Higuchi and connors

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August undefined, 2024

WebThe shake-flask method is based on the phase solubility technique that was developed 40 years ago and is still the most reliable and widely used method for solubility measurement … WebJan 11, 2024 · The shake-flask method proposed by Higuchi and Connors is widely used in the determination of a drug’s solubility. It determines the thermodynamic solubility of the drug after reaching equilibrium.

Determination of stability constant of β-cyclodextrin

WebThis was explained by the solubilization theory of Higuchi and Connors. The solubility analysis of the ternary drug/competitor/CyD systems may be particularly useful for … WebHiguchi et. al, "Phase-Solubility Technique in Studying the Formation of Complex Salts of Triamterene,", 1964. Higuchi and Connors, "Phase-Solubility Techniques,", 1964. Higuchi … highest scoring nba performances

Higuchi and Connors, "Spectrophotometric Detection of the End …

WebMay 11, 2024 · Cyclodextrins (CDs), a group of oligosaccharides formed by glucose units bound together in a ring, show a promising ability to form complexes with drug molecules … WebPhase-solubility studies Water solubility studies for both triterpenic acids were conducted by the Higuchi and Connors method [16] using a series of increasing concentrations of OGCD. In this purpose aqueous suspensions of oleanolic acid and ursolic acid, respectively, were prepared in the presence of OGCD in a concentration range of 1 to 300 ... WebT. Higuchi and K. A. Connors, “Phase-Solubility Techniques,” In: C. N. Reilly, Ed., Advances in Analytical Chemistry and Instrumentation, Wiley-Interscience, New York, Vol. 4, 1965, pp. … how heavy is 100kg in stone

UV-vis and FTIR-ATR spectroscopic techniques to study the ... - PubMed

Phase solubility studies of terpineol with β-cyclodextrins and ...

WebTypes of phase-solubility diagrams according to Higuchi and Connors [11] showing how the total drug solubility changes with increasing CD concentration. A-type diagrams are … Webevaluated by the methods described by Higuchi and Connors.20) Twenty mL of 0.007–0.252M CD aqueous solution in a glass beaker was placed in a 25 C water bath. Excess ALA was added to the CD solution and the mixture was homogenized at 2,000rpm with a T. K. ROBO MICS (Primix, Osaka, Japan). The suspension was ﬁltered highest scoring international soccer gameWebPersonal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. Higuchi and Connors, "Spectrophotometric Detection of the End Point in the Karl Fischer Titration of Water,", 1959, Box: 11, Folder: 110. Personal papers of Takeru Higuchi, PP 359. University of Kansas. Kenneth Spencer Research Library. highest scoring lacrosse game

"WebThe most common and widely used method to evaluate the ability of the inclusion complex is the phase solubility studies by Higuchi and Connors (1965). 23 The plot showed that … " - Higuchi and connors

Higuchi and connors

The Aqueous Solubility and Thermal Stability of -Lipoic Acid …

WebThe present study was aimed to formulate the solid dispersion incorporated microcapsule to improve the dissolution rate and half life of pioglitazone hydrochloride. The solvent evaporation method was used to formulate the solid dispersion resulted increased dissolution rate, bioavailability and stability. Finally increase the half life of the ... WebHiguchi and Gensch, "Acylation through a Sulfonium Ion Intermediate. Coupled Conversion of a Carboxylic Acid to an Acid Anhydride during Oxidation of a Thioether to a Sulfoxide,", …

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WebJan 1, 2011 · T. Higuchi, K.A. Connors. Phase solubility techniques. Adv Anal Chem Instrum, 4 (1965), pp. 117-212. Google Scholar [18] L. Greenspan. Humidity Fixed Points of Binary Saturated Aqueous Solutions. J Res Nat Bur Stand, 81A (1) (1977), pp. 89-96. CrossRef Google Scholar [19] WebThe Higuchi窶鼎onnors phase-solubility method8)is very often used to determine K 1:1 , as a part of a formulation study. This method is based on the effect of a complex forming lig- and, e.g.CD, on the solubility of the drug. The intrinsic solu- bility (S 0 ) and the slope of the phase-solubility diagram are then used to calculate K 1:1

http://www.sciepub.com/reference/10360 WebJan 15, 2024 · Natural CDs and their derivatives are used as enabling pharmaceutical excipients that enhance aqueous solubility of poorly soluble drugs, increase drug permeability through biological membranes and improve drug bioavailability.

WebT. Higuchi, K. A. Connors, “Phase Solubility Techniques,” Advanced Analytical Chemistry of Instrumentation, Vol. 4, 1965, pp. 117-212. has been cited by the following article: TITLE: … WebIt is a blood scihozonticide and active against all stages of Plasmodium falciparum. The drug is also used for the treatment of cerebral malaria as well as for the chloro- quine resistant cases [2-5]. Unfortunately, it is water- insoluble (17 µg/ml at room temperature) [6] and the formulation causes difficulties to the biopharmaceutical scientist.

WebMay 1, 1999 · There are many methods for determination of stability constants of CyD complexes, using techniques such as solubility (Higuchi and Connors, 1965), …

WebDec 18, 2024 · Phase solubility test was performed according to the method of Higuchi and Connors [ 24 ]. An excess amount of camphor was added to aqueous CD (HPβCD and HPγCD) solutions, and the suspensions were shaken at RT. After equilibrium was achieved at the end of 48 h, the suspensions were filtered with 0.45 μm membrane filter. how heavy elephantWebSolubility profiles by Higuchi and Connors theory. So is the drug intrinsic solubility in cyclodextrin absence 76 . Source publication Alternative Technologies to Improve … how heavy cream is madeWebT. Higuchi and K. A. Connors, “Phase-Solubility Techniques,” In: C. N. Reilly, Ed., Advances in Analytical Chemistry and Instrumentation, Wiley-Interscience, New York, Vol. 4, 1965, pp. 117-212. has been cited by the following article: TITLE: Ibuprofen-Maltodextrin Interaction: Study of Enantiomeric Recognition and Complex Characterization how heavy dumbbells should i useWebFeb 27, 2010 · According to Higuchi and Connors there can be five types of phase-solubility relationship (Fig. 1 ): A L -type where there is a linear relationship between substrate (drug) solubility and ligand (cyclodextrin) concentration and which is interpreted as formation of a complex with m :1 stoichiometry; A P -type, which represents positive deviation … highest scoring nba gWebThis was explained by the solubilization theory of Higuchi and Connors. The solubility analysis of the ternary drug/competitor/CyD systems may be particularly useful for determination of the stability constant of a drug whose physicochemical and spectroscopic analyses are difficult, because they can be calculated by monitoring the solubility ... highest scoring madden game ever how heavy is 100 kgWebIn vitro transdermal permeation behavior of isosorbide dinitrate in the absence and presence of 2-hydroxypropyl-β-cyclodextrin: solutions and suspensions. Interactions of a vasodilator, isosorbide dinitrate (ISDN), with the parent α-, β- and γ-cyclodextrins (α-, β- and γ-CDs) and 2-hydroxypropyl-α- and -β- and γ-CDs (HP-α- and -β ... how heavy how light class 5