منابع مشابه
Flow injection analysis of vancomycin
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 کاملControlled dispersion analysis: flow-injection analysis without injection.
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 ...
متن کاملA versatile injection system for flow-injection analysis
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...
متن کاملA 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...
متن کاملAnalysis of Transient Flow in the Case of Secondary Injection for Transient Vector Control (RESEARCH NOTE)
The purpose of this paper is to analyze the flow field structure in transient state and performance of secondary injection system for thrust vectoring in divergent section of a two-dimensional nozzle. Secondary injection for thrust vectoring in a two-dimensional nozzle is studied by solving three-dimensional Reynolds-averaged equations by means of fluent solver. Spalart-allmaras model was used ...
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ژورنال
عنوان ژورنال: Eclética Química Journal
سال: 2018
ISSN: 1678-4618
DOI: 10.26850/1678-4618eqj.v33.2.2008.p67-72