Instrumental Analysis Open Access Centre, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, LT44404 Kaunas, Lithuania.
Anal Methods. 2021 Jan 7;13(1):141-146. doi: 10.1039/d0ay01882a. Epub 2020 Dec 15.
In this work, the design and characterization of a multi-cell capacitively coupled contactless conductivity detection system are described. The operation and simultaneous acquisition from 3 detector cells are demonstrated, however, the system is capable of supplying 8 detection cells and can be easily upgraded to maintain 64 capacitively coupled contactless conductivity detection cells. On performing flow-injection analysis, the system recorded as low as 0.01 mM of acetic acid, phosphoric acid, NaHPO and NaBO solutions in water. The instrument was also capable of recording and distinguishing different mixtures of organic solvents: (a) methanol-acetonitrile, (b) hexane-acetone. The designed detection system is expected to be used coupled with multi-channel separation devices for monitoring simultaneous processes.
本工作描述了一种多池电容耦合非接触电导检测系统的设计与特性。该系统可同时对 3 个检测池进行操作和采集，但也可供应 8 个检测池，并可轻松升级以维持 64 个电容耦合非接触电导检测池。在进行流动注射分析时，该系统可记录低至 0.01mM 的乙酸、磷酸、NaHPO 和 NaBO 在水中的溶液。该仪器还能够记录和区分不同的有机溶剂混合物：(a)甲醇-乙腈，(b)己烷-丙酮。设计的检测系统有望与多通道分离装置结合使用，以监测同时进行的过程。
