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A Versatile and Economical Automated Titration Apparatus

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Bradley Hernlem

United States Enviromental Protection Agency, National Risk Management Research Laboratory, 26 W. Martin Luther King Drive, Cincinnati, OH 45268

J. Chem. Educ., 1996, 73 (9), p 878

DOI: 10.1021/ed073p878

Publication Date (Web): September 1, 1996

Abstract

A versatile and economical computer automated precision titration apparatus is described, comprised of a PC, pH meter, syringe drive, optoisolator and titration vessel. The peripheral devices are controlled by the PC through RS-232 serial cables utilizing custom titration software. Considerations for designing control and data acquisition algorithms are discussed. Sample programs are made available for use in performing fixed aliquot and end-point titrations.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Feature):

Computer Series

Keywords (Pedagogy):

Computer-Based Learning

Keywords (Subject):

Titration / Volumetric Analysis

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Citing Articles

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This article has been cited by 2 ACS Journal articles (2 most recent appear below).

A Simple Laboratory-Constructed Automatic Titrator
Kurt L. Headrick , Terry K. Davies and Aaron N. Haegele
Journal of Chemical Education2000 77 (3), 389
- A Simple Laboratory-Constructed Automatic Titrator
  Kurt L. Headrick , Terry K. Davies and Aaron N. Haegele
  Journal of Chemical Education2000 77 (3), 389
  The construction of a simple automatic titrator is described. The buret is replaced with a metering pump to provide a constant flow of titrant. The output from the pH meter is sent to a recorder via a laboratory-constructed differentiator, allowing the ...
  Abstract | Hi-Res PDF | PDF w/ Links
A Low-Cost Device for Automatic Photometric Titrations
Fábio R. P. Rocha , Boaventura F. Reis
Journal of Chemical Education2000 77 (2), 258
- A Low-Cost Device for Automatic Photometric Titrations
  Fábio R. P. Rocha , Boaventura F. Reis
  Journal of Chemical Education2000 77 (2), 258
  Electronics is an important topic in chemistry courses. However, the introduction of basic concepts is often difficult and the lab instruments are frequently seen as "black boxes". To address this problem, we propose the construction of a simple, low-cost ...
  Abstract | Hi-Res PDF | PDF w/ Links