Assessment of Chemcatcher passive sampler for the monitoring of inorganic mercury and organotin compounds in water
- 7 January 2008
- journal article
- research article
- Published by Taylor & Francis Ltd in International Journal of Environmental Analytical Chemistry
- Vol. 88 (2), 75-90
- https://doi.org/10.1080/03067310701461870
Abstract
Several configurations of receiving disks and diffusion membranes were tested for monitoring mercury and organotin compounds (monobutyltin, dibutyltin, tributyltin, and triphenyltin) in water with a passive sampler. This passive sampler is based on the diffusion of these compounds through a specific diffusion-limiting membrane and their subsequent accumulation on a specific receiving phase, all materials being commercially available. The proposed sampler for inorganic mercury comprises a 47-mm Empore™ chelating disk as receiving phase and polyethersulfone as diffusion membrane. For monitoring organotins, the receiving phase is a 47-mm Empore™ C18 disk, and the diffusion membrane is cellulose acetate. ICP-MS and GC-ICPMS/GC-FPD were used for inorganic mercury and the organotins analysis, respectively. The effects of environmental variables such as pH and salinity that could influence accumulation of test substances in receiving phase were studied. Linear uptake for all compounds was observed for at least 14 days of exposure at a constant aqueous analyte concentration in a flow-through system under controlled conditions of temperature, turbulence, and analyte concentration. Compound-specific sampling rates at 11°C and simulated water turbulence of 40cms−1 varied between 0.018 and 0.137Ld−1. Compounds collected by the sampler exhibited detection limits ranging between 0.7 and 5.9ngL−1. The feasibility of using these samplers in the field was tested in a polluted commercial harbour. The behaviour of the samplers to monitor target compounds was compared with those obtained from spot samples of water taken throughout the field deployment period. Data from laboratory studies and field trial support the feasibility of these samplers to measure the freely dissolved fraction of these important target analytes in water.Keywords
This publication has 31 references indexed in Scilit:
- Performance optimisation of a passive sampler for monitoring hydrophobic organic pollutants in waterJournal of Environmental Monitoring, 2005
- A new polymeric adsorbent for screening and pre-concentration of organotin compounds in sediments and seawater samplesSpectrochimica Acta Part B: Atomic Spectroscopy, 2004
- Mercury speciation analysis in sea water by solid phase microextraction–gas chromatography–inductively coupled plasma mass spectrometry using ethyl and propyl derivatization. Matrix effects evaluationSpectrochimica Acta Part B: Atomic Spectroscopy, 2004
- Speciation of mercury in surface and deep-sea waters in the Mediterranean SeaAtmospheric Environment, 2003
- Environmentally friendly sample treatment for speciation analysis by hyphenated techniquesGreen Chemistry, 2003
- Diffusional behaviour of metals in a passive sampling system for monitoring aquatic pollutionJournal of Environmental Monitoring, 2001
- Field sampling, preconcentration and determination of mercury species in river watersAnalytica Chimica Acta, 2000
- An alternative GC-ICP-MS interface design for trace element speciationJournal of Analytical Atomic Spectrometry, 1999
- Hexane-filled dialysis bags for monitoring organic contaminants in waterEnvironmental Science & Technology, 1991
- Speciation for analysis of organotin compounds by GC AA and GC MS after ethylation by sodium tetraethylborateApplied Organometallic Chemistry, 1991