Flow-Injection Inductively Coupled Plasma Atomic Emission Spectrometry with a Multielement Photodiode-Array Spectrometer
Abstract:A multichannel photodiode-array spectrometer was used to monitor the transient multielement atomic-emission signal generated by an inductively coupled plasma utilizing flow-injection sample introduction. The linearity, dynamic range, sensitivity, and precision of the technique were assessed for three different sample-loop volumes (110, 290, and 500 μL). With a fixed, optimized integration time, a linear dynamic range of 3.5 orders of magnitude was established for five elements—Cd, Cr, Cu, Mg, and Zn—when the 290- and 500-μL sample loops were used. Because the lateral dispersion of the transient sample plug was low and because efforts were made to optimize the signal-to-background ratio by synchronizing the integration period of the photodiode-array detector with the transient signal, detection limits for the flow-injection system were comparable with those obtained with the use of continuous-nebulization sample introduction. An interface is described which enables temporal synchronization of the transient flow-injection signal with the signal integration period of the photodiode array.
Document Type: Research Article
Affiliations: Department of Chemistry, Indiana University, Bloomington, Indiana 47405
Publication date: November 1, 1990
More about this publication?
- The Society publishes the internationally recognized, peer reviewed journal, Applied Spectroscopy, which is available both in print and online. Subscriptions are included with membership or can be purchased by institutional or corporate organizations. Abstracts may be viewed free of charge. Previously published as Bulletin (Society for Applied Spectroscopy)
- Editorial Board
- Information for Authors
- Submit a Paper
- Subscribe to this Title
- Membership Information
- Request copyrighted SAS materials
- Spectroscopic Nomenclature
- Focal Point (Open Access)
- ingentaconnect is not responsible for the content or availability of external websites