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Biasato I, Lanteri G, Guarda F, Capucchio MT, Marino F, Briguglio G, Macrì F. Unusual Combination of Multiple Vascular Anomalies in a German Shepherd Puppy with Megaoesophagus. Anat Histol Embryol 2017; 46:216-219. [DOI: 10.1111/ahe.12260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 11/26/2016] [Indexed: 11/29/2022]
Affiliation(s)
- I. Biasato
- Department of Veterinary Sciences; University of Turin; Largo Paolo Braccini 2 10095, Grugliasco (TO) Italy
| | - G. Lanteri
- Department of Veterinary Sciences; University of Messina; Polo Universitario dell'Annunziata 98168 Messina Italy
| | - F. Guarda
- Department of Veterinary Sciences; University of Turin; Largo Paolo Braccini 2 10095, Grugliasco (TO) Italy
| | - M. T. Capucchio
- Department of Veterinary Sciences; University of Turin; Largo Paolo Braccini 2 10095, Grugliasco (TO) Italy
| | - F. Marino
- Department of Veterinary Sciences; University of Messina; Polo Universitario dell'Annunziata 98168 Messina Italy
| | - G. Briguglio
- Department of Veterinary Sciences; University of Messina; Polo Universitario dell'Annunziata 98168 Messina Italy
| | - F. Macrì
- Department of Veterinary Sciences; University of Messina; Polo Universitario dell'Annunziata 98168 Messina Italy
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Tymes NW, Briguglio G, Corcoran C, Everett R, Feyns LV, Fisher E, Gray V, Hughes D, Lazar A, Marks A, Radin J, Thompson R. High Pressure Liquid Chromatographic Determination of Physostigmine Salicylate and Physostigmine Sulfate in Liquids and Ointments: Collaborative Study. J AOAC Int 1982. [DOI: 10.1093/jaoac/65.1.132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Results of 11 laboratories are presented for the collaborative study of a proposed method for the quantitative reverse phase high pressure liquid chromatographic (HPLC) determination of physostigmine salicylate and physostigmine sulfate in pharmaceutical formulations. The samples consisted of commercial solution, injection, and ointment preparations, each containing one of the physostigmine salts. The physostigmine salt is extracted from ointments with acetonitrile after the ointment is dissolved in hexane. Liquid preparations are diluted directly. Physostigmine is determined at 254 nm on a C18 column by comparison with a physostigmine standard. Flurazepam hydrochloride is the internal standard. The method has been adopted official first action for the solution dosage form.
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Affiliation(s)
- Norlin W Tymes
- Food and Drug Administration, 900 Madison Ave, Baltimore, MD 21201
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