V. David

发表

Estimation of the phase ratio in reversed-phase high-performance liquid chromatography.

S. Moldoveanu, V. David, 2015, Journal of chromatography. A.

Variation with Temperature of Phase Ratio in Reversed Phase HPLC for a Methanol/Water Mobile Phase

S. Moldoveanu, V. David, Andreia-Cristina Soare, 2021, Chromatographia.

Structure‐Retention Correlation in Liquid Chromatography for Pharmaceutical Applications

V. David, A. Medvedovici, 2007 .

Stationary Phases and Their Performance

S. Moldoveanu, V. David, 2013 .

THE INFLUENCE OF MOBILE-PHASE FLOW-RATE IN RP-LC ON THERMODYNAMIC PARAMETERS STUDIED FOR POLAR COMPOUNDS

V. David, A. Medvedovici, Toma Galaon, 2011 .

Deviation from van't Hoff dependence in RP-LC induced by tautomeric interconversion observed for four compounds.

V. David, Toma Galaon, 2011, Journal of separation science.

Unusual Retention Behavior of Some Cationic-Type Aldoximes Used as AChE Reactivators Under Ion-Pairing Liquid Chromatographic Mechanism

V. David, A. Medvedovici, V. Voicu, 2010 .

Hydrophobicity/hydrophilicity descriptors obtained from extrapolated chromatographic retention data as modeling tools for biological distribution: application to some oxime-type acetylcholinesterase reactivators.

C. Sârbu, V. David, A. Medvedovici, 2010, Journal of pharmaceutical and biomedical analysis.

Thermodynamic parameters of the reversed-phase liquid chromatography retention for some lipid-soluble vitamins

C. Bala, L. Rotariu, V. David, 2004 .

Selection of the retention mechanism for separation of amitriptyline and the main related impurities by liquid chromatography

V. David, A. Medvedovici, F. Albu, 2005 .

Partition model applied to the retention process of basic analytes in reversed-phase and ion-pairing liquid chromatography

V. David, A. Medvedovici, 2005 .

Solvents, Buffers, and Additives Used in the Mobile Phase

S. Moldoveanu, V. David, 2017 .

Effects of large volume injection of aliphatic alcohols as sample diluents on the retention of low hydrophobic solutes in reversed-phase liquid chromatography.

H. Aboul‐Enein, V. David, Toma Galaon, 2014, Journal of chromatography. A.

Retention Behavior of Some Compounds Containing Polar Functional Groups on Perfluorophenyl Silica-Based Stationary Phase

H. Aboul‐Enein, Elena Bacalum, V. David, 2014, Chromatographia.

PARABENS LIPOPHILICITY DETERMINATION WITH MOBILE PHASES CONTAINING LOW AND MEDIUM HYDROPHOBIC ALCOHOLS

C. Sârbu, P. Ioniță, D. Casoni, 2014 .

Stationary Phases and Columns for Size Exclusion

S. Moldoveanu, V. David, 2017 .

Chapter 9 - Headspace Sampling Techniques in Gas Chromatography

S. Moldoveanu, V. David, 2002 .

HANDLING DRAWBACKS OF MASS SPECTROMETRIC DETECTION COUPLED TO LIQUID CHROMATOGRAPHY IN BIOANALYSIS

V. David, A. Medvedovici, F. Albu, 2010 .

Chemical reactions used in analytical derivatizations

S. Moldoveanu, V. David, 2021 .

Derivatization Methods in GC and GC/MS

S. Moldoveanu, V. David, Serban C. Moldoveanu, 2018, Gas Chromatography - Derivatization, Sample Preparation, Application.

