Zobrazeno 1 - 10
of 2 599
pro vyhledávání: '"spectrophotometric method"'
Autor:
Bushra Alattab, Fares Abdullah Alarbagi, Maher Ali Almaqtari, Entesar Alhuraishi, Hussein Al-Maydama
Publikováno v:
Eclética Química, Vol 49 (2024)
A green analytical method, a simple, fast, and cost-effective simultaneous spectrophotometric method using two chemometric techniques, the partial least square regression (PLS) and principal component regression (PCR), for determining a combination o
Externí odkaz:
https://doaj.org/article/6faff1b7345848ed9add3afbba887cfd
Autor:
Abdussamed Mohammed Ali Saeed, Intisar Adil Shihab Al-Hammoodi, Mohammed Salim Al-Enizzi, Suhair Mahfoodh Salih
Publikováno v:
Pakistan Journal of Analytical & Environmental Chemistry, Vol 24, Iss 2, Pp 135-144 (2023)
A novel green, straightforward, and precise spectrophotometric method for determination of mesalazine drug has been developed. This method relies on an oxidative coupling reaction between mesalazine and the environmentally friendly phenoxazine reagen
Externí odkaz:
https://doaj.org/article/d50748a6e7a84b3990df48c932e371da
Autor:
Ayembilla, J.A. a, ∗, Quarcoo, A. a, Whyte, B.K. a, Gordon, A. a, Otu, P.N.Y. a, Bonah, D.A. a, Gedza, W.E. a, Gmakame, J. a, Andorful, I.A. a, Owusu-Ansah, L. b
Publikováno v:
In Heliyon 30 January 2024 10(2)
Autor:
J.A. Ayembilla, A. Quarcoo, B.K. Whyte, A. Gordon, P.N.Y. Otu, D.A. Bonah, W.E. Gedza, J. Gmakame, I.A. Andorful, L. Owusu-Ansah
Publikováno v:
Heliyon, Vol 10, Iss 2, Pp e24519- (2024)
Introduction: Potassium bromate (KBrO3) is an oxidizing agent added to flour to improve bread quality. However, KBrO3 is nephrotoxic, and a class B carcinogen banned in most countries, including Ghana. Aim: This study aimed to determine the residual
Externí odkaz:
https://doaj.org/article/d1a085fd9d864bc59480c8d97e123d63
Publikováno v:
Results in Chemistry, Vol 7, Iss , Pp 101261- (2024)
3-Acetyl-11-keto-β-boswellic acid (AKBA) is a phytoconstituent derived from Boswellia serrata extract. It shows anti-rheumatic activity by selectively and non-competitively inhibiting the 5-Lipoxygenase (5-LOX) enzyme. AKBA is utilized for complex n
Externí odkaz:
https://doaj.org/article/6185d52e8ba348458eb0c543ce06cbb7
Publikováno v:
Scientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, Vol 24, Iss 2, Pp 81-96 (2023)
The uncatalyzed oxidation of L(-)arabinose by manganese (VII) in acidic medium of H2SO4 and constant ionic strength (using potassium nitrate) were investigated kinetically. The change in concentration of manganese (VII) was followed using spectrop
Externí odkaz:
https://doaj.org/article/11794317ef56448cbc87474f7d086710
Autor:
Marwa sabbar Falih, Ruba Fahmi Abbas, Neda Ibrahim Mahdi, Nisreen Kais Abood, Mohammed Jasim M Hassan
Publikováno v:
MethodsX, Vol 11, Iss , Pp 102437- (2023)
A new, simple, and sensitive FIA-spectrophotometric method has been developed for evaluating pure amoxicillin and pharmaceutical formulations. The FIA method involves the reaction of dapsone with sodium nitrite and hydrochloric acid. Subsequently, th
Externí odkaz:
https://doaj.org/article/64313e2c4d614c54a7cfcf8794476a75
Publikováno v:
Eclética Química, Vol 48, Iss 1, Pp 72-94 (2023)
A new, quick, easy, affordable and eco-friendly simultaneous spectrophotometric method for determining a combined sitagliptin and metformin hydrochloride in pharmaceutical formulations was developed and validated using two chemometrics technique. The
Externí odkaz:
https://doaj.org/article/e477c95e7bec4f84ab472867b6941f0e
Publikováno v:
ARO-The Scientific Journal of Koya University, Vol 11, Iss 2 (2023)
In this study, a simple and indirect spectrophotometric method for the quantification of atenolol in pharmaceutical formulations, utilizing a natural food dye extracted from red beet root, is presented. The process involves the oxidation of atenolol
Externí odkaz:
https://doaj.org/article/30b12a5e6f5346c59d9b57be7c9a543f
Publikováno v:
Arabian Journal of Chemistry, Vol 16, Iss 8, Pp 104868- (2023)
In this study, magnetic ferrite nanoparticles CoFe2O4 were synthesized by combustion method. Magnetic solid phase extraction was carried out by ultrasonic assisted (UAMSPE) followed by UV/Vis spectrophotometer (UAMSPE-UV/Vis) to extract malachite gre
Externí odkaz:
https://doaj.org/article/155f5c93e4054ee38a78680c63953eea