Higuchi connors phase solubility techniques. All the phase solubility diagrams displayed a typical AL type ...

The solubility diagram is useful for explaining inclusion c

In the phase-solubility diagram, the slope was lower than the unit, and the inclusion ratio of BA–β-CD was 1:1. The apparent stability constant (K 1:1) obtained from the Higuchi–Connors formula was 1.3094 × 10 3 mol −1, which showed the existence of favourable interactions. A larger K 1:1 value corresponded to a higher BA solubility ...Phase solubility behavior was studied according to the method proposed by Higuchi and Connors ... Phase solubility techniques. Adv. Anal Chem Instrum 1965; 4: 117 ...The 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 the drug solubility ...In a famous publication by Higuchi and Connors, complexes were classified based on the phase solubility profiles derived from the molecular interactions between the host and the guest...T. Higuchi, K. A. Connors, “Phase Solubility Techniques,” Advanced Analytical Chemistry of Instrumentation, Vol. 4, 1965, pp. 117-212. has been cited by the following …Solubility diagrams exhibit AL type according to the Higuchi and Connors classification [23], showing a linear increase ... Phase-solubility techniques. Adv Anal ...The phase solubility diagram for Nag in SBE-β-CD system is shown in Fig. 1. The apparent solubility of Nag increased linearly as a function of SBE-β-CD concentration over the studied concentration range, which could be classified as A L type according to Higuchi & Connors. The slope value was less than one, indicating that the formation of a ...Stoichiometry and constant formation of the inclusion complex 1H 4 MGF:1βCD by Higuchi–Connors method. The method of Higuchi and Connors proposes that to determine the inclusion constant of a formed complex 1H 4 MGF:1βCD, the phase-solubility diagram, ([H 4 MGF] = f([βCD])) of saturated solutions in mangiferin must show a linear trend and then equation relates the slope (α) and intercept ...All solubility measurements were performed six times. 2.2.2. Phase solubility study. Phase solubility study was performed according to the method described by Higuchi and Connors [17]. An excess amount of aceclofenac was placed in a 25 ml glass flask containing different concentrations of polymers in 20 ml distilled water.The effect of L-arginine was investigated on complexation efficiency of β-cyclodextrin towards Epalrestat in an aqueous media through phase solubility according to Higuchi and Connors. Phase ...The phase purity of the cocrystal samples prepared by rapid solvent evaporation and simple evaporation techniques was examined by PXRD based on the presence or absence of the characteristic peaks of the corresponding individual components ... Higuchi T, Connors KA. Phase-solubility techniques. Advan Anal Chem Instr. …Citation University of Kansas. Kenneth Spencer Research Library Personal papers of Takeru Higuchi (PP 359) Articles arranged alphabetically by title: Higuchi A-Z; Higuchi et. al. A-Z Higuchi and Connors, "Phase-Solubility Techniques,", 1964 Dates Creation: 1964 Collapse All Get at Spencer Box: 11, Folder: 35 (Mixed Materials) Repository DetailsT. Higuchi and K. A. Connors. Phase solubility techniques. Adv. Anal. Chem. Instrum. 4:117–212 (1965). ... In S. Yalkowsky (ed.), Techniques of Solubilization of Drugs, Marcel Dekker, New York, 1981, pp. 135–149. Google Scholar T. Higuchi and H. Kristiansen. Binding specificity between small organic solutes in aqueous solution ...Phase Solubility Studies. Phase solubility studies were carried out at room temperature (21 ± 1°C) following the method of Higuchi and Connors . Excess amounts of OME were weighed in glass flasks to which 10 ml of boric/borate buffer pH = 10 were added. These flasks contained increasing amounts of βCD (0–1.5%, w/v) or MβCD (0–5%, w/v).According to Higuchi and Connors’ theory, [17] the phase-solubility relationships between PD and β- and γ-CDs are classified as typical A L-type, ... according to the method reported by Higuchi and Connors (1965). ... Phase solubility techniques. Adv. Anal. Chem. Instrum., 4 (1965), pp. 117-212. View in Scopus Google ScholarIn a famous publication by Higuchi and Connors, complexes were classified based on the phase solubility profiles derived from the molecular interactions between the host and the guest...Higuchi T, Connors K (1965) Phase solubility techniques. In: Reilly CN (ed) Advances in analytical chemistry instrumentation. Interscience, New York, NY, pp 117–212. Google Scholar Jozefaciuk G, Muranyi A, Fenyvesi E (2001) Effect of cyclodextrins on surface and pore properties of