| Sorbent, device, matrix and application in microextraction by packed sorbent (MEPS): a review L Yang, R Said, M Abdel-Rehim Journal of Chromatography B 1043, 33-43, 2017 | 117 | 2017 |
| Determination of four immunosuppressive drugs in whole blood using MEPS and LC–MS/MS allowing automated sample work-up and analysis R Said, A Pohanka, M Abdel-Rehim, O Beck Journal of Chromatography B 897, 42-49, 2012 | 75 | 2012 |
| Rapid and sensitive method for determination of cyclophosphamide in patients plasma samples utilizing microextraction by packed sorbent online with liquid chromatography‐tandem … R Said, Z Hassan, M Hassan, M Abdel‐Rehim Journal of Liquid Chromatography & Related Technologies 31 (5), 683-694, 2008 | 69 | 2008 |
| Solid phase microextraction and related techniques for drugs in biological samples MM Moein, R Said, F Bassyouni, M Abdel-Rehim Journal of analytical methods in chemistry 2014, 2014 | 64 | 2014 |
| Determination of remifentanil in human plasma by liquid chromatography–tandem mass spectrometry utilizing micro extraction in packed syringe (MEPS) as sample preparation R Said, A Pohanka, M Andersson, O Beck, M Abdel-Rehim Journal of Chromatography B 879 (11-12), 815-818, 2011 | 60 | 2011 |
| Quantification of tacrolimus and three demethylated metabolites in human whole blood using LC–ESI–MS/MS IR Dubbelboer, A Pohanka, R Said, S Rosenborg, O Beck Therapeutic drug monitoring 34 (2), 134-142, 2012 | 57 | 2012 |
| Microextraction by packed sorbent for LC–MS/MS determination of drugs in whole blood samples R Said, M Kamel, A El-Beqqali, M Abdel-Rehim Bioanalysis 2 (2), 197-205, 2010 | 50 | 2010 |
| Microextraction by packed sorbent MM Moein, R Said, M Abdel-Rehim Bioanalysis 7 (17), 2155-2161, 2015 | 37 | 2015 |
| Comparative phytochemical profile and biological activity of four major medicinal halophytes from Qassim flora HA Mohammed, HM Ali, KA Qureshi, M Alsharidah, YI Kandil, R Said, ... Plants 10 (10), 2208, 2021 | 31 | 2021 |
| Cyclophosphamide pharmacokinetics in mice: a comparison between retro orbital sampling versus serial tail vein bleeding R Said, M Abdel-Rehim, B Sadeghi, S Al-Hashemi, Z Hassan, M Hassan The open pharmacology journal 1 (1), 2007 | 31 | 2007 |
| On-line determination of cyclophosphamide in blood samples utilizing microextraction by packed sorbent and liquid chromatography tandem mass spectrometry (MEPS-LC-MS/MS) M Kamel, R Said, A Elbeqqali, F Bassyouni, M Abdel-Rehim The Open Spectroscopy Journal 3 (1), 2009 | 12 | 2009 |
| High performance liquid chromatography–Mass spectrometric bioanalytical method for the determination of dapoxetine in human plasma: Application for bioequivalence study R Said, B Arafat, T Arafat Journal of chromatography B 1149, 122154, 2020 | 10 | 2020 |
| Pharmacophore modeling and 3D-QSAR studies of 15-hydroxyprostaglandin dehydrogenase (15-PGDH) inhibitors BO Al-Najjar, AK Shakya, FG Saqallah, R Said NISCAIR-CSIR, India, 2017 | 7 | 2017 |
| An LC-MS/MS method for determination of triple drugs combination of valsartan, amlodipine and hydrochlorothiazide in human plasma for bioequivalence study R Said, B Arafat, T Arafat, E Mallah Current Pharmaceutical Analysis 17 (2), 241-253, 2021 | 5 | 2021 |
| Decentralization of COVID-19 molecular diagnosis, a success story from Jordan A Qaqish, M Al-Omari, MM Abbas, R Said, M Al Tamimi, M Ghazo Journal of Global Health 12, 2022 | 2 | 2022 |
| LC-MS/MS Analytical Method for Determination of Montelukast in Human Plasma and its Application to a Bioequivalence Study R Said Current Pharmaceutical Analysis 19 (2), 163-175, 2023 | 1 | 2023 |
| The effect of excessive coffee consumption, in relation to diterpenes levels of medium-roasted coffee, on non-high-density lipoprotein cholesterol level in healthy men S Awwad, A Abu-Zaiton, R Issa, R Said, A Sundookah, M Habash, ... Pharmacia 70 (1), 49-59, 2023 | 1 | 2023 |
| Application of New Technology: MEPS and LC-MS/MS for Determination of Therapeutic Drugs R Said PQDT-Global, 2010 | 1 | 2010 |
| Analytical and pharmacological studies of cyclophosphamide R Said Institutionen för laboratoriemedicin/Department of Laboratory Medicine, 2008 | 1 | 2008 |
| Magnetic iron oxide-based nanozymes: from synthesis to application A Ghazzy, H Nsairat, R Said, OA Sibai, A AbuRuman, AS Shraim Nanoscale Advances, 2024 | | 2024 |
