Automated Determination of Linear Alkylbenzene Sulphonate (LAS) in Wastewater Treatment Plants Effluents Using on Line Solid-phase Extraction Followed by HPLC with Fluorescence Detection
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C. Crey-Desbiolles
Abstract
An on line SPE (solid-phase extraction) method followed by HPLC with fluorescence detection has been developed and validated for determining the LAS in inlet and outlet effluents of wastewaters treatment plants. Filtered effluent samples were on line concentrated on a small polymeric reversed phase column, then the trapped LAS are separated on a specialty polar-embedded reversed-phase column and detected by a fluorimeter. The on line SPE method with fluorescence detection showed very good repeatability (from 1.5 to 11.7% depending on the sample loading volume) and robustness with detection limits of 1.5 μg l−1 for total C10–13 LAS loading a 5 ml sample volume. This automated method is a cost-effective way to determine LAS also in routine monitoring of inlets and outlets of wastewater treatment plants allowing to optimize treatment procedures.
Kurzfassung
Eine online Festphasenextraktion (solid phase extraction; SPE) mit nachfolgender HPLC und Fluoreszenz-Detektion wurde zur Bestimmung von LAS im Zulauf und Ablauf von Kläranlagen entwickelt und validiert. Die filtrierten Abwasserproben wurden online auf einer kurzen unpolaren Säule aufkonzentriert. Danach wurden die adsorbierten LAS auf einer speziellen polaren RP-Trennsäule (polar-embedded) eluiert, getrennt und mit Fluoreszenz-Detektion nachgewiesen. Die online SPE-Methode weist eine sehr gute Wiederholbarkeit (von 1,5 bis 11,7% abhängig vom aufgegebenen Probenvolumen) und hohe Robustheit mit Nachweisgrenzen von 1,5 μg l−1 für C10–13 LAS bei 5 mL Probenvolumen auf. Diese automatisierte Methode ist eine kostengünstige Möglichkeit zur Bestimmung von LAS auch in der Routineüberwachung von Zu- und Abläufen von Kläranlagen.
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© 2009, Carl Hanser Publisher, Munich
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- Effect of Oleate/Bacteria Interactions on Dolomite Separation from Phosphate Ore
- Environmental Chemistry
- Automated Determination of Linear Alkylbenzene Sulphonate (LAS) in Wastewater Treatment Plants Effluents Using on Line Solid-phase Extraction Followed by HPLC with Fluorescence Detection
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Articles in the same Issue
- Contents/Inhalt
- Contents
- Abstracts
- Abstracts
- Application
- Ultrasonic Assisted Finishing of Cotton with Nonionic Softener
- Effect of Oleate/Bacteria Interactions on Dolomite Separation from Phosphate Ore
- Environmental Chemistry
- Automated Determination of Linear Alkylbenzene Sulphonate (LAS) in Wastewater Treatment Plants Effluents Using on Line Solid-phase Extraction Followed by HPLC with Fluorescence Detection
- Novel Surfactants
- Effect of Calcium Ions Concentration on the Foaming Power of Anionic Surfactants
- Lauryl Trimethyl Ammoniums with New Type Counteranions
- Physical Chemistry
- Extraction of Copper(II) from Sulphate Aqueous Medium with N,N′-bis(2-hydroxy-1-naphthalideneaminoethyl)amine Polydentate Schiff Base in Aqueous Two-phase Micellar of Non-Ionic Surfactant
- Effect of Cellulase Enzyme on Cellulose Nano-topography
- Review
- Synthesis, Structural Properties and Applications of Gemini Surfactants: A Review
