Uptake and release of polar compounds in SDB-RPS Empore™ disks; implications for their use as passive samplers

Shaw, Melanie; Eaglesham, Geoff; Mueller, Jochen F.

doi:10.1016/j.chemosphere.2008.11.072

Cited by 87 publications

(78 citation statements)

References 21 publications

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“…This observation may explain why some researchers experienced difficulties with desorption studies using SPE-loaded Empore™ disks (e.g. [19]). Furthermore, this observation may explain the differences observed for L2d and L12d disks (Fig.…”

Section: Desorption Follows a Two-phase Modelmentioning

confidence: 99%

“…Shaw et al [19] found that the dissipation rates of PRCs could not be used to estimate the effect of field exposure conditions on uptake rates of Empore™ SDB disks. However, Camilleri et al [20] observed close to isotropic exchange for 3 of 20 compounds that were tested on Empore™ C18 disks covered with a polyethersulfone membrane.…”

Section: Introductionmentioning

confidence: 99%

“…A few recent studies have touched on desorption of chemicals from POCIS [16] and Chemcatchers [18,19,20], but their results were controversial. Shaw et al [19] found that the dissipation rates of PRCs could not be used to estimate the effect of field exposure conditions on uptake rates of Empore™ SDB disks.…”

Section: Introductionmentioning

confidence: 99%

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Uptake and release kinetics of 22 polar organic chemicals in the Chemcatcher passive sampler

et al. 2013

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The Chemcatcher passive sampler, which uses Empore™ disks as sampling phase, is frequently used to monitor polar organic chemicals in river water and effluents. Uptake kinetics need to be quantified to calculate timeweighted average concentrations from Chemcatcher field deployments. Information on release kinetics is needed if performance reference compounds (PRCs) are used to quantify the influence of environmental conditions on the uptake. In a series of uptake and elimination experiments, we used Empore™ SDB disks (poly(styrenedivinylbenzene) copolymer modified with sulfonic acid groups) as a sampling phase and 22 compounds with a logK ow (octanol-water partitioning coefficient) range from −2.6 to 3.8. Uptake experiments were conducted in river water or tap water and lasted up to 25 days. Only 1 of 22 compounds (sulfamethoxazole) approached equilibrium in the uptake trials. Other compounds showed continuing non-linear uptake, even after 25 days. All compounds could be released from SDB disks, and desorption was proportionally higher in disks loaded for shorter periods. Desorption showed two-phase characteristics, and desorption was proportionally higher for passively sorbed compounds compared to actively loaded compounds (active loading was performed by pulling spiked river water over SDB disks using vacuum). We hypothesise that the two-phase kinetics and better retention of actively loaded compounds-and compounds loaded for a longer period-may be caused by slow diffusion of chemicals within the polymer. As sorption and desorption did not show isotropic kinetics, it is not possible to develop robust PRCs for adsorbent material like SDB disks.

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Section: Desorption Follows a Two-phase Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Uptake and release kinetics of 22 polar organic chemicals in the Chemcatcher passive sampler

et al. 2013

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“…The monitoring found three insecticides (endosulfan, chlorpyrifos and parathion methyl) in the passive sampler solvents. Elsewhere in Australia, a number of relatively recent studies have detected residues of atrazine, diuron, hexazinone and simazine in rivers and estuaries on the eastern seaboard of Australia using the CC passive sampling system (Escher et al 2006;Muller et al 2008;Shaw et al 2009aShaw et al , b, 2010Stephens et al 2009;O'Brien et al 2011), andMueller et al (2011) tracked POPs in the Brisbane River, but prior to this study, there had been no significant studies investigating TrOCs in surface waters in Victoria using the CC system.…”

Section: Introductionmentioning

confidence: 93%

Combining Passive Sampling with a GC-MS-Database Screening Tool to Assess Trace Organic Contamination of Rivers: a Pilot Study in Melbourne, Australia

Allinson

Kadokami

2015

Water Air Soil Pollut

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This study assessed the suitability of passive sampler extracts for use with a GC-MS-database rapid screening technique for around 940 organic chemicals. Chemcatcher™ passive sampler systems containing either Empore™ SDB-XC or C18FF disks were deployed at 21 riverine sites in and near Melbourne, Victoria, Australia, for a period of 28 days during SeptemberOctober 2008. Methanolic elution of the SDB-XC and C18FF disks produced an extract that, after evaporation and inversion into hexane, was compatible with the GC-MS-database method enabling over 30 chemicals to be observed. The sources of the non-agricultural chemicals are still unclear, but this study was conducted in a relatively dry season where total rainfall was approximately 40 % lower than the long-term mean for the catchment during the study period.

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“…These samplers have smaller sampling areas in comparison with the SPMD and the commonly used polymeric devices. Naked Empore™ disk (with no diffusion membrane) samplers have also been used with varying degrees of success (Gunold et al ., 2008;Shaw et al ., 2009a).…”

Section: Passive Samplersmentioning

confidence: 99%

Passive Sampling Technologies

Mills¹,

Fones

Booij

et al. 2011

Chemical Marine Monitoring

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Uptake and release of polar compounds in SDB-RPS Empore™ disks; implications for their use as passive samplers

Cited by 87 publications

References 21 publications

Uptake and release kinetics of 22 polar organic chemicals in the Chemcatcher passive sampler

Uptake and release kinetics of 22 polar organic chemicals in the Chemcatcher passive sampler

Combining Passive Sampling with a GC-MS-Database Screening Tool to Assess Trace Organic Contamination of Rivers: a Pilot Study in Melbourne, Australia

Passive Sampling Technologies

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