Zobrazeno 1 - 10 of 17 pro vyhledávání: '"Henry M. Koehler"'
1
Zahnärztetag: German dentists and researchers meet in Hamburg
Autor: Henry M. Koehler
Publikováno v: The Journal of the American Dental Association. 89:37-40
More than 40,000 persons visited Hamburg, Germany, for the meetings of the German dental association, the German dental research society, a dental assistants education conference, and a dental technicians congress. The accompanying International Dent
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::179bf5b909c2f87bb56563f2e8ca0d3a
https://doi.org/10.14219/jada.archive.1974.0359
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2
Principles in the Spectrophotometric Determination of Propoxycaine in the Presence of Procaine**Division of Chemistry, American Dental Association, Chicago, Ill
Autor: Edward G. Feldmann, Walter Mahler, Henry M. Koehler
Publikováno v: Journal of the American Pharmaceutical Association (Scientific ed.). 47:676-680
A Spectrophotometric method for the determination of propoxycaine in the presence of procaine has been developed. Aqueous mixtures of these two local anesthetics in the form of their hydrochloride salts, which are commercially marketed, may be assaye
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::85963bee31cbdafaa4145d70d3be93bd
https://doi.org/10.1002/jps.3030470916
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8
Gas-Liquid Chromatography of Local Anesthetics and Related Compounds
Autor: John J. Hefferren, Henry M. Koehler
Publikováno v: Journal of Pharmaceutical Sciences. 53:745-747
Conditions for the gas chromatography of local anesthetics and related materials were investigated. Flexol on Chromosorb W and SE 30 on glass bead columns were preferred for the low and high melting compounds, respectively.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6693c6fa0885423f76a2282bb43a0a85
https://doi.org/10.1002/jps.2600530709
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9
Perchloric Acid Titrations with a Commercially Available Electrode
Autor: John J. Hefferren, Henry M. Koehler
Publikováno v: Journal of Pharmaceutical Sciences. 50:583-585
The combination electrode1 is a suitable electrode for potentiometric titrations in water miscible and immiscible, nonaqueous solvents with perchloric acid in glacial acetic acid or dioxane as a titrant. The construction of the electrode is such that
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9d270706e2b38467ea3af1354867c001
https://doi.org/10.1002/jps.2600500711
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10
Qualitative and quantitative tests for mepivacaine hydrochloride
Autor: John J. Hefferren, Henry M. Koehler, M.E. Auerbach, E.L. Pratt
Publikováno v: Journal of pharmaceutical sciences. 51
A series of qualitative tests and quantitative methods are presented for mepivacaine hydrochloride. These data result from a cooperative laboratory study by research personnel of the drug firm and the American Dental Association. The methods chosen a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c69a1e4527318e3deb9a5400426b6b7c
https://pubmed.ncbi.nlm.nih.gov/13863212
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