soil clay minerals. Environ. Sci.concentration of CD used (Higuchi & Connors, 1965). The Preparation of Complexes. The ... Phase-solubility techniques. Advances in Analytical Chemistry and.According to the classification of the phase solubility diagram of Higuchi and Connors (Eq. 1), the HO-AAVPA solubility profiles correspond to the type A L phase diagrams, which support the ...Solubility method (phase solubility analysis) Solubility studies were carried out according to the method reported by Higuchi and Connors (1965) . Excess amounts of DAN were added to aqueous solutions (pH 6.2 ± 0.1) containing increasing concentrations of BCD (2.0 × 10 −3 to 14.0 × 10 −2 M) and the samples were shaken on …Phase solubility studies. Solubility measurements were performed in triplicate using the method reported by Higuchi and Connors (Higuchi et al., 1965). An excess amount of ALLO was added to the aqueous solutions of each carrier containing increasing concentrations of the individual carrier (i.e., 0, 1, 5, and 10 % w/v).Jun 15, 2019 · Solubility phase diagrams were created to evaluate the molar ratios of GAZ/βCD and GAZ/γCD inclusion complexes and their stability in aqueous solution (Fig. 2).The solubility of GAZ increased linearly with the added concentrations of βCD and γCD and produced an A L solubility phase diagram according to the classification by Higuchi, Connors et al. [12] A-type diagrams are formed when the ... To determine binding constants by Higuchi and Connors method, the acids solubility was determined by CZE after their agitation in the solutions of HP-γ-CD (with 0.6 molar substitution) at 25 °C for 3 days. The dependences of acids solubility on HP-γ-CD concentration deviated from straight line in the range of high concentration (A N mode ...(3) (Higuchi and Connors, 1965). As mentioned pre- viously poorly soluble ... Phase-solubility techniques. Adv. Anal. Chem. Instrum. 4, 117–212. Johnson ...2.3. Solubility Measurements. Phase-solubility studies of benzoyl metronidazole in aqueous solutions of β-CD were carried out according to the Higuchi-Connors procedure . Various amounts of β-CD were generally dissolved in distilled water, and excess amounts of benzoyl metronidazole were loaded in glass vials. The vials were …T. Higuchi, A. Connors Published 1965 Chemistry No Paper Link Available Save to Library Create Alert Cite 2,644 Citations Citation Type More Filters Environmentally friendly stability-indicating HPLC method for the determination of isotretinoin in commercial products and solubility samplesPhase solubility techniques. T K Higuchi, A Connors. 31 Dec 1964 - Vol. 4, pp 212-217. About: The article was published on 1965-01-01 and is currently open access. It has received 2363 citation (s) till now. The article focuses on the topic (s): Phase (matter) & Solubility. Phase solubility analysis The solubility measurements were performed according to the The phase solubility diagram of SMX and HP-␤-CD, obtained by method of Higuchi and Connors [22] in aqueous solutions contain- plotting the changes in guest solubility as a function of HP-␤-CD ing different concentrations of HP-␤-CD, ranging from 14.3 mM ...... Higuchi-Connors phase solubility method. この論文は、ヒグチコンノル相溶解法 ... techniques including Fourier Transform Infrared Spectroscopy (FTIR) and ...Fig. 2 sums up the results of the phase-solubility studies performed and analyzed using the approach described by Brewster and Loftsson (2007) and Higuchi and Connors (1965). For this study, a range of CD concentrations were selected which cover the maximum solubility of CDs in water at room temperature: 0–160 mM for 2-O-MBCD and 0–320 mM ...Higuchi, T. and Connors, K. (1965) Phase solubility techniques, in Reilly, C. (ed.), Advances in Analytical Chemistry and Instrumentation, Wiley Interscience, New York, pp. 117–212. Google Scholar The phase solubility study was performed in water as per the reported method by Higuchi and Connors . An excess amount of resveratrol was added to a solution containing an increasing concentration of nanosponges. ... Higuchi, T., Connors, K.A.: Phase solubility techniques. In: Advances Analytical Chemistry and Instrumentation, …According to the phase-solubility diagram classification system that was introduced by Higuchi and Connors , linear A L-type diagrams show that the total drug solubility increases as a function of …According to the Higuchi and Connors classification [6], the phase solubility diagram for the repaglinide – HP- β-CD inclusion complex is A type, which indicates the formation of a soluble complex.Phase Solubility Studies. The solubilization ability of CDs can be quantitatively