Chapter 18 - Chemical Reactions Used in Derivatization

S. Moldoveanu, V. David, 2002 .

General Aspects Regarding the HPLC Analytical Column

S. Moldoveanu, V. David, 2017 .

Solid-Phase Extraction

S. Moldoveanu, V. David, 2015 .

A comparison of chiral separations by supercritical fluid chromatography and high-performance liquid chromatography

M. Locatelli, I. Ali, Syed Dilshad Alam, 2021, Journal of Liquid Chromatography & Related Technologies.

Chromatography as a core step for an analytical procedure

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Sample preparation for large-scale bioanalytical studies based on liquid chromatographic techniques.

Elena Bacalum, V. David, A. Medvedovici, 2018, Biomedical chromatography : BMC.

Comments on sample preparation in chromatography for different types of materials

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Comments on sample preparation in chromatography for different types of materials

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Sample Enrichment by Solid-Phase Extraction for Reaching Parts per Quadrillion Levels in Environmental Analysis

Elena Bacalum, V. David, Toma Galaon, 2019, Chromatographia.

Chapter 11 – Sorbent Extraction

V. David, Serban C. Moidoveanu, 2002 .

Achiral-chiral LC/LC-FLD coupling for determination of carvedilol in plasma samples for bioequivalence purposes.

V. David, A. Medvedovici, Toma Galaon, 2007, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

The role of sample preparation

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Stationary Phases and Columns for Chiral Chromatography

S. Moldoveanu, V. David, 2017 .

Phase Transfer Separations Appfied in Sample Preparations

S. Moldoveanu, V. David, 2002 .

Validated HPLC determination of 2-[(dimethylamino)methyl]cyclohexanone, an impurity in tramadol, using a precolumn derivatisation reaction with 2,4-dinitrophenylhydrazine.

V. David, A. Medvedovici, F. Albu, 2004, Journal of pharmaceutical and biomedical analysis.

Does phase ratio in reversed phase high performance liquid chromatography vary with temperature?

S. Moldoveanu, V. David, Andreia-Cristina Soare, 2020, Journal of chromatography. A.

Sources of Nonlinear van’t Hoff Temperature Dependence in High-Performance Liquid Chromatography

S. Moldoveanu, V. David, Andreia-Cristina Soare, 2019, ACS omega.

Polar Analytical Columns

S. Moldoveanu, V. David, 2017 .

The role of derivatization in chromatography

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Derivatization procedures and their analytical performances for HPLC determination in bioanalysis.

S. Moldoveanu, V. David, Toma Galaon, 2020, Biomedical chromatography : BMC.

Simultaneous ESI-APCI+ ionization and fragmentation pathways for nine benzodiazepines and zolpidem using single quadrupole LC-MS.

V. David, D. Anghel, Toma Galaon, 2013, Drug testing and analysis.

Solutes in HPLC

S. Moldoveanu, V. David, 2013 .

Short Overviews of Analytical Techniques Not Containing an Independent Separation Step

S. Moldoveanu, V. David, 2017 .

Other separation techniques in sample preparation

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Novel voltammetric investigation of dipyridamole at a disposable pencil graphiteelectrode

M. Buleandră, V. David, I. David, 2019, TURKISH JOURNAL OF CHEMISTRY.

Electrochemical behavior study of some selected phenylurea herbicides at activated pencil graphite electrode. Electrooxidation of linuron and monolinuron

M. Buleandră, A. Ciucu, Elena Bacalum, 2019, Microchemical Journal.

Stationary Phases and Columns for Immunoaffinity Type Separations

S. Moldoveanu, V. David, 2017 .

On-Line SPE on Restricted Access Adsorbent for HPLC-MS/MS Analysis of Felodipine in Plasma Samples

V. David, A. Medvedovici, I. Sora, 2010 .

Dependence of the distribution constant in liquid-liquid partition equilibria on the van der Waals molecular surface area.

S. Moldoveanu, V. David, 2013, Journal of separation science.

HPLC-DAD determination of Metformin in human plasma using derivatization with p-nitrobenzoyl chloride in a biphasic system

V. David, A. Medvedovici, F. Tache, 2001 .

Degradation of antibiotics in water by non-thermal plasma treatment.

