scholarly journals Adapting current model with field data of related performance reference compounds in passive samplers to accurately monitor hydrophobic organic compounds in aqueous media

2017 ◽  
Vol 189 (11) ◽  
Author(s):  
Pokem Temoka ◽  
Gerd Pfister ◽  
Bernhard Henkelmann ◽  
Karl-Werner Schramm
Keyword(s):  
Organic Compounds ◽  
Field Data ◽  
Current Model ◽  
Aqueous Media ◽  
Passive Samplers ◽  
Hydrophobic Organic Compounds

scholarly journals Non-Enzymatic Desymmetrization Reactions in Aqueous Media

Symmetry ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 720
Author(s):  
Satomi Niwayama
Keyword(s):  
Natural Products ◽  
Total Synthesis ◽  
Functional Groups ◽  
Organic Compounds ◽  
Recent Progress ◽  
Aqueous Media ◽  
Building Blocks ◽  
Organic Reactions ◽  
Environmentally Benign ◽  
Enzymatic Desymmetrization

Symmetric organic compounds are generally obtained inexpensively, and therefore they can be attractive building blocks for the total synthesis of various pharmaceuticals and natural products. The drawback is that discriminating the identical functional groups in the symmetric compounds is difficult. Water is the most environmentally benign and inexpensive solvent. However, successful organic reactions in water are rather limited due to the hydrophobicity of organic compounds in general. Therefore, desymmetrization reactions in aqueous media are expected to offer versatile strategies for the synthesis of a variety of significant organic compounds. This review focuses on the recent progress of desymmetrization reactions of symmetric organic compounds in aqueous media without utilizing enzymes.

Three-phase partitioning of hydrophobic organic compounds in Great Lakes waters

Chemosphere ◽  
1990 ◽  
Vol 20 (1-2) ◽  
pp. 161-178 ◽  
Author(s):  
Brian J. Eadie ◽  
Nancy R. Morehead ◽  
Peter F. Landrum
Keyword(s):  
Great Lakes ◽  
Organic Compounds ◽  
Hydrophobic Organic Compounds ◽  
Phase Partitioning ◽  
Three Phase

Impact of passive sampler protection apparatus on sediment porewater profiles of hydrophobic organic compounds

Chemosphere ◽  
2020 ◽  
Vol 252 ◽  
pp. 126534
Author(s):  
Liang Wu ◽  
Rong Wang ◽  
Chun-Li Huang ◽  
Chen-Chou Wu ◽  
Charles S. Wong ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Passive Sampler ◽  
Hydrophobic Organic Compounds

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.

Concentration of Hydrophobic Organic Compounds by Polymer-Mediated Extraction

1999 ◽  
Vol 71 (20) ◽  
pp. 4506-4512 ◽  
Author(s):  
Tohru Saitoh ◽  
Yuki Yoshida ◽  
Toshiyuki Matsudo ◽  
Shinsuke Fujiwara ◽  
Akira Dobashi ◽  
...  
Keyword(s):  
Organic Compounds ◽  
Hydrophobic Organic Compounds
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