Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1522, Issue -, Pages 16-22Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.chroma.2017.09.058
Keywords
Solid-phase microextraction; High performance liquid chromatography; Silk fiber; Chemical derivatization; Aldehydes; Online analysis
Funding
- Shandong Provincial Natural Science Foundation of China [ZR2017MB043]
- National Natural Science Foundation of China (NSFC) [21777054, 21405061]
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Aldehydes are the potentially damaging pollutants in the environment, but it is difficult to be determined due to the low concentration level. Therefore, to accurate analysis of aldehydes, it is important for efficient sample preparation with selective enrichment and rapid separation. Environmentally friendly silk fiber as adsorbent material was directly applied to develop in-tube solid-phase microextraction for analyzing aqueous samples combined with high performance liquid chromatography. 2,4-Dinitrophenylhydrazine as a derivative reagent was used for chemical derivatization of aldehydes before extraction. Under optimum conditions, an online analysis method was built with the limits of detection in the range of 0.005-0.01 mu g L-1 and the linearity in the range of 0.03-10 mu g L-1. Three aldehydes were determined in two real samples, and the relative recoveries were in the range of 95-102%. (C) 2017 Elsevier B.V. All rights reserved.
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