Výsledky vyhledávání - "Rhys. Bryant"

Semiautomated, Simultaneous Assay of Thiamine, Riboflavin, Pyridoxine, and Niacinamide in Multivitamin Preparations

Autor: F.J. Burger, R.L. Henry, Rhys Bryant, F.B. Trenk

Publikováno v: Journal of Pharmaceutical Sciences. 60:1717-1720

A semiautomated analytical system was developed for the simultaneous determination of thiamine (B1), riboflavin (B2), pyridoxine (B6), and niacinamide in multivitamin preparations. The automated analytical methods are similar in principle to the USP

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a0c12f73f228f960ebfc6e073d313dc
https://doi.org/10.1002/jps.2600601130

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Assay of Cyclophosphamide

Autor: O.D. Boughton, R.D. Brown, C.M. Combs, F.J. Burger, Rhys Bryant

Publikováno v: Journal of Pharmaceutical Sciences. 61:97-100

A GLC procedure was developed for the assay of cyclophosphamide raw materials and cyclophosphamide in formulations. Results obtained by this technique are comparable to those obtained by IR spectroscopy. The GLC procedure offers increased accuracy, r

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::061e690039b1ddc99d90571d65441dce
https://doi.org/10.1002/jps.2600610118

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The Sesquiterpenoids

Autor: Rhys Bryant

Publisher Summary The sesquiterpenoids comprise the group of C15 compounds obtained from the vegetable essential oils, that is, the oils of the essence or distillate of plants. This chapter profiles sesquiterpenoid hydrocarbons, such as farnesenes, b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d826bc65f8db05394f1a50409b073fc7
https://doi.org/10.1016/b978-044453345-6.50562-9

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Quantitative determination of ethinyl estradiol by gas chromatography, and a comparison of gas chromatographic and U.S.P. procedures

Autor: Rhys Bryant, O.D. Boughton, D.L. Timma, W.J. Ludwig

Publikováno v: Journal of pharmaceutical sciences. 55(9)

Ethinyl estradiol was extracted from other tablet or granulation excipients by a modified U.S.P. procedure. It was then quantitatively determined by gas chromatography of its trimethylsilyl ether. Estrone was used as an internal standard. A compariso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::952956ec01292dffe255a1ebc56a5542
https://pubmed.ncbi.nlm.nih.gov/5918533

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Automated assay of single tablets of chloral betaine

Autor: Rhys Bryant, F.B. Trenk, F.J. Burger

Publikováno v: Journal of pharmaceutical sciences. 60(11)

An automated analytical system was used to determine the amount of chloral hydrate in a single tablet. The intensity of a blue complex between chloral hydrate and quinaldine ethiodide in alkaline solution was a measure of its concentration in the tab

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c2e10eab729a115a84045bac57a52a2
https://pubmed.ncbi.nlm.nih.gov/5133928

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Automated Assay of Single Tablets of Methdilazine and Methdilazine Hydrochloride

Autor: David S. Yoder, D.E. Mantle, F.J. Burger, D.L. Timma, Rhys Bryant, F.B. Trenk

Publikováno v: Journal of Pharmaceutical Sciences. 62:1355-1356

An automated analytical system was used to determine the amount of methdilazine base or methdilazine hydrochloride in a single tablet. Tablets were sampled at a rate of 20/hr., with observed coefficients of variation of 2.8 and 3.4% for methdilazine

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1fa75b0d6e4d522f23f5b52cdd4f481
https://doi.org/10.1002/jps.2600620829

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