evaluated by the phase solubility method developed by Higuchi and Connors ().The phase solubility diagram at 25 °C was obtained by plotting the apparent equilibrium concentrations of the drug against βCD concentrations and is reported in Fig. …The purpose of the present work is to improve the antimalarial activity of arteether through enhancing its solubility subsequently bioavailability by incorporating the drug into the cyclodextrins cavity. ... A 1:1 stoichiometry was proposed by the phase solubility studies both in presence and absence of PVP. ... T. Higuchi, K. A. Connors ...Guest–host interaction of astemizole (Astm) with cyclodextrins (CDs) has been investigated using phase solubility diagrams (PSD), differential scanning calorimetry (DSC), X-ray powder diffractometry (XRPD), proton nuclear magnetic resonance (1H-NMR) and molecular mechanical modeling (MM+). Estimates of the complex formation …PHASE-SOLUBILITY TECHNIQUES HIGUCHI TK,CONNORS A. Keyword. 出版时间:. 1965/01/01. 被引量:. 2861. 收藏 引用 批量引用 报错 分享. 全部来源 求助全文. ResearchGate scienceopen.com sid.ir. The phase solubility results indicated the formation of a IDE/SBE-β-CD inclusion complex with 1:1 molar ratio (A L type diagram), whose apparent stability constants at T = 300, 310, and 320 K have been estimated according to the Higuchi–Connors method. The formation of the inclusion complex has been confirmed on a freeze-dried …3.8. Solubility Studies. The phase-solubility profiles of the three polymorphic forms of benzocaine were determined according to the method of Higuchi and Connors , and were performed by using a Thermo Scientific™ MaxQ™ 4450 Benchtop Orbital Shaker (Thermo Scientific, Waltham, MA, USA). To 25.0 mL flasks, containing 10.0 mL methanol …May 11, 2018 · Types of phase-solubility diagrams according to Higuchi and Connors showing how the total drug solubility changes with increasing CD concentration. A-type diagrams are formed when the drug/CD complex is soluble in the aqueous complexation media and they are usually associated with the water-soluble CD derivatives. According to the classification method of Higuchi and Connors (Chen et al., Citation 2007; Higuchi & Connors, Citation 1965), ... Phase-solubility techniques. Adv Chem Instrum 4:117–212 [Google Scholar] Joo JI, Kim DH, Choi JW, Yun JW. (2010). Proteomic analysis for antiobesity potential of capsaicin on white adipose tissue in rats fed with a high fat diet.The phase solubility studies were performed according to the method described by Higuchi and. Connors [24]. Different concentrations of β-CD and HPβ-CD were ...The aqueous solubility of 1 linearly increased as a function of HP-β -CD concentration and showed features of an A -CD concentration and showed features of an AL type diagram. Thermodynamic parameters were obtained by using the temperature dependence of the stability constant at temperatures of between 25 and 37 type diagram.Higuchi T, Connors KA. Adv anal chem instrum. Phase-solubility Techniques. 1965;. 4:117-212. 10. Zingone G, Rubessa F. Preformulation study of the inclusion ...Phase solubility of GO/β-CD complex. Phase solubility studies were carried out according to the method described by Higuchi and Connors (1965). Excess amounts of GO were added to 10 ml of water solution of β-CD at different concentrations ranging from 0 to 9.5 mM.This 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 ...T. 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: Binary and Ternary Complexes of Arteether β-CD - Characterization, Molecular Modeling and in Vivo StudiesPhase solubility study. Phase solubility studies were carried out according to the method reported by Higuchi and Connors . Excess amounts of MMF were added to 0.1 N HCl solutions (pH-1.2) containing para sulphonatocalix[4]resorcinarene in different molar concentrations and these flasks were then sonicated for 1 h and shaken at a rate …Abstract. The interaction between ibuprofen and maltodextrins with different dextrose equivalent was studied in solution and solid state in order to investigate the effect on the solubility of ibuprofen and to determine their usefulness in terms of chiral recognition. Apparent binding constants were calculated using nuclear magnetic resonance ...Dec 15, 2022 · The solubility of CUR increased linearly with increasing concentrations of β-CD, represented as an A L type phase solubility curve (Higuchi & Connors, 1965; Jiang et al., 2019). The results of ANONA of the phase solubility model were provided in Table 1. F value (409.54) was extremely significant (p value < 0.001) suggesting that the model was ... 