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New Spray Chamber for Use in Flow-injection Plasma Emission Spectrometry by Min Wu; Yoland Madrid; Jake A. Auxier; Gary M. Hieftje is a Chemistry article available to read on EtoBox.

What is New Spray Chamber for Use in Flow-injection Plasma Emission Spectrometry about?

The use of flow-injection analysis @IA) in atomic emission spectrometry (AES) is often compromised by the relatively large dead volume and washout time of conventional nebulizer-spray chamber combinations. This problem is particularly acute when a microwave-induced plasma (MIP) is used as the AES source, because of the low flow rates ordinarily employed with an MIP and because of the limited tolerance of an MIP to solvent loading. In the present study, these problems have all been largely overcome through use of a novel spray chamber design and an MIP based on the microwave plasma torch &iPT1. The MPT offers the advantages of a high tolerance to the introduction of aqueous aerosols, a central channel that exhibits enhanced energy coupling between the plasma and sample species, and low detection limits. A new low-volume spray chamber developed in our laboratory, coupled with the MPT, provides far shorter washout times than conventional units. Preliminary work on analyzing aqueous samples directly without desolvation has demonstrated that the use of air as a carrier has made it possible for a 200-~1 injection volume to achieve the same sensitivity of detection as offered by continuou

Who reads New Spray Chamber for Use in Flow-injection Plasma Emission Spectrometry?

Author

Min Wu; Yoland Madrid; Jake A. Auxier; Gary M. Hieftje

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0003-2670)

Published

1994

Language

EN

Field

Chemistry (Physical Sciences)