University of North Florida
Browse the Citations

Contact Info

Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

View Stuart Chalk's profile on LinkedIn


Classification: Metal -> zirconium

Citations 1

"Rapid Flow Analysis With Inductively Coupled Plasma Atomic Emission Spectroscopy Using A Micro-injection Technique"
Analyst 1982 Volume 107, Issue 1280 Pages 1335-1342
P. W. Alexander, R. J. Finlayson, L. E. Smythe and A. Thalib

Abstract: An introduction system for liquid micro-samples in inductively coupled plasma atomic-emission spectroscopy is described that allows the injection of 5-500 µL volumes into a rapidly flowing carrier reagent stream leading to the nebuliser. The effect on analyte signal was studied as a function of flow-rate, injection volume and sample concentration. It is shown that the carrier flow-rate determines the response time, sensitivity, precision and sample carry-over in the nebuliser. By the use of relatively rapid flow-rates of up to 7.5 mL min-1, fast injection of 10 µL samples is achieved at an injection rate of 240 h-1 with a relative standard deviation of 1.5% for a single-element analogue readout. Digital readout is used for multi-element determinations with similar or better precision. Detection limits of the order of 0.1 mg l-1 are obtained for 10 µL injections, limited by the volume injected, with a proportionate decrease in detection limit for increasing volumes.
Calcium Magnesium Iron Potassium Sodium Clinical analysis Spectrophotometry Injection technique