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

Wang, LiYang; Liu, Ruixia; Liu, Xiaoling; Gao, Hongjie

doi:10.3390/app10165548

Cited by 11 publications

(2 citation statements)

References 131 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, changing flow rates, temperature, or biofilms could affect the target compounds' uptake rate. Alternatively, interactions with suspended or dissolved materials near the sediment bed could affect the sampling rate (Wang et al 2020).…”

Section: Kinetic Passive Sampler Derived Concentrations Of Glyphosate...mentioning

confidence: 99%

“…While in the kinetic (integrative) regime, the mass transfer rate to POCIS receiving phase is linearly proportional to the contaminant's water concentration ). If the sampling rate differs from laboratory determined rate or changes with time due to changes in flow rate, temperature, pH, or biofouling (Wang et al 2020), the sampler-determined water concentration may be inaccurate. However, if exposure conditions are similar at the two stations, a single Rs may be used to determine differences between upstream and downstream concentrations.…”

Section: Kinetic Passive Sampler Derived Concentrations Of Glyphosate...mentioning

confidence: 99%

See 1 more Smart Citation

Applying passive sampling to study the environmental transport of contaminants at multiple scales

Sparagna

View full text Add to dashboard Cite

This research explores the application of passive sampling methods to address research questions at different spatial scales, ranging from the sediment-water interface (0.1 m scale) to wetland infrastructure (10 m scale), and riverine systems (100s m scale). Kinetic samplers were employed to assess the potential transport of land-applied pesticides to urban rivers. Additionally, equilibrium air, water, and sediment passive samplers were used to study the impact of tide gates on contaminant transport within a salt marsh. The investigation also involved the use of equilibrium passive samplers in combination with flow-through columns to determine the effects of infiltration and exfiltration on pollutant transport in riverine systems. These passive sampling approaches offer valuable insights into various environmental scenarios and provide critical data for understanding contaminant dynamics across different spatial scales.

show abstract

Section: Kinetic Passive Sampler Derived Concentrations Of Glyphosate...mentioning

confidence: 99%

Section: Kinetic Passive Sampler Derived Concentrations Of Glyphosate...mentioning

confidence: 99%

Applying passive sampling to study the environmental transport of contaminants at multiple scales

Sparagna

View full text Add to dashboard Cite

show abstract

Organic Micropollutants in the Freshwater Ecosystem: Environmental Effects, Potential Treatments, and Limitations

Sharma,

Jadeja,

Gosai

et al. 2024

Organic Micropollutants in Aquatic and Terrestrial Environments

View full text Add to dashboard Cite

Combination of different chromatographic and sampling modes for high-resolution mass spectrometric screening of organic microcontaminants in water

et al. 2021

View full text Add to dashboard Cite

Text S1: Chromatographic conditionsTable S1: List of chemicals included in the accurate mass MS/MS spectral library (included as a separate file) Table S2: Compounds identified in the effluent wastewater sample by the different sampling strategies (POCIS sorbent, POCIS membrane and spot water) injected in the four chromatographic modes (RPLC, HILIC, MMLC and SFC). Detections are coded as 1, while nondetections are coded as 0. Text S1: Chromatographic conditionsRPLC separation was carried out with a ZORBAX Extend-C18 1.8 µm (2.1 x 50 mm) column supplied by Agilent Technologies, connected to a Supelco ColumnSaver 0.5 µm Precolumn Filter (Supelco, Bellefonte, PA, USA). The temperature at the column was fixed at 35 °C and a 2 µL aliquot of the sample was injected. As mobile phases, methanol (A) and water (B) both with 0.1% formic acid (pH 2.7) were used at flow rate of 0.4 mL/min. The gradient elution started with 98% A, increasing to 100% B in 22 min, held for 4 min. Subsequently, it returned to initial conditions (98% A) and was held for 4 min for column back-conditioning.HILIC separation was adapted from Schulze et al. [1] and carried out with an EC 150/2 NUCLEODUR HILIC 3 µm (2 x 150 mm) column supplied by Macherey Nagel (Düren, Germany), connected to a Supelco ColumnSaver 0.5 µm Precolumn Filter. The temperature at the column was fixed at 35 °C and a 2 µL aliquot of the sample was injected. As mobile phases, a mixture of water-acetonitrile (95:5 v/v) containing 5 mM ammonium formate (apparent pH 2.9) (A) and a mixture of acetonitrile-water (95:5 v/v) also with 5 mM ammonium formate (apparent pH 2.9) (B) were used at flow rate of 0.2 mL/min. The gradient elution started with 100% B, increasing to 50% A in 12 min, held for 8 min. Subsequently, it returned to initial conditions (100% B) and was held for 10 min for column back-conditioning.MMLC separation was carried out with an Acclaim Trinity P1 3 µm (2.1 x 50 mm) column supplied by Thermo Scientific (San Jose, CA, USA), connected to a Supelco ColumnSaver 0.5 µm Precolumn Filter, based on the work of Montes et al. [2] The temperature at the column was fixed at 35 °C and a 2 µL aliquot of the sample was injected. As mobile phases, a mixture of water-acetonitrile (98:2 v/v) with 5 mM ammonium acetate (apparent pH 5.5) (A) and a mixture of acetonitrile-water (80:20 v/v) with 20 mM ammonium acetate (apparent pH 5.5) (B) were used at flow rate of 0.2 mL/min. The gradient elution started with 98% A, increasing to 100% B in 10 min, held for 10 min. Subsequently, it returned to initial conditions (98% A) and was held for 10 min for column back-conditioning.SFC separation was carried out with a Torus DIOL 1.7 µm (3.0 x 100 mm) column supplied by Waters Corporation (Milford, MA, USA), connected to a Supelco ColumnSaver 0.5 µm Precolumn, adapting a protocol proposed by Schulze et al. [1]. The temperature at the column was fixed at 45 °C and a 2 µL aliquot of the sample was injected. As mobile phases, supercritical CO 2 (A) and methanol (0.2% ammonia) (B) were used at flow r...

show abstract

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

Cited by 11 publications

References 131 publications

Applying passive sampling to study the environmental transport of contaminants at multiple scales

Applying passive sampling to study the environmental transport of contaminants at multiple scales

Organic Micropollutants in the Freshwater Ecosystem: Environmental Effects, Potential Treatments, and Limitations

Combination of different chromatographic and sampling modes for high-resolution mass spectrometric screening of organic microcontaminants in water

Contact Info

Product

Resources

About