Spiking of performance reference compounds in low density polyethylene and silicone passive water samplers.
A method for spiking performance reference compounds (PRCs) into low density polyethylene (LDPE) and silicone polymers is described. This method is based on equilibration of the polymers in aqueous/methanolic solutions of PRCs. Equilibration times range from minutes to hours for perdeuterated polyaromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) with a hydrophobicity in the range 3.9 < logKow < 7.7. Best results were obtained for methanol-water ratios of 80/20 (v/v). The method allows for the use of PRCs for in situ calibration of the uptake kinetics of these solvent-free sampling phases in a similar way as for semipermeable membrane devices (SPMDs).
Booij
Kees
K
Netherlands Institute for Sea Research, Texel. booij@nioz.nl
Smedes
Foppe
F
van Weerlee
Evaline M
EM
D002138:Calibration; D004784:Environmental Monitoring / Q000379:methods*; D007700:Kinetics; D008567:Membranes, Artificial; D020959:Polyethylene / Q000737:chemistry; D012016:Reference Values; D012828:Silicones / Q000737:chemistry; D013048:Specimen Handling; D014873:Water Pollutants / Q000032:analysis*; D014881:Water Supply
D008567:Membranes, Artificial; D012828:Silicones; D014873:Water Pollutants; D020959:Polyethylene