Thermally condensed humic acids onto silica as SPE for effective enrichment of glucocorticoids from environmental waters followed by HPLC-HESI-MS/MS
作者: Andrea SpeltiniFrancesca MerloFederica MaraschiMichela SturiniMatteo ContiniNicola CalisiAntonella Profumo
作者单位: 1Department of Chemistry, University of Pavia, via Taramelli 12, 27100 Pavia, Italy
2Department of Chemistry, University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino, Italy
3INSTM Research Unit of Firenze, via della Lastruccia 3, I-50019 Sesto Fiorentino, Italy
刊名: Journal of Chromatography A, 2018, Vol.1540 , pp.38-46
来源数据库: Elsevier Journal
DOI: 10.1016/j.chroma.2018.02.004
关键词: Environmental watersGlucocorticoidsHPLC–MSHumic acidsPollutantsSolid-phase extraction
原始语种摘要: Abstract(#br)Pristine humic acids (HAs) were thermally condensed onto silica microparticles by a one-pot, inexpensive and green preparation route obtaining a mixed-mode sorbent (HA-C@silica) with good sorption affinity for glucocorticoids (GCs). The carbon-based material, characterized by various techniques, was indeed applied as the sorbent for fixed-bed solid-phase extraction of eight GCs from river water and wastewater treatment plant effluent, spiked at different concentration levels in the range 1–400 ng L −1 . After sample extraction, the target analytes were simultaneously and quantitatively eluted in a single fraction of methanol, achieving enrichment factor 4000 and 1000 in river water and wastewater effluent, respectively. Full recovery for all compounds, was gained in the real...
全文获取路径: Elsevier  (合作)
影响因子:4.612 (2012)

  • effluent 
  • humic 腐殖的
  • wastewater 废水
  • enrichment 富集
  • effective 有效的
  • sorbent 吸着剂
  • silica 硅土
  • environmental 环境的
  • condensed 压[紧]缩
  • recovery 回收