Laboratory calibration of twelve pesticides using polar organic chemical integrative samplers

Thomatou, Anna-Akrivi; Αντωνοπούλου, Μαρία; Michail, Foteini; Konstantinou, Ioannis

doi:10.1080/03067319.2015.1070405

Cited by 5 publications

(3 citation statements)

References 43 publications

(64 reference statements)

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“…The summary of R s values from 23 previous studies are presented in Figure 3. The further statistical analysis of data revealed a substantial positive correlation between water flow rate and the R s values due to the rise in diffusion rate and the decrease of WBL thickness by increasing turbulence [13,21,26,27,[41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59]. Not surprisingly, however, a significant variability was observed in the R s /A values, ranging from 4.73 × 10 −5 to 1.63 × 10 −1 L/cm 2 /d at flow rate from unstirring to 16.75 cm/s since different pH values, various temperatures, and diverse analytes were used in the calibration experiments from the literature [44,53,57,58].…”

Section: Water Flow Ratementioning

confidence: 99%

“…However, Bartelt et al [26] performed a regression analysis to determine the relationship between molecular mass of compounds and the R s for the neutral compounds; unfortunately, no clear linear correlation was observed between both variables. Additionally, the data summary of the R s values of POCIS determined in 23 previous studies [13,21,26,27,[41][42][43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59] for different chemicals with various molecular mass was presented in Figure 4. As expected, a large scattering between R s values and molecular mass was obtained with a relative weak relationship (R 2 = 0.011), which was mainly due to a combined effect of solute-sorbent-solution on the R s value, such as the interaction between chemical function groups of analytes and sorbents.…”

Section: Influence Of Pollutant Nature On R Smentioning

confidence: 99%

“…/d at flow rate from unstirring to 16.75 cm/s since different pH values, various temperatures, and diverse analytes were used in the calibration experiments from the literature[44,53,57,58]. observed in the Rs/A values, ranging from 4.73 × 10 −5 to 1.63 × 10 −1 L/cm 2 /d at flow rate from unstirring to 16.75 cm/s since different pH values, various temperatures, and diverse analytes were used in the calibration experiments from the literature[44,53,57,58].…”

mentioning

confidence: 99%

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Sampling Rate of Polar Organic Chemical Integrative Sampler (POCIS): Influence Factors and Calibration Methods

Wang

Liu

et al. 2020

Applied Sciences

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As a passive sampling device, the polar organic chemical integrative sampler (POCIS) has the characteristics of simple operation, safety, and reliability for assessing the occurrence and risk of persistent and emerging trace organic pollutants. The POCIS, allowing for the determination of time-weighted average (TWA) concentration of polar organic chemicals, exhibits good application prospects in aquatic environments. Before deploying the device in water, the sampling rate (Rs), which is a key parameter for characterizing pollutant enrichment, should be determined and calibrated accurately. However, the Rs values strongly depend on experimental hydrodynamic conditions. This paper provides an overview of the current situation of the POCIS for environmental monitoring of organic pollutants in an aquatic system. The principle and theory of the POCIS are outlined. In particular, the effect factors such as the ambient conditions, pollutant properties, and device features on the Rs are analyzed in detail from aspects of impact dependence and mechanisms. The calibration methods of the Rs under laboratory and in situ conditions are summarized. This review offers supplementary information on comprehensive understanding of mechanism and application of the POCIS. Nevertheless, the Rs were impacted by a combined effect of solute–sorbent–membrane–solution, and the influence extent of each variable was still unclear. On this basis, the ongoing challenges are proposed for the future application of the POCIS in the actual environment, for instance, the need for this device to be improved in terms of quantitative methods for more accurate measurement of the Rs.

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Section: Water Flow Ratementioning

confidence: 99%

Section: Influence Of Pollutant Nature On R Smentioning

confidence: 99%

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confidence: 99%

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Sampling Rate of Polar Organic Chemical Integrative Sampler (POCIS): Influence Factors and Calibration Methods

Wang

Liu

et al. 2020

Applied Sciences

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Pollutant analysis using passive samplers: principles, sorbents, calibration and applications. A review

2020

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Passive techniques are a constantly evolving method of monitoring water pollution, allowing the simultaneous sampling and concentration of selected chemical compounds. The most popular aqueous passive samplers are those in which sorbents are used as receiving phases, including: the Polar Organic Chemical Integrative Sampler (POCIS). Originally, POCIS contained the copolymer poly(divinylbenzene)-coN -vinylpyrrolidone, which allowed the collection of analytes with 0 ≤ log K ow ≤ 5, The limitation of the use of conventional samplers for sampling water pollutants only with a specific polarity has resulted in the fact that innovative sorbents are used more and more in POCIS-like samplers. In recent years, application of several innovative sorbents in POCIS-like samplers, for example: mixed-mode ion exchange polymeric sorbents, ionic liquids, molecularly imprinted polymers and carbon nanotubes has been described. This is the first review in which the usability of classical and innovative sorbents used in passive techniques principles has been collected and compared, and it has been shown that the type of sorbent can significantly affect the efficiency of sampling pollutants in the aquatic environment. The major points are the following: 1) principle of operation, of passive samplers, 2) characteristics of POCIS and sorbents used as receiving phases, 3) sampler calibration methods and environmental factors affecting their operation, 4) a detailed description of the application possibilities of conventional and innovative sorbents used in POCIS-like samplers. This review shows the growing number of works on the use of innovative sorption materials to overcome limitation of originally designed POCIS, and the published results, allow us to conclude that the type of sorbent may be a key factor in increasing the applicability of POCIS-like samplers.

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Comparison of POCIS passive samplers vs. composite water sampling: A case study

Criquet

Dumoulin

Howsam

et al. 2017

Science of The Total Environment

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Laboratory calibration of twelve pesticides using polar organic chemical integrative samplers

Cited by 5 publications

References 43 publications

Sampling Rate of Polar Organic Chemical Integrative Sampler (POCIS): Influence Factors and Calibration Methods

Sampling Rate of Polar Organic Chemical Integrative Sampler (POCIS): Influence Factors and Calibration Methods

Pollutant analysis using passive samplers: principles, sorbents, calibration and applications. A review

Comparison of POCIS passive samplers vs. composite water sampling: A case study

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