A simple recirculating flow system for the calibration of polar organic chemical integrative samplers (POCIS): Effect of flow rate on different water pollutants

Carro, Marina Di; Bono, Luca; Magi, Emanuele

doi:10.1016/j.talanta.2013.11.088

Cited by 52 publications

(22 citation statements)

References 20 publications

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“…Lastly, differences among sampling rates observed for bicyclopyrone and fomasefen were too sporadic to allow proper assessment of significant changes that may occur between stagnant and flow conditions or as a function of flow velocity. These observations are consistent with results reported in several previous studies (Alvarez et al 2004;Li et al 2010aLi et al , 2010bCharlestra et al 2012;Kaserzon et al 2013;Dalton et al 2014;Di Carro et al 2014) It is generally assumed that under lowflow conditions, the mass transfer of chemicals from water to the sorbent is governed by the water boundary layer. Under highflow conditions, water turbulence causes the water boundary layer to thin out and eventually reach a point where the increase in turbulence no longer affects sampling rates (Harman et al 2012).…”

Section: Effect Of Hydrodynamic Conditions On Pocis Sampling Ratessupporting

confidence: 92%

Effects of hydrodynamic conditions and temperature on polar organic chemical integrative sampling rates

Djomte

Taylor

Chen

et al. 2018

Enviro Toxic and Chemistry

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The effects of changing hydrodynamic conditions and changing temperatures on polar organic chemical integrative sampler (POCIS) sampling rates (R ) were investigated for 12 crop protection chemicals. Exposure concentration was held constant in each laboratory experiment, and flow velocities were calculated from measured mass transfer coefficients of the water boundary layer near the surface of POCIS devices. At a given temperature R generally increased by a factor of 2 to 5 between a stagnant condition and higher flow velocities (6-21 cm/s), but R for most compounds was essentially constant between the higher flow velocities. When temperature was varied between 8 and 39 °C for a given flow condition, R increased linearly. In general, R increased by a factor of 2 to 4 and 2 to 8 over this temperature range under flow and stagnant conditions, respectively. An Arrhenius model was used to describe the dependence of POCIS sampling rates on temperature. Adjustments of R for temperature did not fully explain observed differences between time-weighted average concentrations of atrazine determined from POCIS and from composite water sampling in a field setting, suggesting that the effects of other competing factors still need to be evaluated. Environ Toxicol Chem 2018;37:2331-2339. © 2018 SETAC.

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Section: Effect Of Hydrodynamic Conditions On Pocis Sampling Ratessupporting

confidence: 92%

Effects of hydrodynamic conditions and temperature on polar organic chemical integrative sampling rates

Djomte

Taylor

Chen

et al. 2018

Enviro Toxic and Chemistry

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“…Obtained results are compatible with those obtained from POCIS. Togola and Budzinski [42] and DiCarro [43] investigated the initial analyte concentration impact on the R s of pharmaceuticals. Both teams have not observed any direct dependencies between the concentration of the compound and its extraction efficiency [44].…”

Section: Resultsmentioning

confidence: 99%

Ionic liquids for the passive sampling of sulfonamides from water—applicability and selectivity study

et al. 2017

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Ionic liquids (ILs) are new-generation, non-volatile solvents which are designable, and their structure may be specifically adjusted to the current application needs. Therefore, it is possible to create and apply ILs which efficiently and selectively extract various analytes from different matrices. It has already been examined that ILs may be applied as receiving phases in passive sampling for the long-term water monitoring of PAHs and pharmaceuticals in water. In this paper, the concept of passive sampling with ILs (PASSIL applied as receiving phases) was continued and developed using phosphonium-, imidazolium-, and morpholinium-cation-based ILs. The target group of analytes was pharmaceuticals which represent one of the most common categories of water contaminants. Fourteen-day-long extractions using various ILs were performed in stirred conditions at a constant temperature (20 °C). The best extraction efficiency was achieved for trihexyl(tetradecyl)phosphonium dicyanamide ([P666-14][N(CN)2]). For this preliminary calibration, the sampling rates were calculated for each sulfonamide. Once again, selectivity was observed in passive sampling using [P666-14][N(CN)2]. Therefore, PASSIL is seen as a very promising method for pharmaceutical monitoring in water.Electronic supplementary materialThe online version of this article (doi:10.1007/s00216-017-0342-6) contains supplementary material, which is available to authorized users.

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“…A standard calibration procedure is still lacking and different approaches often involve the use of original laboratory devices, which results in variability in the determined R S values. Even though it is also virtually impossible to consider all the factors operating in the field, laboratory calibration is still the most popular method for evaluating R S (Bartelt-Hunt et al 2011;Li et al 2011;Miege et al 2012;Morin et al 2013;Vallejo et al 2013;Amdany et al 2014a;Bayen et al 2014;Belles et al 2014;Di Carro et al 2014;Kaserzon et al 2014). In situ calibration, at specific sites is more reliable but so far has rarely been used (Harman et al 2011;Jacquet et al 2012;Miege et al 2012;Shi et al 2014) because of the complexity of the process.…”

Section: Calibration Sampling Rates and Performance Of A Reference Smentioning

confidence: 99%

Passive sampling of pharmaceuticals and personal care products in aquatic environments

Křesinová

Petrů

Lhotský

et al. 2016

European Journal of Environmental Sciences

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Passive sampling is a rapidly developing technology, which is widely used for the monitoring of pollutants in different environments. Passive sampling offers significant advantages over traditional grab sampling. In the present review, the authors summarize the current literature on the methods of passive sampling used in the environmental monitoring of polar or semi-polar compounds in aqueous matrices. Methods of calibrating, design and deployment of samplers are also discussed. A major focus of this review is the use of polar organic compound integrative samplers (POCIS) and their use in sampling and monitoring of pharmaceuticals and personal care products (PCPs) in both equilibrium and non-equilibrium conditions.

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A simple recirculating flow system for the calibration of polar organic chemical integrative samplers (POCIS): Effect of flow rate on different water pollutants

Cited by 52 publications

References 20 publications

Effects of hydrodynamic conditions and temperature on polar organic chemical integrative sampling rates

Effects of hydrodynamic conditions and temperature on polar organic chemical integrative sampling rates

Ionic liquids for the passive sampling of sulfonamides from water—applicability and selectivity study

Passive sampling of pharmaceuticals and personal care products in aquatic environments

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