pah analytical Articles
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Bridging environmental mixtures and toxic effects
The Biological Response Indicator Devices Gauging Environmental Stressors (BRIDGES) is a bioanalytical tool that combines passive sampling with the embryonic zebrafish developmental toxicity bioassay to provide a quantitative measure of the toxicity of bioavailable complex mixtures. Passive sampling devices (PSDs), which sequester and concentrate bioavailable organic contaminants from the ...
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Predicting toxicity to Hyalella azteca in pyrogenic‐impacted sediments – Do we need to analyze for all 34 PAHs?
PAHs are major drivers of risk at many urban/industrialized sediment sites. The USEPA currently recommends using measurements of 18 parent + 16 groups of alkylated PAHs (PAH‐34) to assess the potential for sediment‐bound PAHs to impact benthic organisms at these sites. ASTM Method D7363‐13 was developed to directly measure low‐level sediment pore water PAH concentrations. These concentrations ...
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Dispersant and salinity effects on weathering and acute toxicity of South Louisiana crude oil
Chemical dispersants are an important technology in the remediation of oil spills in the aquatic environment, facilitating degradation of crude oil and salinity is an important factor in dispersant effectiveness. The aim of the current study was to explore the role of salinity on the degradation chemistry of crude oil polycyclic aromatic hydrocarbons (PAH) and acute toxicity of the water ...
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Improved recoveries and lower background for the analysis of PAHs in Olive Oil
Using Supelclean EZ-POP NP and an SLB-5ms GC Column A recent survey implemented by Supelco revealed that 58% of analytical chemists in the food industry find the analysis of compounds in fatty matrices to be highly problematic. Lipid interferences can produce elevated detection limits, contamination of LC and GC systems, and ultimately decrease instrument and column lifetime. Current extraction ...
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