Journal
JOURNAL OF SEPARATION SCIENCE
Volume 41, Issue 13, Pages 2790-2798Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201800129
Keywords
cellulose; emerging contaminants; gas chromatography; polypyrrole; solid-phase extraction
Categories
Funding
- CNPq
- CAPES foundation
Ask authors/readers for more resources
In this study, a simple, efficient, and reusable device based on cellulose membranes modified with polypyrrole was developed to extract 14 emerging contaminants from aqueous matrices. For chemical polymerization, a low-cost cellulose membrane was immersed in 0.1 mol/L pyrrole and 0.5 mol/L ammonium persulfate for 40 min in an ice/water bath. The cellulose membranes modified with polypyrrole were accommodated in a polycarbonate holder suitable for solid-phase extraction disks. Solidphase extraction parameters that affect extraction efficiency, such as sample volume, pH, flow rate, and desorption were optimized. Subsequently, determination of target compounds was performed by gas chromatography with mass spectrometry. The linear range for analytes ranged from 0.05 to 500 mu g/L, with coefficients of determination above 0.990. The limits of quantification varied between 0.05 and 10 mu g/L, with relative standard deviations lower than 17%. The performance of the proposed cellulose membranes modified with polypyrrole device for real samples was evaluated after extraction of emerging contaminants from a river water sample from the city of Curitiba, Brazil. Bisphenol A (6.39 mu g/L), caffeine (17.83 mu g/L), and paracetamol (19.28 mu g/L) were found in these samples.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available