University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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Kemia - Kemi

  • Publisher:
  • FAD Code: KMKI
  • CODEN: KMKMAA
  • ISSN: 0355-1628
  • Abbreviation: Kem. Kemi
  • DOI Prefix: NA
  • Language: English

Citations 3

"Process Analytical Chemistry - A New Direction In Analytical Chemistry"
Kem. Kemi 1988 Volume 15, Issue 5 Pages 465-468
Ivaska, A.

Abstract: The applications are discussed of process analytical chemistry in the chemical industry, particularly in the development of sensing devices capable of measuring concentration. of species directly in the process. Knowledge obtained in process analytical chemistry can also be applied where continuous monitoring and a feedback control system are used.
Closed loop Process control Review

"Flow Injection Analysis. A Dynamic Method Of Analysis"
Kem. Kemi 1986 Volume 13, Issue 5 Pages 494-499
Ivaska, A.

Abstract: The principles of flow injection analysis are reviewed. (23 references).
Review

"Studies On Ion Selective Electrodes. 1. Automatic Data Acquisition System For Potentiometric Measurements"
Kem. Kemi 1978 Volume 5, Issue 10 Pages 460-463
Virtanen, R.

Abstract: An automatic data acquisition system was constructed for simultaneous measurements with up to 5 ion-selective electrodes. The potentials of the different electrodes are multiplexed, converted into digital form, and collected on magnetic tape with the aid of an off-line computer terminal. A high impedance amplifier (>1012 .OMEGA.) is located in each channel before the multiplexer, and a digital pH meter serves as the converter. With the control unit the operator can start and stop an experiment, choose the time interval between subsequent measuring cycles (from 0.5-1.5 s, depending on the number of channels, to 99 s), and choose the number of channels (1-5). Manual control can be used to choose any single channel to be followed. Collected data can later be processed by a computer. Examples are given of the use of the system in automatic calibration and long-term testing of electrode stability and in quant. flow injection analysis of multi-ion solutions with several electrodes.
Electrode Potentiometry Computer Simultaneous analysis Apparatus Calibration