Zobrazeno 1 - 10
of 32
pro vyhledávání: '"Rashed N. Herqash"'
Autor:
Ali S. Alqahtani, Mohammad Khalid Parvez, Abdulaziz M. Alqahtani, Omer I. Fantoukh, Rashed N. Herqash, Ehab M. Elzayat, Fahd A. Nasr, Essam Ezzeldin, Mousallam M. Almousallam, Mohammad Raish
Publikováno v:
Separations, Vol 10, Iss 8, p 442 (2023)
Catha edulis Forsk., commonly known as Khat, is a stimulant plant that is chewed in the Horn of Africa and the southern regions of the Arabian Peninsula. It is often used alongside conventional drugs, but there is a lack of research on its interactio
Externí odkaz:
https://doaj.org/article/e6542754ce374dac919d29c2809394d0
Autor:
Perwez Alam, Omar M. Noman, Rashed N. Herqash, Omer M. Almarfadi, Ali Akhtar, Ali S. Alqahtani
Publikováno v:
Separations, Vol 9, Iss 6, p 142 (2022)
In this experiment, the Box–Behnken design (BBD) of the response surface methodology (RSM) was used to optimize the ultrasound-assisted extraction variables (liquid-to-solid ratio, extraction temperature, and time) to obtain the maximum yield of ph
Externí odkaz:
https://doaj.org/article/38e91dd16ca345c9a4154c684580d973
Autor:
Ali S. Alqahtani, Rashed N. Herqash, Omar M. Noman, Md. Tabish Rehman, Abdelaaty A. Shahat, Mohamed F. Alajmi, Fahd A. Nasr
Publikováno v:
Journal of Analytical Methods in Chemistry, Vol 2021 (2021)
The oleo-gum-resin of Commiphora myrrha is one of the most known natural antimicrobial agents, mainly due to its furanosesquiterpenes. A validated method based on sample extraction by matrix solid-phase dispersion (MSPD) followed by high-performance
Externí odkaz:
https://doaj.org/article/4e40e1ccfa884d71aa1d3459909254d1
Autor:
Omar M. Noman, Rashed N. Herqash, Abdelaaty A. Shahat, Syed Rizwan Ahamad, Hamza Mechchate, Abdulaziz N. Almoqbil, Ali S. Alqahtani
Publikováno v:
Applied Sciences, Vol 12, Iss 7, p 3227 (2022)
Centaurea is one of the most important genera within the family Asteraceae. An investigation of the phytochemical composition of Centaurea bruguieriana using Gas-Chromatography coupled to Mass spectrometry (GC-MS) was performed. Antimicrobial activit
Externí odkaz:
https://doaj.org/article/f1a15c3ffbf946f9a95aedc1eb31e9dd
Autor:
Perwez Alam, Omar M. Noman, Rashed N. Herqash, Omer M. Almarfadi, Ali Akhtar, Ali S. Alqahtani
Publikováno v:
Molecules, Vol 27, Iss 1, p 298 (2022)
In this study, ultrasound-assisted extraction conditions were optimized to maximize the yields of sennoside A, sennoside B, aloe-emodin, emodin, and chrysophanol from S. alexandrina (aerial parts). The three UAE factors, extraction temperature (S1),
Externí odkaz:
https://doaj.org/article/f49c41ed70f34f4b9ba3a0153d5c60c6
Autor:
Mashail N. AlZain, Rashed N. Herqash, Abdulaziz N. Almoqbil, Omer Mohammed Almarfadi, Mansour N. Ibrahim, Riaz Ullah, Omar M. Noman
Publikováno v:
Journal of Analytical Methods in Chemistry, Vol 2020 (2020)
Matrix solid phase dispersion (MSPD) trailed by HPLC is a quick and fruitful technique utilized for fortitude of flavonoids such as Catechin, Kaempferol, Quercetin, and Rutin existing in P. acacia. The trial parameters that influenced the extraction
Externí odkaz:
https://doaj.org/article/5590145c08834b63ad1d94ef317120d2
Autor:
Abdulrahman A. Almehizia, Haitham AlRabiah, Ahmed H. Bakheit, Eman S. G. Hassan, Rashed N. Herqash, Ali Saber Abdelhameed
Publikováno v:
Royal Society Open Science, Vol 7, Iss 1 (2020)
The interactions of novel anti-cancer therapeutic agents with the different plasma and tissue components, specifically serum albumins, have lately gained considerable attention due to the significant influence of such interactions on the pharmacokine
Externí odkaz:
https://doaj.org/article/929c4b8c83b64588b2a1c7eebb3d7c4f
Autor:
Ali S. Alqahtani, Rashed N. Herqash, Faleh Alqahtani, Syed Rizwan Ahamad, Fahd A. Nasr, Omar M. Noman
Publikováno v:
Separations, Vol 8, Iss 12, p 239 (2021)
A rapid, simple, and sensitive gas chromatography–tandem mass spectrometry (GC–MS) method was established and validated for simultaneous determination of four volatile compounds, namely curzerene, methoxyfuranodiene, β-elemene, and α-pinene in
Externí odkaz:
https://doaj.org/article/7e32864fecb94c33af4bd0eb074376cd
Autor:
Mashail N. AlZain, Abdulrahman A. AlAtar, Abdulaziz A. Alqarawi, Ramzi A. Mothana, Omar M. Noman, Rashed N. Herqash, Ebtesam S. AlSheddi, Nida N. Farshori, Perwez Alam
Publikováno v:
Separations, Vol 7, Iss 4, p 65 (2020)
Symbiotic arbuscular mycorrhizal fungi (AMF) play a major role in plant development, growth, and relationships with the environment through a change in the accumulation of secondary metabolites; hence, we planned to investigate AMF’s influence on s
Externí odkaz:
https://doaj.org/article/3ca75624386648daa434faadb879ed6e
Publikováno v:
Molecules, Vol 25, Iss 18, p 4075 (2020)
Darunavir (DRV) is a potent antiviral drug used for treatment of infections with human immunodeficiency virus (HIV). Effective and safe treatment with DRV requires its therapeutic drug monitoring (TDM) in patient’s plasma during therapy. To support
Externí odkaz:
https://doaj.org/article/318c460834774f36a277f339815568b5