نتایج جستجو برای: phase solubility analysis

تعداد نتایج: 3319217  

2011
Urszula Domańska Aleksandra Pelczarska Aneta Pobudkowska

Guest-host complex formation of three drug derivatives of anthranilic acid, mefenamic acid, niflumic acid, and flufenamic acid with 2-hydroxypropyl-β-cyclodextrin (2HP-β-CD) in aqueous solutions was investigated using "Phase solubility study" with UV-vis spectrophotometry. Solubility of sparingly soluble drugs has been improved by addition of 2HP-β-CD at two temperatures 298.15 K and 310.15 K a...

Journal: :medical journal of islamic republic of iran 0
f sari aslani from the department of pathology, shiraz university of medical sciences, shiraz, i.r. iran. b salimi

to investigate the patterns of dna ploidy and proliferating activity in breast cancer and relate them to other prognostic factors, paraffin blocks of 53 cases of breast carcinoma were studied. cancer cells obtained by mechanical tissue disaggregation were examined for dna content, ploidy and s-phase fraction. dna assay was done using a cas interactive image analyzing system. all of the cases sh...

Journal: :Physical chemistry chemical physics : PCCP 2013
Yujing Chen Yukihiro Ozaki Mirosław A Czarnecki

The molecular structure and hydrogen bonding of ethylene glycol (EG) and EG-water mixtures in the liquid phase were studied by using near-infrared (NIR) spectroscopy. The spectra were evaluated using a two-dimensional (2D) correlation approach, moving-window 2D correlation analysis and chemometric methods. The minor changes for the CH stretching bands indicate that the structures of pure liquid...

2000
Toshihiro Asai David S. Dandy

Thermodynamic analysis of III-V semiconductor alloys grown by metalorganic vapor phase epitaxy Toshihiro Asai and David S. Dandy Dept. of Chemical Engineering, Colorado State University, Fort Collins, Colorado 80523-1370 A thermodynamic analysis has been applied to systematically study III-V semiconductor alloy deposition, including nitrides grown by metalorganic vapor phase epitaxy. The predic...

Journal: :Chemical & pharmaceutical bulletin 2013
Noriko Ogawa Mayumi Kaga Tomohiro Endo Hiromasa Nagase Takayuki Furuishi Hiromitsu Yamamoto Yoshiaki Kawashima Haruhisa Ueda

Quetiapine, an antipsychotic drug used for schizophrenia treatment, is poorly water soluble, and therefore, administration of the more water-soluble quetiapine fumarate is preferred. Absorption of quetiapine through biological membranes may be improved by enhancing the solubility of the quetiapine base, the non-ionic form. In this study, the currently used salt form was converted into the free ...

2006
Clays

The equil ibrium ratio of 3.93 for pSi(OH4~ p K +] was significantly different from the ratio of 3.40 predicted by the equation for the dissolution o f muscovite of this particular composit ion in the presence of gibbsite. A new dissolution equation was derived in which the muscovite composit ion was adjusted to satisfy the solute activity data, the presumption being that muscovite of a new com...

Journal: :Journal of Pharmaceutical Negative Results 2022

The purpose of this research is to design and formulate the Self-micro emulsifying drug delivery system (SMEDDS) poorly water-soluble Sertraline Hydrochloride (SRT). SRT commonly used selective serotonin reuptake inhibitor for management a number depressive disorders. Its applicability limited because extensive metabolism poor oral bioavailability 44 %. Solubility in different vehicles determin...

In this study, biodegradable kefiran-chitosan-nanocellulose blend films were developed and their physical, mechanical, barrier, thermal and structural properties determined. Results showed that adding nanocellulose had not any significant effect on the thickness, moisture content and water solubility. Also, water vapor permeability, tensile strength and lightness increased and the elongation at...

Journal: :Journal of the Medical Association of Thailand = Chotmaihet thangphaet 2010
Jarunee Kaulpiboon Prakarn Rudeekulthamrong

OBJECTIVE To compare the effect of different reaction temperatures on the cyclization and coupling reactions of the Toruzyme CGTase influencing the yield of cyclodextrins (CDs) and to study the solubility of paracetamol with CDs. MATERIAL AND METHOD Type and amount of CDs were analyzed by HPAEC-PAD. The stability constants for the inclusion complex formed between CDs and paracetamol were dete...

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