Journal of Medical Engineering & Technology 1990-01-01

A combined TDDA-PVC pH and reference electrode for use in the upper small intestine.

G T McEwan, M L Lucas, M Denvir, M Raj, K E McColl, R I Russell, V I Mathan

Index: J. Med. Eng. Technol. 14(1) , 16-20, (1990)

Full Text: HTML

Abstract

Incorporation of a ligand into polyvinylchloride allows the production of ion selective electrodes that are soft-bodied and disposable. With features make them especially suitable for clinical, particularly gastroenterological, investigations. We report here on the construction of a combined reference and pH electrode suitable for use at jejunal biopsy. With this type of pH electrode, the pH of the mucosal surface of the jejunum in UK and in Indian subjects, without evidence of upper gastrointestinal disease, was about pH 6.0. This was almost identical to previous values measured using a separate reference electrode. Both the polymer electrode and a suitable data logger can be conveniently produced in the laboratory and compare favourably with commercially available systems, provided the range of pH likely to be encountered is within the operating range of the incorporated ligand.


Related Compounds

  • tri-n-dodecylamine
  • Tridodecylamine hy...

Related Articles:

Endothelin-1 regulates H⁺-ATPase-dependent transepithelial H⁺ secretion in zebrafish.

2014-05-01

[Endocrinology 155(5) , 1728-37, (2014)]

Functional characteristics of L1156F-CFTR associated with alcoholic chronic pancreatitis in Japanese.

2015-08-15

[Am. J. Physiol. Gastrointest. Liver Physiol. 309 , G260-9, (2015)]

Ion-selective sensors for assessment of the fetus.

1988-04-01

[J. Biomed. Eng. 10(2) , 165-70, (1988)]

Plastic pH electrodes for the measurement of gastrointestinal pH.

1985-02-01

[Gut 26(2) , 203-7, (1985)]

More Articles...