Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Walaa Zarad"'
Autor:
Hanan Farouk, Hager Ebrahim, Heba Sonbol, Monika Malak, Maha Kamal, Noha Ibrahim, Ahmed Shawky, Walaa Zarad, Ahmed Emad, Samy Emara
Publikováno v:
Separations, Vol 10, Iss 6, p 351 (2023)
Despite the fact that strong routine separation methodologies can give reliable specificity and validity at usual working pharmaceutical concentrations, they may fail at very low concentration levels. This poses considerable challenges for researcher
Externí odkaz:
https://doaj.org/article/af4ba00307d94952bd5ea531e34a7dfb
Autor:
Hager Ebrahim, Heba Sonbol, Monika Malak, Ahmed Ali, Yasmine Aboulella, Ghada Hadad, Walaa Zarad, Samy Emara, Lamyaa Bazan
Publikováno v:
Separations, Vol 10, Iss 2, p 136 (2023)
A simple, selective, rapid, sensitive and less costly green automated solid phase extraction bio-analytical high-performance liquid chromatographic-based technique with fluorescence detection (Aut-SPE-BA-HPLC-FL) for the quantification of levofloxaci
Externí odkaz:
https://doaj.org/article/1f53b78e9d25469a80c223f8e41dc4c3
Autor:
Sara Amer, Walaa Zarad, Heba El-Gendy, Randa Abdel-Salam, Ghada Hadad, Samy Emara, Tsutomu Masujima
Publikováno v:
Journal of Advanced Research, Vol 26, Iss , Pp 1-13 (2020)
Introduction: In recent years, analytical screening methods for simultaneous detection of multivitamins have gained substantial attention to ensure quality and public confidence in dietary supplements. Even so, few analytical methods have been propos
Externí odkaz:
https://doaj.org/article/4e505534131e43ca9dcd74a0596811dc
Autor:
Walaa Zarad, Ahmed Shawky, Ahmed Ali, Yasmine Aboulella, Maha Kamal, Tsutomu Masujima, Samy Emara, Heba El-Gendy
Publikováno v:
Talanta Open, Vol 3, Iss , Pp 100041- (2021)
A rapid, sensitive, selective and simple capillary zone electrophoresis (CZE) method, by integration of field amplified sample stacking (FASS) and in-capillary derivatization (in-CapD) coupled with fluorescence (FL) detection (CZE-FASS-in-CapD-FL), h
Externí odkaz:
https://doaj.org/article/1f3220a9300540bfbf73cbd81d91c8b1
Autor:
Sara Amer, Walaa Zarad, Heba El-Gendy, Randa Abdel-Salam, Ghada Hadad, Tsutomu Masujima, Samy Emara
Publikováno v:
Royal Society Open Science, Vol 6, Iss 11 (2019)
A rapid, sensitive and direct nano-electrospray ionization-tandem mass spectrometry (NS-ESI-MS/MS) method, using an offline nanospray (NS) capillary, has been developed and validated for the analysis of metronidazole (MTZ). A mixture of 2 µl MTZ sam
Externí odkaz:
https://doaj.org/article/b5845fc704a7479b95e3e841dc965d73
Publikováno v:
Journal of Pharmaceutical Analysis, Vol 3, Iss 1, Pp 28-35 (2013)
A new simple, sensitive and precise green analytical procedure using an automated packed-reactor derivatization technique coupled with on-line solid-phase enrichment (SPEn) has been developed and evaluated to determine trace levels of methotrexate (M
Externí odkaz:
https://doaj.org/article/bc8108fe1e2b44c7999949b6d8b9f5ef
Autor:
Hanan Farouk, Hager Ebrahim, Heba Sonbol, Monika Malak, Maha Kamal, Noha Ibrahim, Ahmed Shawky, Walaa Zarad, Ahmed Emad, Samy Emara
Despite the fact that strong routine separation methodologies can give reliable specificity and validity at usual working pharmaceuticals concentrations, they may fail at very low concentration levels. This poses considerable challenges for researche
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1d1f27acfbcdbd53cbc0decc26bfd79
https://doi.org/10.20944/preprints202305.0509.v1
https://doi.org/10.20944/preprints202305.0509.v1
Autor:
Heba El-Gendy, Walaa Zarad, Lamyaa Bazan, Ahmed Ali, Yasmine Aboulella, Maha Kamal, Samy Emara, Ahmed Shawky
Publikováno v:
Analytical biochemistry. 659
A rapid back flushed (BF) direct sample injection (DSI) high-performance liquid chromatography (HPLC) with UV detection (BF-DSI-HPLC-UV) has been developed to determine terbinafine (TERB) in human serum. For online solid phase extraction step, an iso
Autor:
Walaa Zarad, Heba El-Gendy, Samy Emara, Tsutomu Masujima, Randa A. Abdel-Salam, Ghada Hadad, Sara Amer
Publikováno v:
Journal of Advanced Research
Journal of Advanced Research, Vol 26, Iss, Pp 1-13 (2020)
Journal of Advanced Research, Vol 26, Iss, Pp 1-13 (2020)
Graphical abstract
Introduction In recent years, analytical screening methods for simultaneous detection of multivitamins have gained substantial attention to ensure quality and public confidence in dietary supplements. Even so, few analytical m
Introduction In recent years, analytical screening methods for simultaneous detection of multivitamins have gained substantial attention to ensure quality and public confidence in dietary supplements. Even so, few analytical m
Autor:
Samy Emara, Randa A. Abdel Salam, Walaa Zarad, Sara Amer, Tsutoma Masujima, Ghada M. Hadad, Heba El Gendy
Publikováno v:
Records of Pharmaceutical and Biomedical Sciences. 4:24-31
Mass spectrometry is one of the most powerful techniques for detection and identification. Due to its sensitivity and selectivity, exact mass of analytes, and in effect, their relative fragments, allow for total structure information. As so, mass spe