An Easy-to-Construct Automated Winkler Titration System

Friederich, Gernot E. and Codispoti, Louis A. and Sakamoto, Carole M. (1991) An Easy-to-Construct Automated Winkler Titration System. Moss Landing, CA, Monterey Bay Aquarium Research Institute, (MBARI Technical Report, 91-6)

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The instrument described in this report is an updated version of the high precision, automated Winkler titration system described by Friederich et al.(1984). The original instrument was based on the work of Bryan et al. (1976) who developed a colorimetric endpoint detector and on the work of Williams and Jenkinson (1982) who produced an automated system that used this detector. The goals of our updated version of the device described by Friederich et al. (1984) were as follows: 1) Move control of the system to the MS-DOS environment because HP-85 computers are no longer in production and because more user-friendly programs could be written using the IBM XT or AT computers that control the new device. 2) Use more "off the shelf" components and reduce the parts count in the new system so that it could be easily constructed and maintained. This report describes how to construct and use the new automated Winkler titration device. It also includes information on the chemistry of the Winkler titration, and detailed instructions on how to prepare reagents, collect samples, standardize and perform the titrations (Appendix I: Codispoti, L.A. 1991 On the determination of dissolved oxygen in sea water, 15pp.). A disk containing the program needed to operate the new device is also included. (pdf contains 33 pages)

Item Type: Monograph or Serial Issue
Title: An Easy-to-Construct Automated Winkler Titration System
Personal Creator/Author:
Friederich, Gernot E.
Codispoti, Louis A.
Sakamoto, Carole M.
Series Name: MBARI Technical Report
Number: 91-6
Date: 1991
Publisher: Monterey Bay Aquarium Research Institute
Place of Publication: Moss Landing, CA
Uncontrolled Keywords: Winkler titration; dissolved oxygen
Subjects: Chemistry
Item ID: 1974
Depositing User: Joan Parker
Date Deposited: 01 Apr 2009 14:08
Last Modified: 29 Apr 2015 21:12

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