Application of the Hall™ electrolytic conductivity detector for the analysis of chloroanilines and chloronitroanilines in POTW sludges

✍ Scribed by Lopez-Avila, V. ;Northcutt, R.

• Book ID: 102893292
• Publisher: John Wiley and Sons
• Year: 1982
• Tongue: English
• Weight: 522 KB
• Volume: 5
• Category: Article
• ISSN: 0935-6304
• DOI: 10.1002/jhrc.1240050202

✦ Synopsis

Abstract

Simultaneous detection with a 700‐A Hall™ and an NPD detector is an effective technique for characterizing chloro‐and chloronitroanilines in highly complex Publicly Owned Water Treatment Works (POTW) sludges. The utilization of a modified Varian effluent splitter and a SE‐54 fused silica capillary column permitted the detection of mid‐picogram quantities of the polar chloroanilines without sacrificing peak shape. The response of the Hall™ detector in the halogen mode was roughly proportional to the number of chlorine atoms present, while the response of the Hall™ in the nitrogen mode and the NPD was less predictably influenced by the presence of one or more nitro groups. When combined with retention time data, the ratio of the NPD response to the Hall™ response has been found to substantiate the presence of chloro‐ and chloronitroanilines in sludge extracts.