Development of Polymer Monolith-modified Silica Gel as Solid Phase Extraction Sorbent for Determining of Phenylurea Herbicides in Environmental Waters Using High-performance Liquid Chromatography
2018
Hochschulschrift
Zugriff:
106
In this study, we synthesized poly(lauryl methacrylate-co-1,6-hexanediol ethoxylate diacrylate) (LMA-HEDA) modified silica gels as solid phase extraction sorbents to extract phenylurea herbicides (PUHs) from environmental water sample prior to LC analysis. A series of characterization experiments (including optical microscopy, scanning electron microscopy and Fourier transform infrared spectroscopy) were carried out to investigate the morphology and chemical structure. Under the optimized conditions, a good linearity (the correlation coefficient (R2) > 0.9997) was achieved in the concentration range of 0.1-4 ng/mL for the target PUHs. The method detection limit (S/N = 3) ranged from 0.027 ng/mL to 0.053 ng/mL. In addition, good intra-day/inter-day precision (0.1-4.55%/0.23-5.86%) and accuracy (96.72-104.16%/95.33-103.59%) of the proposed method were obtained. The results revealed that LMA-HEDA modified silica sorbent has a great potential for determining organic pollutants in environmental applications.
Titel: |
Development of Polymer Monolith-modified Silica Gel as Solid Phase Extraction Sorbent for Determining of Phenylurea Herbicides in Environmental Waters Using High-performance Liquid Chromatography
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Autor/in / Beteiligte Person: | KUO, PING-HUI ; 郭蘋慧 |
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Veröffentlichung: | 2018 |
Medientyp: | Hochschulschrift |
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