Polypyrrole‐magnetite dispersive micro‐solid‐phase extraction combined with ultraviolet‐visible spectrophotometry for the determination of rhodamine 6G and crystal violet in textile wastewater

Polypyrrole‐magnetite dispersive micro‐solid‐phase extraction method combined with ultraviolet‐visible spectrophotometry was developed for the determination of selected cationic dyes in textile wastewater. Polypyrrole‐magnetite was used as adsorbent due to its thermal stability, magnetic properties,...

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Bibliographic Details
Published in:Journal of separation science 2017-11, Vol.40 (21), p.4256-4263
Main Authors: Kamaruddin, Amirah Farhan, Sanagi, Mohd Marsin, Wan Ibrahim, Wan Aini, Md. Shukri, Dyia S., Abdul Keyon, Aemi S.
Format: Article
Language:English
Subjects:
Acetonitrile
Adsorbents
Cationic dyes
Crystals
Desorption
Dispersion
dispersive micro‐solid‐phase extraction
Dyes
Extraction processes
Linearity
Magnetic properties
Magnetite
organic‐inorganic hybrid adsorbent
Rhodamine 6G
Solids
Spectrophotometry
textile wastewater
Thermal stability
Ultraviolet
Wastewater
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Summary:Polypyrrole‐magnetite dispersive micro‐solid‐phase extraction method combined with ultraviolet‐visible spectrophotometry was developed for the determination of selected cationic dyes in textile wastewater. Polypyrrole‐magnetite was used as adsorbent due to its thermal stability, magnetic properties, and ability to adsorb Rhodamine 6G and crystal violet. Dispersive micro‐solid‐phase extraction parameters were optimized, including sample pH, adsorbent amount, extraction time, and desorption solvent. The optimum polypyrrole‐magnetite dispersive micro‐solid phase‐extraction conditions were sample pH 8, 60 mg polypyrrole‐magnetite adsorbent, 5 min of extraction time, and acetonitrile as the desorption solvent. Under the optimized conditions, the polypyrrole‐magnetite dispersive micro‐solid‐phase extraction with ultraviolet‐visible method showed good linearity in the range of 0.05–7 mg/L (R2 > 0.9980). The method also showed a good limit of detection for the dyes (0.05 mg/L) and good analyte recoveries (97.4–111.3%) with relative standard deviations 
ISSN:1615-9306
1615-9314
DOI:10.1002/jssc.201700659