13 Şub 2019 ... The phase solubility studies were carried out according to Higuchi and Connors. ... Phase-solubility techniques. Adv. Anal. Chem. Instrum. 4 ...There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.Phase solubility studies for Cur/Na 2 GA systems were carried out in aqueous systems at different temperatures to calculate the ... (A L-type relationships), suggesting the formation of 1:1 ‘molecular relations’ of associated complexes/micelles (Higuchi & Connors, Citation 1965). Thus, ... Connors KA. (1965). Phase-solubility techniques. In: Reilley CN, ed. …Shake flask method was employed for the aqueous solubility measurements, performed in triplicates by Higuchi and Connors method . An excess amount of cocrystals were added to the flask containing distilled water. The solutions were vortexed for 2 min and placed on a rotary shaker at 100 rpm and 27±0.5° for 24 h. ... Higuchi TK, Connors A. …Higuchi, KA Connors. Phase-solubility techniques. Adv Anal Chem Instrum 1965; 4: 117–212. Etodolak’ın Ko-kristalizasyonu: Ko-kristalizasyon Tahmini, Ko-kristal Sentezi, Katı Faz Yapı Aydınlatma Çalışmaları ve In Vitro İlaç Salımı ... Higuchi, KA Connors. Phase-solubility techniques. Adv Anal Chem Instrum 1965; 4: 117–212. Show ...The solubility diagram is useful for explaining inclusion complexation of poorly soluble compounds with cyclodextrins as a host in water because it gives not only the solubilizing ability of host but also the stability constant of the complexes by analyzing the solubility curves (Higuchi & Connors, 1965).Fig. 2 shows the phase solubility …The purpose of the present work is to improve the antimalarial activity of arteether through enhancing its solubility subsequently bioavailability by incorporating the drug into the cyclodextrins cavity. ... A 1:1 stoichiometry was proposed by the phase solubility studies both in presence and absence of PVP. ... T. Higuchi, K. A. Connors ...The phase solubility results indicated the formation of a IDE/SBE-β-CD inclusion complex with 1:1 molar ratio (A L type diagram), whose apparent stability constants at T = 300, 310, and 320 K have been estimated according to the Higuchi–Connors method. The formation of the inclusion complex has been confirmed on a freeze-dried …The 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 ...T. Higuchi and K. A. Connors. Phase solubility techniques. Adv. Anal. Chem. Instrum. 4:117-212 (1965). ... In S. Yalkowsky (ed.), Techniques of Solubilization of Drugs, Marcel Dekker, New York, 1981, pp. 135-149. Google Scholar T. Higuchi and H. Kristiansen. Binding specificity between small organic solutes in aqueous solution ...Solubility studies. The phase-solubility diagrams were made according to the Higuchi and Connors method (Higuchi and Connors, 1969). For this purpose, aqueous solutions of HPβCD with concentrations of 0–2.6 mM with a known concentration of Los at 30 mM were prepared. These were placed in a thermostatic bath at 298 K by 48 h.Phase solubility analysis. The phase solubility diagram for DEN and HPβCD obtained based on the methods of Higuchi and Connors 1965 (Fig. 3) can be categorised as AL-type. The solubility of DEN increases linearly with increase HPβCD concentration. The stability constant K was obtain from the linear portion in the phase …Phase solubility studies. The phase solubility studies were performed using Higuchi and Connors method (Higuchi & Connors, 1965). Briefly, different concentrations of β-CD (0, 2, 6, 8, 10 and 20 mM) were prepared in deionised water in glass capped vials. To each vial 1 mg CUR was added.The phase solubility study was performed according to the method of Higuchi and Connors ... solubility of FFN. Complexes were analyzed by UV-VIS spectroscopy ...Phase solubility analysis The solubility measurements were performed according to the The phase solubility diagram of SMX and HP-␤-CD, obtained by method of Higuchi and Connors [22] in aqueous solutions contain- plotting the changes in guest solubility as a function of HP-␤-CD ing different concentrations of HP-␤-CD, ranging from 14.3 mM ...Phase solubility studies. Phase solubility studies of stigmasterol with different concentrations of α-CD were determined by the method proposed by Higuchi and Connors at room temperature. The excess amount of stigmasterol was dissolved in 60 ml of ethanol and then added to 10 ml of double-distilled water containing various concentrations of α ...Abstract The 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.Phase solubility analysis The solubility measurements were performed according to the The phase solubility diagram of SMX and HP-␤-CD, obtained by method of Higuchi and Connors [22] in aqueous solutions contain- plotting the changes in guest solubility as a function of HP-␤-CD ing different concentrations of HP-␤-CD, ranging from 14.3 mM ...Phase solubility techniques. T K Higuchi, A Connors. 