| An overview of the common methods used to measure treatment adherence LA Anghel, AM Farcas, RN Oprean Medicine and pharmacy reports 92 (2), 117, 2019 | 357 | 2019 |
| Analysis of recent pharmaceutical regulatory documents on analytical method validation E Rozet, A Ceccato, C Hubert, E Ziemons, R Oprean, S Rudaz, ... Journal of Chromatography A 1158 (1-2), 111-125, 2007 | 331 | 2007 |
| Bovine serum albumin interactions with metal complexes T Topală, A Bodoki, L Oprean, R Oprean Clujul medical 87 (4), 215, 2014 | 285 | 2014 |
| Polyphenolic Content, Antioxidant and Antimicrobial Activities of Lycium barbarum L. and Lycium chinense Mill. Leaves A Mocan, L Vlase, DC Vodnar, C Bischin, D Hanganu, AM Gheldiu, ... Molecules 19 (7), 10056-10073, 2014 | 236 | 2014 |
| Comparative Studies on Polyphenolic Composition, Antioxidant and Antimicrobial Activities of Schisandra chinensis Leaves and Fruits A Mocan, G Crișan, L Vlase, O Crișan, DC Vodnar, O Raita, AM Gheldiu, ... Molecules 19 (9), 15162-15179, 2014 | 192 | 2014 |
| The development of spectrophotometric and electroanalytical methods for ascorbic acid and acetaminophen and their applications in the analysis of effervescent dosage forms R Săndulescu, S Mirel, R Oprean Journal of pharmaceutical and biomedical analysis 23 (1), 77-87, 2000 | 185 | 2000 |
| A Comparative Analysis of the Chemical Composition, Anti-Inflammatory, and Antinociceptive Effects of the Essential Oils from Three Species of Mentha Cultivated … C Mogosan, O Vostinaru, R Oprean, C Heghes, L Filip, G Balica, ... Molecules 22 (2), 263, 2017 | 105 | 2017 |
| Application of new methodologies based on design of experiments, independent component analysis and design space for robust optimization in liquid chromatography B Debrus, P Lebrun, A Ceccato, G Caliaro, E Rozet, I Nistor, R Oprean, ... Analytica Chimica Acta 691 (1-2), 33-42, 2011 | 103 | 2011 |
| Essential oils analysis. I. Evaluation of essential oils composition using both GC and MS fingerprints. R Oprean, M Tamas, R Sandulescu, L Roman Journal of pharmaceutical and biomedical analysis 18 (4-5), 651-657, 1998 | 97 | 1998 |
| Medication adherence and persistence in patients with autoimmune rheumatic diseases: a narrative review LA Anghel, AM Farcaş, RN Oprean Patient preference and adherence, 1151-1166, 2018 | 86 | 2018 |
| Biomimetic electrochemical sensor for the highly selective detection of azithromycin in biological samples IA Stoian, BC Iacob, CL Dudaș, L Barbu-Tudoran, D Bogdan, IO Marian, ... Biosensors and Bioelectronics 155, 112098, 2020 | 82 | 2020 |
| Fast determination of colchicine by TLC-densitometry from pharmaceuticals and vegetal extracts E Bodoki, R Oprean, L Vlase, M Tamas, R Sandulescu Journal of pharmaceutical and biomedical analysis 37 (5), 971-977, 2005 | 76 | 2005 |
| Experimental techniques employed in the study of metal complexes-DNA–interactions T Topală, A Bodoki, L Oprean, R Oprean Exp. Tech 62 (6), 1, 2014 | 67 | 2014 |
| Essential oils analysis. II. Mass spectra identification of terpene and phenylpropane derivatives R Oprean, L Oprean, M Tamas, R Sandulescu, L Roman Journal of pharmaceutical and biomedical analysis 24 (5-6), 1163-1168, 2001 | 61 | 2001 |
| Comparison of GC-MS and TLC techniques for asarone isomers determination R Oprean, M Tamas, L Roman Journal of pharmaceutical and biomedical analysis 18 (1-2), 227-234, 1998 | 61 | 1998 |
| Simultaneous enantiospecific recognition of several β-blocker enantiomers using molecularly imprinted polymer-based electrochemical sensor BC Iacob, E Bodoki, A Florea, AE Bodoki, R Oprean Analytical chemistry 87 (5), 2755-2763, 2015 | 60 | 2015 |
| The importance of the granulocyte-colony stimulating factor in oncology S Cetean, C Căinap, AM Constantin, S Căinap, A Gherman, L Oprean, ... Clujul medical 88 (4), 468, 2015 | 58 | 2015 |
| Chemical composition of the essential oils of Ocimum basilicum L. cultivated in Romania D Benedec, I Oniga, R Oprean, M Tamas Farmacia 57 (5), 625-629, 2009 | 55 | 2009 |
| Global chemical reactivity parameters for several chiral beta-blockers from the Density Functional Theory viewpoint MM Talmaciu, E Bodoki, R Oprean Clujul medical 89 (4), 513, 2016 | 54 | 2016 |
| TLC-UV densitometric and GC-MSD methods for simultaneous quantification of morphine and codeine in poppy capsules DS Popa, R Oprean, E Curea, N Preda Journal of pharmaceutical and biomedical analysis 18 (4-5), 645-650, 1998 | 48 | 1998 |