Operator-free flow injection analyser
نویسندگان
چکیده
منابع مشابه
Operator-free flow injection analyser
A flow injection analyser has been constructed to allow an operator-free determination of up to 40 samples. Besides the usual FIA apparatus, the analyser includes a home-made sample introduction device made with three electromechanical three-way valves and an auto-sampler from Technicon which has been adapted to be commanded by an external digital signal. The analyser is controlled by a single ...
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Flow-injection analysis (FIA) has become popular in many laboratories due to its flexibility. FIA is a type of continuousflow analysis which uses an analytical stream, unsegmented by air bubbles, into which highly reproducible volumes of sample are injected. Application of this principle to automated or semiautomated analysis yields a fast, precise, accurate and extremely versatile system that ...
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An automated routine method was developed for the determination of trace metals using a flow injection system into a direct current plasma spectrometer. The characteristic emission in the 'Spectra- Metrics' three-electrode jet is channelled through an echelle grating to the detector of the instrument. The emission signal is continuously recorded, and, after digitalization, calculated and record...
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Minor modifications to a Coleman MAS-50A Mercury Analyser System allowed the determination of mercury by flow injection analysis. Using sample volumes of 600 mul it was possible to analyse up to 120 samples per hour, with a detection limit of 0.2 mug. l(-1) (120 pg) of mercury. The authors also report on a simple digestion procedure which replaces the time- and reagent-consuming EPA procedure, ...
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This study presents a flow injection system for the sequential determination of free (CN(-)) and total (CN(-)+ HCN) cyanide using a potentiometric method which employs two different processes for the determination of these two chemical species. The first process is based on direct detection of CN(-) using an ion-selective electrode for cyanide. In the second process, the sample is mixed with ac...
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ژورنال
عنوان ژورنال: Journal of Automatic Chemistry
سال: 1991
ISSN: 0142-0453
DOI: 10.1155/s1463924691000275