Direct Determination of Organic Compounds in Water at Parts-per-Quadrillion Levels by Membrane Introduction Mass Spectrometry

1995 ◽  
Vol 67 (8) ◽  
pp. 1409-1412 ◽  
Author(s):  
Manish. Soni ◽  
Scott. Bauer ◽  
Jon W. Amy ◽  
Philip. Wong ◽  
R. Graham. Cooks
Keyword(s):  
Mass Spectrometry ◽  
Organic Compounds ◽  
Direct Determination ◽  
Membrane Introduction Mass Spectrometry

scholarly journals The Use of Amberlite Adsorbents for Green Chromatography Determination of Volatile Organic Compounds in Air

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Luis Juan-Peiró ◽  
Anne Bernhammer ◽  
Agustin Pastor ◽  
Miguel de la Guardia
Keyword(s):  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Direct Determination ◽  
Direct Analysis ◽  
Passive Samplers ◽  
Sample Treatment ◽  
Filling Material ◽  
Chromatography Analysis ◽  
Volatile Organic

Passive samplers have been widely used for volatile organic compounds determination. Following the green chemistry tendency of the direct determination of adsorbed compounds in membrane-based devices through using head space direct chromatography analysis, this work has evaluated the use of Amberlite XAD-2, XAD-4, and XAD-16 adsorbents as a filling material for passive samplers. Direct analysis of the membranes by HS-GC-MS involves a solvent-free method avoiding any sample treatment. For exposed membranes, recoveries ranged from 10% to 203%, depending on the compound and adsorbent used. The limit of the detection values ranged from 1 to 140 ng per sampler. Acceptable precision and sensitivity levels were obtained for the XAD resins assayed.

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