Comparative study of on-line solid phase extraction followed by UV and electrochemical detection in liquid chromatography for the determination of priority phenols in river water samples

✍ Scribed by D. Puig; D. Barceló

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 545 KB
• Volume: 311
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(95)00188-6

✦ Synopsis

A comparative study between UV and electrochemical (EC) detectors was carried out for the determination of 16 priority phenols in water samples. Polystyrene was used as a sorbent in on-line solid phase extraction followed by liquid chromatography with UV and electrochemical detection (LC-UV and LC-EC, respectively). Detection limits down to 1 rig/l were obtained for all chlorinated phenolics with 100 ml sample volume. By reducing the sample volume to 10 ml it was possible to detect phenol at 0.02 pg/l. Values below the concentration levels required by current legislation were obtained for all target compounds in LC-EC except for nitrophenols because the selected working potential was not optimal for these compounds.