V. Pârvulescu, C. Bradu, V. David, 2011, Water research.

Bioanalysis of pentoxifylline and related metabolites in plasma samples through LC-MS/MS.

V. David, A. Medvedovici, F. Albu, 2009, Biomedical chromatography : BMC.

RP-HPLC Analytical Columns

S. Moldoveanu, V. David, 2017 .

Solvent extraction

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Variation with temperature of octanol/water partition coefficient for the homologous series from benzene to propylbenzene

S. Moldoveanu, V. David, 2019, SEPARATION SCIENCE PLUS.

Analytical issues in HPLC/MS/MS simultaneous assay of furosemide, spironolactone and canrenone in human plasma samples.

V. David, A. Medvedovici, F. Albu, 2010, Journal of pharmaceutical and biomedical analysis.

Phase transfer in sample preparation

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Pulsed dielectric barrier discharge generated at the gas-liquid interface for the degradation of the organic dye methyl red in aqueous solution

V. Pârvulescu, V. David, M. Magureanu, 2010, 2010 12th International Conference on Optimization of Electrical and Electronic Equipment.

Chapter 19 - Derivatization Reactions for Analytes with Various Functional Groups

V. David, Serban C. Moidoveanu, 2002 .

Metal-triflate ionic liquid systems immobilized onto mesoporous MS41 materials as new and efficient catalysts for N-acylation

D. Vos, P. Jacobs, V. Pârvulescu, 2007 .

HPLC/DAD Assay of Related Impurity Ethyl-4-oxopiperidine-1-carboxylate in Loratadine Through Derivatization with 2,4-Dinitrophenylhydrazine

V. David, A. Medvedovici, F. Tache, 2009 .

LC-MS/MS assay of quinapril and its metabolite quinaprilat for drug bioequivalence evaluation: prospective, concurrential and retrospective method validation.

V. David, A. Medvedovici, I. Sora, 2009, Bioanalysis.

Liquid chromatography-electrospray tandem mass spectrometry method for determination of indapamide in serum for single/multiple dose bioequivalence studies of sustained release formulations.

V. David, A. Medvedovici, F. Albu, 2005, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Chemical Reactions Used in Derivatizations

S. Moldoveanu, V. David, 2015 .

Long-Range Molecular Interactions Involved in the Retention Mechanisms of Liquid Chromatography

N. Grinberg, S. Moldoveanu, V. David, 2017 .

Chapter 7 – Mobile Phases and Their Properties

Victor David, Serban C. Moldoveanu, S. Moldoveanu, 2013 .

Degradation of pharmaceutical compound pentoxifylline in water by non-thermal plasma treatment.

Victor David, Andrei Medvedovici, V. Pârvulescu, 2010, Water research.

QUANTITATIVE CORRELATIONS BETWEEN REVERSED-PHASE LC DATA AND MOLECULAR PARAMETERS FOR SOME WEAKLY RELATED PESTICIDES

M. Hillebrand, V. David, S. Ionescu, 2010 .

Retention Mechanisms in Different HPLC Types

S. Moldoveanu, V. David, 2013 .

Chapter 15 – Other Separation Techniques in Sample Preparation

S. Moldoveanu, V. David, 2002 .

Chromatographic procedures as preliminary separations

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Chapter 10 - Solvent Extraction

S. Moldoveanu, V. David, 2002 .

Alternative sample diluents in bioanalytical LC-MS.

M. Cheregi, V. David, A. Medvedovici, 2013, Bioanalysis.

Validation of a LC-fluorescence method for determination of free captopril in human plasma, using a pre-column derivatization reaction with monobromobimane.

