A Novel Flow Injection Technique: All Injection Analysis.
نویسندگان
چکیده
منابع مشابه
A novel flow injection technique: all injection analysis.
Water quality control has become extremely important from industrial and environmental view points. Flow injection analysis (FIA) has been increasingly recognized as a valuable tool for such a monitoring system.1 However, some problems exist when FIA is used for a monitoring process. The most important problem is the consumption of large amounts of reagents and carrier solutions during continuo...
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Analyser injection systems based on the principle of flow-injection analysis depend on the technique used. They generally take the form of an injection loop valve; the injected sample volume is determined by the volume of the valve. Injection systems are seldom designed with a time factor to define this volume. The authors report on an original injection system, which enables the two techniques...
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Flow-injection analysis is a precise, elegant, and economical technique, but its most troublesome feature is the mode of injection of the sample slug. We describe an alternative approach in which the sample is aspirated by the sample probe. In the simplest version the probe normally rests in reagent; when sampling is to take place, the pump is stopped and the probe is transferred to the sample ...
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A flow injection method for the quantitative analysis of vancomycin hydrochloride, C66H75Cl2N9O24.HCl (HVCM), based on the reaction with copper (II) ions, is presented. HVCM forms a lilac-blue complex with copper ions at pH≅4.5 in aqueous solutions, with maximum absorption at 555 nm. The detection limit was estimated to be about 8.5×10-5 mol L-1; the quantitation limit is about 2.5×10-4 mol L-1...
متن کاملFlow injection: A new approach in analysis
The manual handling of solutions (known as “beaker chemistry”) remains the Achilles Heel of modern analytical instrumentation. It is currently being replaced by flow injection analysis (FIA), which is computer compatible and allows automated handling of sample and reagent solutions with a strict control of reaction conditions. The flow injection analysis (FIA) was preceded by the success of seg...
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ژورنال
عنوان ژورنال: Analytical Sciences
سال: 2001
ISSN: 0910-6340,1348-2246
DOI: 10.2116/analsci.17.229