Determination of nine sensitizing disperse dyes in activated sludge by ultrasound-assisted liquid–liquid extraction–ultra-performance liquid chromatography–electrospray ionization–tandem mass spectrometry

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• 作者：Linjun Zhou ; Lili Shi ; Jining Liu ; Fenglan Lv…
• 关键词：Sensitizing disperse dye ; Ultrasound ; assisted liquid–liquid extraction ; Liquid chromatography–mass spectrometry ; Activated sludge
• 刊名：Analytical and Bioanalytical Chemistry
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：408
• 期：2
• 页码：487-494
• 全文大小：403 KB
• 参考文献：1.He JX (2004) Dye Chemistry. China Textile Press
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• 作者单位：Linjun Zhou (1) (2)
  Lili Shi (1)
  Jining Liu (1)
  Fenglan Lv (2)
  Yanhua Xu (2)
  
  1. Key Lab of Pesticide Environmental Assessment and Pollution Control, Nanjing Institute of Environment Sciences, Ministry of Environment Protection (MEP), Nanjing, 210042, China
  2. Nanjing Technology University, Nanjing, 210009, China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Analytical Chemistry
  Food Science
  Inorganic Chemistry
  Physical Chemistry
  Monitoring, Environmental Analysis and Environmental Ecotoxicology
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1618-2650

文摘

A method was developed on the basis of ultrasound-assisted liquid–liquid extraction ultra-performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (ULLE–UPLC–ESI–MS/MS) to determine nine sensitizing disperse dyes in activated sludge. The samples were extracted using ULLE and separated through UPLC on an ACQUITY UPLCTM BEH C18 column with a gradient elution program of acetonitrile and acidified water (containing 2 % acetonitrile, 0.2 % formic acid, and 0.005 mol/L ammonium; pH 2.7) as the mobile phase. The samples were then identified and quantified through UPLC–ESI–MS/MS in a positive mode and multiple reaction monitoring. Results showed good linearity (10–1000 μg/L, 0.9934–0.9998), detection limit (0.08–2.17 μg/L), and quantification limit (0.27–7.38 μg/L) for the nine sensitizing disperse dyes, with recoveries ranging from 65.0 to 111.3 %. The proposed method was applied to detect and determine the concentration of sensitizing disperse dyes in sludge samples obtained from various sewage treatment plants (six dyeing enterprises and one dye manufacturer). Three sensitizing disperse dyes were identified, and the lowest concentration detected was 10 μg/kg. Keywords Sensitizing disperse dye Ultrasound-assisted liquid–liquid extraction Liquid chromatography–mass spectrometry Activated sludge