Ràfols et al., 2017 - Google Patents
Lipophilicity of amphoteric and zwitterionic compounds: A comparative study of determination methodsRàfols et al., 2017
View PDF- Document ID
- 7230410194133894041
- Author
- Ràfols C
- Subirats X
- Rubio J
- Rosés M
- Bosch E
- Publication year
- Publication venue
- Talanta
External Links
Snippet
Common drugs intended for action in plasma (antibacterials, antiallergics, diuretics...) often display both acidic and basic behavior, and some of these amphoteric compounds can appear as zwitterions. In such cases, accurate profiling of lipophilicity vs. pH, which plays a …
- 150000001875 compounds 0 title abstract description 36
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/88—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86
- G01N2030/8809—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample
- G01N2030/8813—Integrated analysis systems specially adapted therefor, not covered by a single one of the groups G01N30/04 - G01N30/86 analysis specially adapted for the sample biological materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/86—Signal analysis
- G01N30/8665—Signal analysis for calibrating the measuring apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
- G01N27/447—Systems using electrophoresis
- G01N27/44704—Details; Accessories
- G01N27/44747—Composition of gel or of carrier mixture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by the preceding groups
- G01N33/48—Investigating or analysing materials by specific methods not covered by the preceding groups biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/62—Detectors specially adapted therefor
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Ràfols et al. | Lipophilicity of amphoteric and zwitterionic compounds: A comparative study of determination methods | |
Shoghi et al. | Solubility–pH profiles of some acidic, basic and amphoteric drugs | |
Beltran et al. | Spectrophotometric, potentiometric and chromatographic pKa values of polyphenolic acids in water and acetonitrile–water media | |
Székely et al. | Design of experiments as a tool for LC–MS/MS method development for the trace analysis of the potentially genotoxic 4-dimethylaminopyridine impurity in glucocorticoids | |
Caliaro et al. | Determination of pKa values of basic new drug substances by CE | |
Lu et al. | Lipophilicity screening of novel drug-like compounds and comparison to clog P | |
Şanli et al. | Determination of pKa values of some sulfonamides by LC and LC-PDA methods in acetonitrile-water binary mixtures | |
Shamsipur et al. | Preparation of a cimetidine ion-selective electrode and its application to pharmaceutical analysis | |
Wang et al. | Ion-pairing HPLC methods to determine EDTA and DTPA in small molecule and biological pharmaceutical formulations | |
Abou-Diwan et al. | Plasma and cerebral spinal fluid tranexamic acid quantitation in cardiopulmonary bypass patients | |
Souza et al. | Acetonitrile as adjuvant to tune polyethylene glycol+ K3PO4 aqueous two-phase systems and its effect on phenolic compounds partition | |
Grumetto et al. | Relationships between human intestinal absorption and polar interactions drug/phospholipids estimated by IAM–HPLC. | |
Samardžić et al. | Simultaneous potentiometric determination of cationic and ethoxylated nonionic surfactants in liquid cleaners and disinfectants | |
Cox | Acids, bases, and salts in mixed-aqueous solvents | |
Han et al. | Influence of variation in mobile phase pH and solute pKa with the change of organic modifier fraction on QSRRs of hydrophobicity and RP-HPLC retention of weakly acidic compounds | |
Heydari | Thermodynamic study of complex formation of β-cyclodextrin with ibuprofen by conductometric method and determination of ibuprofen in pharmaceutical drugs | |
Subirats et al. | Retention of ionisable compounds on high-performance liquid chromatography: XVI. Estimation of retention with acetonitrile/water mobile phases from aqueous buffer pH and analyte pKa | |
Gumustas et al. | Determination of pKa values of some antihypertensive drugs by liquid chromatography and simultaneous assay of lercanidipine and enalapril in their binary mixtures | |
Panić et al. | Design and analysis of interactions in ionic liquids based on procaine and pharmaceutically active anions | |
Chylewska et al. | Drug-like properties and complete physicochemical profile of pyrazine‑2‑amidoxime: A combined multi-experimental and computational studies | |
Pallicer et al. | The contribution of the hydrogen bond acidity on the lipophilicity of drugs estimated from chromatographic measurements | |
Matyjaszczyk et al. | Effects of structural modification of the daunosamine moiety of anthracycline antibiotics on pKa values determined by capillary zone electrophoresis | |
Albishri et al. | Determination of the aqueous pKa of very insoluble drugs by capillary electrophoresis: Internal standards for methanol-water extrapolation | |
Elqudaby et al. | Utilization of phosphotungestic acid in the conductometric determination of loperamide hydrochloride and trimebutine antidiarrhea drugs | |
Samardžić et al. | The novel anionic surfactant selective sensors based on newly synthesized quaternary ammonium salts as ionophores |