Direct determination of 2,4,6-tricholoroanisole in wines by single-drop ionic liquid microextraction coupled with multicapillary column separation and ion mobility spectrometry detection

2011 ◽  
Vol 1218 (42) ◽  
pp. 7574-7580 ◽  
Author(s):  
Isabel Márquez-Sillero ◽  
Soledad Cárdenas ◽  
Miguel Valcárcel
Keyword(s):  
Ionic Liquid ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Direct Determination ◽  
Single Drop ◽  
Column Separation ◽  
Multicapillary Column ◽  
Liquid Microextraction

Determination of 2,4,6-tricholoroanisole in water and wine samples by ionic liquid-based single-drop microextraction and ion mobility spectrometry

2011 ◽  
Vol 702 (2) ◽  
pp. 199-204 ◽  
Author(s):  
Isabel Márquez-Sillero ◽  
Eva Aguilera-Herrador ◽  
Soledad Cárdenas ◽  
Miguel Valcárcel
Keyword(s):  
Ionic Liquid ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Single Drop ◽  
Single Drop Microextraction

On-line headspace-multicapillary column-ion mobility spectrometry hyphenation as a tool for the determination of off-flavours in foods

2014 ◽  
Vol 1333 ◽  
pp. 99-105 ◽  
Author(s):  
Isabel Márquez-Sillero ◽  
Soledad Cárdenas ◽  
Stefanie Sielemann ◽  
Miguel Valcárcel
Keyword(s):  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
On Line ◽  
Multicapillary Column

scholarly journals Preconcentration and Determination of Psychotropic Drugs in Urine Samples by Ion Mobility Spectrometry with Electrospray Ionization Coupling On-Line Single-Drop Liquid-Liquid-Liquid Microextraction

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Shu Li
Keyword(s):  
Organic Phase ◽  
Ion Mobility Spectrometry ◽  
Ion Mobility ◽  
Psychotropic Drugs ◽  
Field Application ◽  
Extraction Time ◽  
Single Drop ◽  
Factors Affecting ◽  
Liquid Microextraction ◽  
Acceptor Phase

A method for analysis of psychotropic drugs in urine is investigated using a novel single-drop liquid-liquid-liquid microextraction (SDLLLME) apparatus as an electrospray emitter in ion mobility spectrometry (IMS). In this method, ketamine and pethidine are back-extracted into the acceptor phase (water and methanol) from the water and methanol immiscible organic phase. Sensitivity of extraction is improved as it does not require further methanol-adding procedure. Factors affecting the extraction of psychotropic drugs are characterized, including organic solvent type, extraction time, and concentration of NaOH/Ac in the donor/acceptor phase. The best extraction sensitivity is obtained with 600 μL dodecane as the organic phase, 30 minutes extraction time, and 10 mL donor phase with 0.01 M sodium hydroxide (NaOH) and 3 μL acceptor phase with 0.5 M acetic acid (Ac). Using this method, the two analytes can be extracted and analyzed simultaneously, showing this method is valuable for field application.

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