A simple current injector: Its application to coulomb titration of chloride

Chen, B.; Konishi, T.

doi:10.1007/bf02457816

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Apparatus and Methodology1

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1979

1987

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Cited by 3 publications

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“…Constant current over a range of 3 decades is given by a device made from readily available materials (175). A simple current injector for electrophysiological experiments has been described (53). Control-engineering principles have been used to achieve titration times of 10 s for a few nanoequivalents of acid in an on-line system (312).…”

Section: Apparatus and Methodologymentioning

confidence: 99%

Amperometric, bipotentiometric, and coulometric titration

Stock¹

1980

Anal. Chem.

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Section: Apparatus and Methodologymentioning

confidence: 99%

Amperometric, bipotentiometric, and coulometric titration

Stock¹

1980

Anal. Chem.

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Effects of exposure to noise on ion movement in guinea pig cochlea

1979

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Effect of Glycerol on Inner Ear Fluid Electrolytes and Osmolalities in Guinea Pigs

Muratsuka¹,

Konishi

1987

Ann Otol Rhinol Laryngol

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Endolymph of the scala media (SM) and perilymph of the scala vestibuli (SV) and scala tympani (ST) were collected from the basal turn of anesthetized guinea pigs before and after intravenous administration of glycerol (3 g/kg). Sound-evoked responses were recorded during the test periods. Blood, CSF, and perilymph of the ST were also collected continuously after the injection. The osmolalities and chloride concentrations of the collected samples were determined. In another experiment, the continuous changes of potassium and chloride concentrations in endolymph and perilymph of the ST before and after the injection were measured by ion-selective electrodes. The osmolalities in CSF and perilymph lagged behind the increase in serum osmolality. The osmolalities in endolymph and perilymph increased gradually after the injection, reached maximum values after 90 minutes, and then decreased. The changes in chloride and potassium concentrations in endolymph and perilymph had similar tendencies. But the increases in chloride concentrations in perilymph of the SV and ST were much less than that in endolymph. We propose that most of the osmolality increase in perilymph is due to glycerol or other osmotically active substances and that the osmolality increase in endolymph is due to water shift.

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A simple current injector: Its application to coulomb titration of chloride

Cited by 3 publications

References 6 publications

Amperometric, bipotentiometric, and coulometric titration

Amperometric, bipotentiometric, and coulometric titration

Effects of exposure to noise on ion movement in guinea pig cochlea

Effect of Glycerol on Inner Ear Fluid Electrolytes and Osmolalities in Guinea Pigs

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