NDLI: [Determination of sulfonylurea herbicides in water samples by high performance liquid chromatography coupled with on-line magnetic solid phase extraction using trimethylstearylammonium-bromide-modified magnetic particles].

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[Determination of sulfonylurea herbicides in water samples by high performance liquid chromatography coupled with on-line magnetic solid phase extraction using trimethylstearylammonium-bromide-modified magnetic particles].

Content Provider	Semantic Scholar
Author	Zhang, Ruiqi Wang, Tiefeng Su, Ping Yang, Yi
Copyright Year	2019
Abstract	A magnetic particle with a trimethylstearylammonium-bromide-modified surface was prepared as an adsorbent by a sol-gel method. An on-line magnetic solid phase extraction (MSPE) device was established and used for extraction and preconcentration of two sulfonylurea herbicides (SUHs) (chlorsulfuron and bensulfuron-methyl) in water samples prior to high-performance liquid chromatography. On-line MSPE parameters were optimized, including desorption conditions, adsorbent dose, pH of the sample solution, and injection flow rate. Under the optimum conditions, satisfactory linearity was obtained (correlation coefficients ≥ 0.9997). The limits of detection (LODs) of chlorsulfuron and bensulfuron-methyl were 0.32 and 1.12 μg/L, respectively. The method was successfully applied to determine two sulfonylurea herbicides in three types of environmental water samples. The recoveries of sulfonylurea herbicides were in the range of 70.0%-113.4%. The results confirmed that this method is efficient and simple and has a wide application potential in separation and enrichment of sulfonylurea herbicides in environmental water samples.
Starting Page	259
Ending Page	264
Page Count	6
File Format	PDF HTM / HTML
DOI	10.3724/SP.J.1123.2018.10028
PubMed reference number	30900853
Journal	Medline
Volume Number	37
Issue Number	3
Journal	Se pu = Chinese journal of chromatography
Alternate Webpage(s)	http://www.chrom-china.com/fileup/PDF/SP1810028.pdf
Alternate Webpage(s)	https://doi.org/10.3724/SP.J.1123.2018.10028
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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