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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Construction and Application of Tubular Detector and Porous Flow-through Detector/Reactor of Silver Solid Amalgam for Electrochemical Measurements in Flow Systems
 Josypčuk, Oksana ; Barek, J. ; Josypčuk, Bohdan
This paper presents the preparation and application of two new arrangements of silver solid amalgam (AgSA) electrodes for measurements in flow systems  tubular detector based on compact AgSA, and flow-through detector (or reactor) prepared from porous AgSA. Both electrodes were tested for electrochemical determinations of reducible inorganic (Cd2+, Zn2+) and organic (4-nitrophenol, lomustine) compounds under FIA with amperometric detection (Cd2+, Zn2+, 4-nitrophenol) and flow-DPV (lomustine). Furthermore, by combination of the porous reactor with immobilized enzyme and tubular detector the flow amperometric enzymatic biosensor was constructed for determination of glucose in a sample of honey and cholesterol and sarcosine in model samples.
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Amperometric Determinations of Nitrocompounds with Flow Detector of Silver Solid Amalgam
 Yosypchuk, O. ; Barek, J. ; Josypčuk, Bohdan
In this pilot study, a new type of flow tubular amperometric detector based on silver solid amalgam was introduced. The tubular cell was tested under flow injection analysis for determination of 4-nitrophenol in aqueous solutions. The first results show that this type of detector provides high-quality signals of 4-nitrophenol. However, there are some problems with repeatability of signals caused probably of high sensitivity due to the presence of oxygen, which we shall try remove in further research.
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