V. David, A. Medvedovici, F. Tache, 2002, Journal of pharmaceutical and biomedical analysis.

Selection of the HPLC Method in Chemical Analysis

S. Moldoveanu, V. David, 2016 .

Liquid extraction and HPLC-DAD assay of hydrochlorothiazide from plasma for a bioequivalence study at the lowest therapeutic dose

D. Miron, V. David, A. Medvedovici, 2000, European journal of drug metabolism and pharmacokinetics.

Characterization of a new norfloxacin metabolite monitored during a bioequivalence study by means of mass spectrometry and quantum computation.

M. Hillebrand, V. David, A. Medvedovici, 2008, Biomedical chromatography : BMC.

Results from solvophobic theory applied to methylene selectivity in reversed-phase HPLC

S. Moldoveanu, V. David, Edvin Caiali, 2018 .

Phase Ratio and Equilibrium Constant in RP-HPLC Obtained from Octanol/Water Partition Constant Through Solvophobic Theory

S. Moldoveanu, V. David, Edvin Caiali, 2017, Chromatographia.

Sample Preparation in Chromatography

Victor David, Serban C. Moldoveanu, S. Moldoveanu, 2002 .

SIMULTANEOUS DETERMINATION OF PARACETAMOL, PROPYPHENAZONE AND CAFFEINE FROM PHARMACEUTICAL PREPARATIONS IN THE PRESENCE OF RELATED SUBSTANCES USING A VALIDATED HPLC-DAD METHOD

Florin Soponar, V. David, G. Moise, 2014 .

Use of an immiscible diluent in ionic liquid / ion pair LC for the assay of an injectable analgesic

V. David, A. Medvedovici, M. Radulescu, 2012 .

Validation of an LC-MS/MS assay of terpene trilactones in Ginkgo biloba extracts and pharmaceutical formulations through standard addition method.

V. David, A. Medvedovici, Daniela Iuliana Sora, 2009, Journal of pharmaceutical and biomedical analysis.

Properties of Analytes and Matrices Determining HPLC Selection

S. Moldoveanu, V. David, 2017 .

Optimization of a liquid–liquid extraction method for HPLC–DAD determination of penicillin-V in human plasma

M. Ionescu, V. David, A. Medvedovici, 2002 .

Evaluation of the phase ratio for three C18 high performance liquid chromatographic columns.

H. Aboul‐Enein, S. Moldoveanu, V. David, 2016, Journal of chromatography. A.

High-throughput liquid-chromatography method with fluorescence detection for reciprocal determination of furosemide or norfloxacin in human plasma.

V. David, A. Medvedovici, I. Sora, 2007, Biomedical chromatography : BMC.

Membrane separations as sample preparation techniques

S. Moldoveanu, V. David, 2021 .

Other Sample Preparation Techniques Not Involving Chemical Modifications of the Analyte

S. Moldoveanu, V. David, 2015 .

Determination of glibenclamide in human plasma by liquid chromatography and atmospheric pressure chemical ionization/MS-MS detection.

V. David, A. Medvedovici, F. Albu, 2007, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Chapter 4 - Chromatography as the Core Step in an Analytical Process

V. David, Serban C. Moidoveanu, 2002 .

Complexation, extraction and determination of the H(3)CHg(+) ion with cadion [1-(p-nitrophenyl)-3-(p'-azobenzene)-triazene].

V. David, A. Danet, 1992, Talanta.

Considerations on MS/MS Detection of Bromazepam after Liquid Chromatographic Separation from Plasma Samples: Application to a Bioequivalence Study

L. Mutihac, V. David, A. Medvedovici, 2007 .

Effect of large volume injection of hydrophobic solvents on the retention of less hydrophobic pharmaceutical solutes in RP-LC.

V. David, A. Medvedovici, Ş. Udrescu, 2008, Journal of separation science.

Retention Phenomena Induced by Large Volume Injection of Solvents Non‐Miscible with the Mobile Phase in Reversed‐Phase Liquid Chromatography

V. David, A. Medvedovici, Cristina Georgiţă, 2007 .

Comparison of Two Sample Preparation Methods for a HPLC-DAD Assay of Tolbutamide from Human Plasma

D. Miron, V. David, A. Medvedovici, 2000 .

Validated ion pair liquid chromatography/fluorescence detection method for assessing the variability of the loratadine metabolism occurring in bioequivalence studies.

