Front Cover: Extraction of acetanilide herbicides in naked oat ( Avena nuda L .) by using ionic‐liquid‐based matrix solid‐phase dispersion‐foam flotation solid‐phase extraction

2019 ◽  
Vol 42 (22) ◽  
Author(s):  
Liyuan Zhang ◽  
Zhenchuan Ma ◽  
Changyuan Wang ◽  
Runzhong Yu ◽  
Dongjie Zhang
Keyword(s):  
Ionic Liquid ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Phase Extraction ◽  
Front Cover ◽  
Naked Oat ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Foam Flotation ◽  
Avena Nuda

Separation and concentration of sulfonylurea herbicides in milk by ionic-liquid-based foam flotation solid-phase extraction

2015 ◽  
Vol 38 (10) ◽  
pp. 1733-1740 ◽  
Author(s):  
Liyuan Zhang ◽  
Bocheng Cao ◽  
Di Yao ◽  
Runzhong Yu ◽  
Changqing Yu ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Solid Phase Extraction ◽  
Solid Phase ◽  
Phase Extraction ◽  
Sulfonylurea Herbicides ◽  
Foam Flotation

Solid-phase extraction versus matrix solid-phase dispersion: Application to white grapes

Talanta ◽  
2007 ◽  
Vol 74 (1) ◽  
pp. 20-31 ◽  
Author(s):  
M.S. Dopico-García ◽  
P. Valentão ◽  
A. Jagodziñska ◽  
J. Klepczyñska ◽  
L. Guerra ◽  
...  
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Phase Extraction ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion

scholarly journals Simultaneous determination of 223 pesticides in tobacco by GC with simultaneous electron capture and nitrogen-phosphorous detection and mass spectrometric confirmation

2015 ◽  
Vol 13 (1) ◽  
Author(s):  
Bozena Lozowicka ◽  
Ewa Rutkowska ◽  
Izabela Hrynko
Keyword(s):  
Solid Phase Extraction ◽  
Solid Phase ◽  
Mass Spectrometric ◽  
Phase Extraction ◽  
Dispersive Solid Phase Extraction ◽  
Graphitized Carbon ◽  
Matrix Solid Phase Dispersion ◽  
Phase Dispersion ◽  
Primary Secondary Amine

AbstractLSE (liquid-solid extraction), MSPD (matrix solid phase dispersion) and QuEChERS (quick, easy, cheap, effective, rugged and safe) extractions followed by GC-μECD/NPD to determine 223 pesticide residues in tobacco simultaneously were developed and compared. The identities of ten model pesticides were confirmed by GC-MS/MS. The type and amount of dispersant (Florisil, silica gel and alumina), sample mass, cleanup adsorbent, and the eluent (hexane, acetone and acetonitrile) were optimized. Linearity, recovery, LOQ, LOD, and matrix effect were compared. Most recoveries were 71−120% (RSD < 18%). LOD and LOQ were much lower than the CORESTA GRLs. The best method was QuEChERS: acetonitrile extraction and dispersive solid-phase extraction using primary-secondary amine and graphitized carbon.

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