31 Dec 1964 - Vol. 4, pp 212-217. About: The article was published on 1965-01-01 and is currently open access. It has received 2363 citation (s) till now. The article focuses on the topic (s): Phase (matter) & Solubility.31 Ağu 2017 ... The phase solubility studies were carried out to study the effect of cyclodextrins according to the method described by Higuchi and Connors. The ...The purpose of the present work is to improve the antimalarial activity of arteether through enhancing its solubility subsequently bioavailability by incorporating the drug into the cyclodextrins cavity. ... A 1:1 stoichiometry was proposed by the phase solubility studies both in presence and absence of PVP. ... T. Higuchi, K. A. Connors ...Solubility studies. The phase-solubility diagram corresponding to DPS:βCD system is illustrated in Fig. 5. It was performed according to the method reported by of Higuchi and Connors in order to determine the stability constant of the suggested complex and evaluate its stoichiometry. Measurements were made at 291 nm, which …At 298.2–318.2 K and 101.1 kPa, the solubility of FBX in several mono solvents was measured using an experimental approach proposed by “Higuchi and Connors” . The extra FBX was mixed with the known amount of each mono solvent. The obtained suspensions were vortexed for 10 min.The phase solubility diagram (Fig. 2) showed that the solubility of cholesterol increased linearly with increasing β-CD concentration from 0 to 18 mmol/L (R 2 > 0.99). The phase solubility diagram was defined as the A L -type phase based on the early research of Higuchi and Connors (1965) , revealing the formation of inclusion complex …All the phase solubility diagrams displayed a typical AL type diagram (i.e. linear increases in luteolin solubility with increasing CD concentrations) within the concentration range studied, indicating a 1:1 stoichiometry of the complexes between luteolin and the five different CDs studied (Higuchi & Connors, 1965). This means that each ...Phase solubility curve of Sbio. Previously, the Higuchi-Connors phase-solubility method was used for assessing the compound stability constant (Higuchi & Connors, 1965). Briefly, extra Sbio was mixed with deionized water (Master-S, Hitech-sciencetool, Shanghai, PR China) containing 0–10 mM γ-CD. Then the suspensions …Phase solubility techniques. T. Higuchi, A. Connors. Published 1965. Chemistry. No Paper Link Available. Save to Library. Create Alert. Cite. 2,644 Citations. Citation Type. More Filters. Environmentally friendly stability-indicating HPLC method for the …Phase Solubility Study Figure No. 3. Phase-solubility profiles and classification of complexes. Higuchi and Connors [22] have classified complexes based their effect on substrate solubility as indicated by phase-solubility profiles (Figure 3). A-type phase-solubility profiles are obtained when the solubility of the substrate (i.e., drug ...Detection of inclusion complexation was done in solution by means of phase solubility analysis, mass spectrometry, and 1 H nuclear magnetic resonance (1 H-NMR) spectroscopic studies, and in solid state using differential scanning calorimetry (DSC), powder x-ray diffractometry (X-RD), scanning electron microscopy (SEM), and in vitro dissolution ...Solubility method (phase solubility analysis) Solubility studies were carried out according to the method reported by Higuchi and Connors (1965) . Excess amounts of DAN were added to aqueous solutions (pH 6.2 ± 0.1) containing increasing concentrations of BCD (2.0 × 10 −3 to 14.0 × 10 −2 M) and the samples were shaken on a rotary shaker .... T. Higuchi, K. A. Connors, “Phase Solubility TechniquAll solubility measurements were performed si Phase Solubility Studies. Phase solubility studies were carried out at room temperature (21 ± 1°C) following the method of Higuchi and Connors . Excess amounts of OME were weighed in glass flasks to which 10 ml of boric/borate buffer pH = 10 were added. These flasks contained increasing amounts of βCD (0–1.5%, w/v) or MβCD (0–5%, w/v). T. Higuchi, K. A. Connors, “Phase Solubility Techniques,” Advanced A One of the most useful and widely applied analytical approaches in this context is the Phase–solubility method described by Higuchi and Connors [42].... Journal Article • DOI • Cyclodextrins in drug delivery: an updated review. Phase solubility. Compatibility of host and guest re...

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