V. David, A. Medvedovici, Ş. Udrescu, 2007, Biomedical chromatography : BMC.

Chapter 2 - Sampling and Its Connection with Sample Preparation

S. Moldoveanu, V. David, 2002 .

Nonlinear calibrations on the assay of dilitiazem and two of its metabolites from plasma samples by means of liquid chromatography and ESI/MS(2) detection: application to a bioequivalence study.

V. David, A. Medvedovici, F. Albu, 2008, Biomedical chromatography : BMC.

Determination of cycloserine in human plasma by high-performance liquid chromatography with fluorescence detection, using derivatization with p-benzoquinone.

M. Ionescu, V. David, V. Dumitrescu, 2001, Journal of chromatography. B, Biomedical sciences and applications.

Retention studies for large volume injection of aromatic solvents on phenyl-silica based stationary phase in RP-LC.

Elena Bacalum, M. Cheregi, V. David, 2013, Journal of chromatographic science.

Non-extractive procedure followed by LC/APCI MS/MS analysis of trimetazidine in plasma samples for assessing bioequivalence of immediate/modified release formulations.

V. David, A. Medvedovici, F. Albu, 2005, Biomedical chromatography : BMC.

Basic Information about HPLC

Victor David, Serban C. Moldoveanu, S. Moldoveanu, 2013 .

Synthesis and retention properties of molecularly imprinted polymers for antibiotics containing a 5-nitrofuran ring

G. Radu, E. Rusen, A. Diacon, 2017 .

SPE-HPLC-DAD DETERMINATION OF TRITON X-100 IN PERFUSABLE SOLUTIONS

F. David, V. David, P. Sandra, 2001 .

Capacitive Deionization of Seawater

R. Pekala, J. Poco, J. Farmer, 2008 .

Short Overviews of the Main Analytical Techniques Containing a Separation Step

S. Moldoveanu, V. David, 2017 .

Basic Information Regarding the HPLC Techniques

S. Moldoveanu, V. David, 2017 .

Conditional/non‐conditional probabilities and information entropies assigned to high‐performance liquid chromatography with diode array and fluorescence detection

V. David, A. Medvedovici, 2005 .

Heterogeneous synthesis of amido-type surfactants for bitumenes

V. Pârvulescu, V. David, A. Medvedovici, 2004 .

Structure–Retention Correlation of Some Oxicam Drugs in Reversed‐Phase Liquid Chromatography

V. David, A. Medvedovici, F. Albu, 2004 .

Linearization of the MS response function: case study for metformin assay in plasma samples for bioequivalence purposes.

V. David, A. Medvedovici, F. Albu, 2012, Biomedical chromatography : BMC.

Solvent and salting effects on sample preparation for the determination of fenofibric acid in human plasma by HPLC-DAD

V. David, A. Medvedovici, F. Albu, 2003 .

Parameters that Characterize HPLC Analysis

S. Moldoveanu, V. David, 2013 .

Spectrometric and Voltammetric Characterization of Obidoxime in Aqueous Solutions

M. Cheregi, V. David, I. David, 2018 .

Optimization in the Formaldehyde Determination at Sub-PPM Level from Acetals by HPLC-DAD

F. David, P. Sandra, V. David, 1999 .

Prediction of pesticides chromatographic lipophilicity from the computational molecular descriptors.

C. Sârbu, D. Casoni, V. David, 2011, Journal of separation science.

PARTITION VERSUS ELECTROSTATIC MODEL APPLIED TO THE ION-PAIRING RETENTION PROCESS OF SOME GUANIDINE BASED COMPOUNDS

V. David, M. Radulescu, 2012 .

Ternary water-organic solvent mixtures used for insecticide SPE extraction and analysis with acetylcholinesterase biosensor.

