302960
ABSTRACT
In this paper, a novel and simple method for the sensitive determination of endocrine disrupter compounds octylphenol (OP) and nonylphenol (NP) in environmental water samples has been developed using solid-phase microextraction (SPME) coupled with gas chromatography-mass spectrometry. Carboxylated carbon nano-spheres (CNSs-COOH) are used as a novel SPME coating via physical adhesion. The CNSs-COOH fiber possessed higher adsorption efficiency than 100 µm polydimethysiloxane (PDMS) fiber and was similar to 85 µm polyacrylate (PA) fiber for the two analytes. Important parameters, such as extraction time, pH, agitation speed, ionic strength, and desorption temperature and time, were investigated and optimized in detail. Under the optimal parameters, the developed method achieved low limits of detection of 0.13~0.14 ng·L(-1) and a wide linear range of 1~1000 ng·(-1) for OP and NP. The novel method was validated with several real environmental water samples, and satisfactory results were obtained.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Fenoles
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Contaminantes Químicos del Agua
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Carbono
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Disruptores Endocrinos
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Microextracción en Fase Sólida
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Nanosferas
Tipo de estudio:
Evaluation_studies
Idioma:
En
Revista:
Anal Bioanal Chem
Año:
2015
Tipo del documento:
Article
País de afiliación:
China