Solid-phase microextraction of benzophenones coupled with gas chromatography analysis
Тип публікації :
Стаття
Дата випуску :
2016
Автор(и) :
Levchyk, Valentyna
Zui, M.
Мова основного тексту :
Англійська
eKNUTSHIR URL :
Том :
4
Випуск :
2
ISSN :
2312-3222
Початкова сторінка :
55
Кінцева сторінка :
62
Цитування :
[APA 7] Levchyk, V., & Zui, M. (2016). Solid-phase microextraction of benzophenones coupled with gas chromatography analysis. French-Ukrainian Journal of Chemistry, 4(2), 55–62. https://doi.org/10.17721/fujcV4I2P55-62
[ДСТУ] Levchyk V., Zui M. Solid-phase microextraction of benzophenones coupled with gas chromatography analysis. French-Ukrainian Journal of Chemistry. 2016. Vol. 4, no. 2. P. 55—62. DOI: 10.17721/fujcV4I2P55-62 (date of access: 25.07.2026).
Abstract. In this study, solid-phase microextraction method combines with gas chromatography-flame ionization detector. The proposed method is used for the preconcentration of some benzophenones. Influence of different factors on the efficiency of extraction is described in detail. The analytical procedure was optimized for fiber coating selection, extraction time, temperature, sample pH, ionic strength. For all benzophenones, the highest enrichment factors were achieved using carboxen/polydimethylsiloxane/divinylbenzene fibre immersed directly into the water samples, containing 100 mg/mL of sodium chloride, at room temperature. The optimum pH range is 5.0 – 7.0. The relative standard deviations (RSDs) were from 1.3 to 10.0 % (n = 3). The method was applied to the determination of benzophenone, benzophenone-3, 2-hydroxybenzophenone in the lake water and urine.
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