G. Radu, B. Bucur, Madalina-Petruta Bucur, 2022, Analytical biochemistry.

Competitional hydrophobicity driven separations under RP-LC mechanism: application to sulfonylurea congeners.

V. David, A. Medvedovici, Edvin Caiali, 2009, Journal of separation science.

Hydrophobicity Parameter (log Kow) Estimation for Some Phenolic Compounds of Pharmaceutical Interest from Retention Studies with Mobile Phase Composition in Reversed‐Phase Liquid Chromatography

V. David, A. Medvedovici, T. Galaon, 2008 .

Preliminaries to sample preparation

Victor David, Serban C. Moldoveanu, S. Moldoveanu, 2021, Modern Sample Preparation for Chromatography.

Revisiting the dependence of retention factor on the content of organic component in the mobile phase in reversed-phase HPLC.

Elena Bacalum, S. Moldoveanu, V. David, 2023, Journal of separation science.

Dependence of reversed-phase liquid chromatographic retention for aripiprazole and some related chemical impurities on the main elution parameters

Florin Soponar, Mihaela Sandru, V. David, 2016 .

Stationary Phases and Columns for Ion Exchange, Ion-Moderated, and Ligand Exchange Chromatography

S. Moldoveanu, V. David, 2017 .

Electroseparations in sample preparation

S. Moldoveanu, V. David, 2021 .

SPECTROPHOTOMETRY | Diode Array

V. David, A. Medvedovici, 2005 .

Simultaneous assay of metformin and glibenclamide in human plasma based on extraction-less sample preparation procedure and LC/(APCI)MS.

V. David, A. Medvedovici, F. Albu, 2007, Journal of chromatography. B, Analytical technologies in the biomedical and life sciences.

Fast RPLC-UV method on short sub-two microns particles packed column for the assay of tenoxicam in plasma samples.

V. David, A. Medvedovici, Toma Galaon, 2007, Journal of pharmaceutical and biomedical analysis.

Mechanical processing in sample preparation

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.

Chapter 1 - Preparatory Information

S. Moldoveanu, V. David, 2002 .

Unusual Temperature-Retention Dependences Observed for Several Benzodiazepines in RP-HPLC Using Different Mobile Phase Compositions

H. Aboul‐Enein, V. David, D. Anghel, 2013, Chromatographia.

THERMODYNAMIC STUDY OF THE LIQUID CHROMATOGRAPHY RETENTION PROCESS FOR SOME PESTICIDES ON C8 AND C18 SILICA-BASED STATIONARY PHASES

V. David, J. Pêtre, V. Iancu, 2013 .

Equilibrium Types in HPLC

S. Moldoveanu, V. David, 2013 .

Comparative study for the retention of some benzodiazepines in reversed-phase liquid chromatography using C8, C18, C6H5 and CN stationary phases

Elena Bacalum, S. Moldoveanu, V. David, 2023, Revue Roumaine de Chimie.

The Temperature Effect on the Retention of Sildenafil under Reversed-Phase Liquid Chromatography

M. Cheregi, V. David, Andreia-Cristina Soare, 2019, Proceedings.

Variability of temperature dependences of the retention of strongly polar compounds under ZIC-HILIC liquid chromatographic mechanism

Elena Bacalum, V. David, M. Tănase, 2019, Separation Science Plus.

Retention Behavior of Metformin and Related Impurities in Ion‐Pairing Liquid Chromatography

V. David, A. Medvedovici, F. Albu, 2005 .

Large volume injection of 1-octanol as sample diluent in reversed phase liquid chromatography: application in bioanalysis for assaying of indapamide in whole blood.

V. David, A. Medvedovici, I. Sora, 2011, Journal of pharmaceutical and biomedical analysis.

Chemical degradation of polymers for chromatographic analysis

S. Moldoveanu, V. David, 2021, Modern Sample Preparation for Chromatography.