Evaluation of polar organic chemical integrative and hollow fibre samplers for the determination of a wide variety of organic polar compounds in seawater

Talanta
Leire MijangosNestor Etxebarria

Abstract

The calibration of two passive samplers for the determination of 20 emerging organic compounds in seawater is described in this work: i) a new version of polar organic chemical integrative sampler (POCIS) containing 100 mg of mixed-mode anion exchanger (Strata X-AW) and 100 mg of polymeric HLB (Plexa) sorbent materials and using a highly porous Nylon membrane (30-μm pore size) and ii) polyethersulfone (PES) hollow fibre. Among the studied contaminants, herbicides, hormones, life style products (stimulants and artificial sweeteners), industrial chemicals (corrosion inhibitor and fluorinated compounds), personal care products and several pharmaceuticals were included. In the case of POCIS, both the sorbents and the Nylon membranes were extracted and analysed independently. The calibration set up consisted on a continuous-flow tank that was fed with a continuous flow of seawater (2 L/h) and a stock mixture of contaminants (20 mL/h), assuring a nominal concentration of ~ 600 ng/L (each analyte) in the tank. The uptake was linear in POCIS sorbent and Nylon membranes but exponential for PES hollow fibres. Furthermore, the highest sampling rates (Rs) values were obtained in POCIS sorbent (between 2.7 for acetaminophen and 491 mL/day f...Continue Reading

Citations

Jun 18, 2019·Critical Reviews in Analytical Chemistry·Klaudia GodlewskaMonika Paszkiewicz
Oct 11, 2019·Critical Reviews in Analytical Chemistry·Adam C TaylorGraham A Mills
Jun 20, 2019·Environmental Science and Pollution Research International·Leire MijangosNestor Etxebarria
Apr 30, 2021·Analytical Methods : Advancing Methods and Applications·B González-GayaO Zuloaga

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