106590 Preconcentration of Divalent Trace Metals on Chelating Silicas Followed by On-Line Chromatography

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Preconcentration of Divalent Trace Metals on Chelating Silicas Followed by On-Line Chromatography

Summary

Type: HPLC
Application #: 106590
Detection: postcolumn reagent 5·10-4M PAR, 5·10-5M ZN-EDTA, pH 11, flow rate 0.7ml/min; detection: UV-VIS, 500nm
Conditions: eluent: 0.1M nitric acid, flow rate 1.2ml/min, for desorption of precolumn, mixed with 0.5M tartaric acid, pH 4.2 adjusted with NaOH, containing pentachlorophenol solution to prevent bacterial growth
flow rate 0.24ml/min
Authors: Chambaz D
Source: J Chromatogr 541 (1991) 443 - 452


Details


Legend: Fig. 1. Analysis of river Arve water with on-line preconcentration A) blank, B) 50ml filtered river water C) 50ml filtered river water spiked with 10-7M of each metal ion.