scholarly journals Development of method of isolation and purification of PAHs from exposed semipermeable membrane devices (SPMDs) prior to GC-MS analysis

2013 ◽  
Vol 6 (2) ◽  
pp. 281-287 ◽  
Author(s):  
Veronika Klučárová ◽  
Eva Benická ◽  
Branislav Vrana
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
Organic Contaminants ◽  
Passive Sampling ◽  
Gel Permeation Chromatography ◽  
Semipermeable Membrane ◽  
Passive Samplers ◽  
Isolation And Purification ◽  
Semipermeable Membrane Devices ◽  
Polycyclic Aromatic

Abstract Surface water pollution by organic contaminants was investigated using passive sampling by semipermeable membrane devices (SPMDs), based on free transfer of analyte (diffusion) from water into receiving phase of sampler. The work was aimed at isolation method of contaminants from passive samplers extracts and instrumental analysis of polycyclic aromatic hydrocarbons. Gel permeation chromatography after silica gel sample cleanup was used as a method for cleaning the extracts of passive samplers from interfering Triolein, the receiving phase in the samplers. The efficiency of isolation and cleaning was determined for polycyclic aromatic hydrocarbons as a target group of contaminants. Polycyclic aromatic hydrocarbons were determined in the obtained fraction by gas chromatography coupled with mass spectrometry.

scholarly journals Fate and Transport of Polycyclic Aromatic Hydrocarbons in Upland Irish Headwater Lake Catchments

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Heidi E. M. Scott ◽  
Julian Aherne ◽  
Chris D. Metcalfe
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Aromatic Hydrocarbons ◽  
East Coast ◽  
Atmospheric Transport ◽  
Fate And Transport ◽  
Semipermeable Membrane ◽  
Semipermeable Membrane Devices ◽  
Polycyclic Aromatic ◽  
Study Sites ◽  
To Receive

Polycyclic aromatic hydrocarbons (PAHs) are a concern due to their carcinogenicity and propensity for transboundary atmospheric transport. Ireland is located on the western periphery of Europe and assumed to receive clean Atlantic air. As such, it has been used as an atmospheric reference for comparison to other regions. Nonetheless, few studies have evaluated concentrations of PAHs within the Irish environment. In the current study, PAHs were measured at five upland (500–800 masl) headwater lake catchments in coastal regions around Ireland, remote from industrial point source emissions. Semipermeable membrane devices were deployed in lakes for a 6-month period in July 2009, and topsoils were sampled from each catchment during October 2010. The concentrations of PAHs were low at most study sites with respect to other temperate regions. Homologue groups partitioned between lake and soil compartments based on their molecular weight were: “lighter” substances, such as Phenanthrene and Fluorene, were found in higher proportions in lakes, whereas “heavier” compounds, such as Chrysene and Benz[a]anthracene, were more prominent in soils. Concentrations of PAHs were highest at the east coast sites, potentially due to contributions from historical transboundary and regional combustion sources.

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