Sorption capacity of plastic debris for hydrophobic organic chemicals

Nondestructive Sampling of Living Systems Using in Vivo Solid-Phase Microextraction Gangfeng Ouyang,* Dajana Vuckovic, and Janusz Pawliszyn* MOEKeyLaboratory of Aquatic Product Safety/KLGHEI of Environment andEnergyChemistry, School ofChemistry andChemical Engineering, Sun Yat-sen University, Guangzhou 510275, China Department of Chemistry, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada

Nondestructive sampling of living systems using in vivo solid-phase microextraction.

A critical review in calibration methods for solid-phase microextraction

Polymer−water partition coefficients (Kpw) of hexachlorobenzene, 41 polychlorinated biphenyls (PCBs), and 26 polyaromatic hydrocarbons (PAHs) were determined for low-density polyethylene (LDPE) and five different silicone rubbers. Partition coefficients were determined in ultra pure water and in a range of methanol−water mixtures. Different cosolvent models for the effect of methanol concentration on the polymer-mixture partition coefficient (Kpm) were used to validate the Kpw in pure water. Linear regression of logKpm against the mole fraction (x) methanol over range 0 < x < 0.3 yielded the best results. The obtained logKpws were best described by a correlation with molecular weight, for PCBs in combination with the fraction of chlorine atoms in the meta and para positions (standard deviations of ∼0.08 log units). Correlations with logKow were less good (standard deviations of ∼0.21 log units), partly as a result of uncertainties in the logKow estimates that were used. Similar Kpws were found for differe...

Polymer-water partition coefficients of hydrophobic compounds for passive sampling: application of cosolvent models for validation.

Polymer selection for passive sampling: a comparison of critical properties

Solid-phase microextraction fibre-water distribution constants of more hydrophobic organic compounds and their correlations with octanol-water partition coefficients.

A. Paschke

Papers

Solid-phase microextraction fibre-water distribution constants of more hydrophobic organic compounds and their correlations with octanol-water partition coefficients.