Results 1 to 10 of about 9,492 (194)

The availability of certain indicators in the determination of gastric acidity

open access: yesExperimental Biology and Medicine, 1915
A comparative study was made of certain indicators which have been used in the titration of gastric juice for free and total acidity and for the colorimetric determination of the H ion concentration of the same. The findings apply particularly to titrations where small amounts of gastric juice are available and many determinations must be carried out ...
Olaf Bergeim   +2 more
openaire   +2 more sources

Polyunsaturated fatty acid biosynthesis pathway determines ferroptosis sensitivity in gastric cancer [PDF]

open access: yesProceedings of the National Academy of Sciences, 2020
Significance Phosphatidylethanolamine (PE)-linked arachidonic acid (AA) and adrenic acid (AdA) are well-known substrates for lipid peroxidation, which are indispensable for ferroptosis, an iron-dependent regulated necrosis. However, how cells differentially regulate the intracellular pools of AA and AdA is not fully understood.
Kyoung Jin Oh   +25 more
openaire   +4 more sources

AN APPARATUS AND SIMPLIFIED METHOD OF DETERMINING GASTRIC AND OTHER ACIDITIES QUANTITATIVELY [PDF]

open access: yesJournal of the American Medical Association, 1909
The usual method of determining the amount of the various acids in stomach contents after a test trial necessitates numerous and more or less troublesome apparatus, viz., burette-holder and stand, burette with attachments, one or more glass beakers and a second burette or pipette in which to measure the stomach contents.
openaire   +2 more sources

Determination of gastric acidity and pH.

open access: yesExperimental Biology and Medicine, 1924
The free HC1 of the gastric contents may be easily titrated using brom phenol blue as an indicator. The “total acidity” has no chemical meaning. The pH may be determined by means of the Duboscq colorimeter, using quinaldine redas an indicator. The centrifuged gastric contents are measured and an equal measure of distilled water taken as a standard. The
openaire   +2 more sources

Determination of Gastric Acidity without Intubation by Use of Cation Exchange Indicator Compounds.

open access: yesExperimental Biology and Medicine, 1950
SummaryThe preparation of a cation exchange indicator compound called quininium resin indicator compound has been described. The rationale and method of its use have been stated.In vitro tests have demonstrated that the quininium cation present in this compound will be displaced by the hydrogen ions of dilute hydrochloric acid solutions and of the ...
Harry L. Segal   +2 more
openaire   +3 more sources

Fluorometric determination of gastric acidity with 2-fluorenecarboxaldehyde hydrazone [PDF]

open access: possibleArchives of Pharmacal Research, 1994
Fluorenecarboxaldehyde hydrazone (FCH) was synthesized as a new fluorescent reagent for the determination of acidity. FCH had no fluorescence in itself, however, it strongly fluoresced under acidic conditions at excitation maximum of 392 nm and emission maximum of 447 nm, respectively.
Jung-Kap Choi   +2 more
openaire   +1 more source

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