A computer-controlled potentiometric/spectrophotometric titrator

A laboratory computer controlled potentiometric titrator interfaced to a diode array spectrophotometer is described. The titrator consists of widely used, commercially available components; therefore, major attention is given to modes of interconnection and software implementation in data format and...

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Detalles Bibliográficos
Autor principal: Stong, John D.
Formato: Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 1988
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2547744/
https://www.ncbi.nlm.nih.gov/pubmed/18925194
http://dx.doi.org/10.1155/S1463924688000185
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author Stong, John D.
author_facet Stong, John D.
author_sort Stong, John D.
collection PubMed
description A laboratory computer controlled potentiometric titrator interfaced to a diode array spectrophotometer is described. The titrator consists of widely used, commercially available components; therefore, major attention is given to modes of interconnection and software implementation in data format and system control. Replicate potentiometric titrations of glycines gave a relative standard deviation in titre of 1.035% and a relative standard deviation in pH of 0.745%. Replicate spectrophotometric titrations of bromophenol blue were analysed at three wavelengths to yield pKa= 3.898 ± 0.075 (1.9% rsd). Methods of data presentation and manipulation are presented.
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spelling pubmed-25477442008-10-16 A computer-controlled potentiometric/spectrophotometric titrator Stong, John D. J Automat Chem Research Article A laboratory computer controlled potentiometric titrator interfaced to a diode array spectrophotometer is described. The titrator consists of widely used, commercially available components; therefore, major attention is given to modes of interconnection and software implementation in data format and system control. Replicate potentiometric titrations of glycines gave a relative standard deviation in titre of 1.035% and a relative standard deviation in pH of 0.745%. Replicate spectrophotometric titrations of bromophenol blue were analysed at three wavelengths to yield pKa= 3.898 ± 0.075 (1.9% rsd). Methods of data presentation and manipulation are presented. Hindawi Publishing Corporation 1988 /pmc/articles/PMC2547744/ /pubmed/18925194 http://dx.doi.org/10.1155/S1463924688000185 Text en Copyright © 1988 Hindawi Publishing Corporation. http://creativecommons.org/licenses/by/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Stong, John D.
A computer-controlled potentiometric/spectrophotometric titrator
title A computer-controlled potentiometric/spectrophotometric titrator
title_full A computer-controlled potentiometric/spectrophotometric titrator
title_fullStr A computer-controlled potentiometric/spectrophotometric titrator
title_full_unstemmed A computer-controlled potentiometric/spectrophotometric titrator
title_short A computer-controlled potentiometric/spectrophotometric titrator
title_sort computer-controlled potentiometric/spectrophotometric titrator
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2547744/
https://www.ncbi.nlm.nih.gov/pubmed/18925194
http://dx.doi.org/10.1155/S1463924688000185
work_keys_str_mv AT stongjohnd acomputercontrolledpotentiometricspectrophotometrictitrator
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