Zobrazeno 1 - 10
of 6 656
pro vyhledávání: '"Standard addition"'
Publikováno v:
Indonesian Journal of Chemistry, Vol 24, Iss 5, Pp 1377-1385 (2024)
Simultaneous spectrofluorometric method described for the determination of trimethoprim (TMP) and sulfamethoxazole (SMZ) in pure and pharmaceutical preparations using H-point standard addition method (HPSAM) according to the reaction of nanograms of
Externí odkaz:
https://doaj.org/article/f02b092b25d946878b613c9b233fb49d
Publikováno v:
Journal of Materials Research and Technology, Vol 29, Iss , Pp 540-549 (2024)
Dopamine (DA), a critical biomolecule involved in neurotransmission, is implicated in a variety of neurological disorders. Therefore, accurate detection of DA is crucial for the swift diagnosis of conditions arising from abnormal DA levels. Consequen
Externí odkaz:
https://doaj.org/article/ddc9d919f12841929b6d37d4d74523b0
Autor:
Tolkyn Kurmanbayeva, Bauyrzhan Bukenov, Zhansaya Rymzhanova, Nargiz Kazhkenova, Aibolat Imangabassov, Aruzhan Smail, Nurbi Karimkyzy, Bulat Kenessov
Publikováno v:
Advances in Sample Preparation, Vol 10, Iss , Pp 100117- (2024)
This paper represents an improved method for on-site quantitation of benzene, toluene, ethylbenzene, and xylenes (BTEX) in atmospheric air using solid-phase microextraction (SPME) and portable gas chromatography with a split/splitless inlet and photo
Externí odkaz:
https://doaj.org/article/7e3fde786c074371a21030b7f8c85131
Publikováno v:
Journal of Saudi Chemical Society, Vol 28, Iss 3, Pp 101875- (2024)
The primary objective of this research endeavor is to develop a highly sensitive and selective electrochemical sensor for the accurate detection of hydroquinone (HQ), a prevalent environmental contaminant. To achieve this, we employed a novel nanocom
Externí odkaz:
https://doaj.org/article/b4ee76d22323407a9a2d9c566570ad10
Publikováno v:
Journal of Science: Advanced Materials and Devices, Vol 9, Iss 1, Pp 100668- (2024)
Our current research focuses on developing an efficient electrochemical Dopamine sensor for diagnosing neurological disorders related to abnormal Dopamine levels. We utilized a Ga2O3-doped ZnO decorated SWCNT (Ga2O3·ZnO@SWCNT) nanocomposite to modif
Externí odkaz:
https://doaj.org/article/e8a27dc35da44261bb7c63a5e6fad335
Publikováno v:
Chemistry, Vol 5, Iss 4, Pp 2588-2597 (2023)
It is well known that beer is more than 90% water, and therefore, water can be one of the main sources of fluoride in beers. With this in mind, the goal of the present study was to determine the mass concentration of fluoride in 53 beer samples. Usin
Externí odkaz:
https://doaj.org/article/b645c7d768844c85bc83df79285b19c3
Publikováno v:
Current Issues in Molecular Biology, Vol 45, Iss 12, Pp 9354-9367 (2023)
In neonatal screening, amino acids have a significant diagnostic role. Determination of their values may identify abnormal conditions. Early diagnosis and continuous monitoring of amino acid disorders results in a better disease outcome. An easy and
Externí odkaz:
https://doaj.org/article/4eb864985ce64482a26fe9cd1d7225f0
Publikováno v:
Ibn Al-Haitham Journal for Pure and Applied Sciences, Vol 37, Iss 1 (2024)
Ciprofloxacin (Cip) and hydrocortisone (Hyd) were simultaneously measured as hydrochloride and sodium succinate, respectively, using the H-point standard addition method (HPSAM). The approach can precisely identify Cip in the presence of Hyd with var
Externí odkaz:
https://doaj.org/article/2807f66958e841159375236dceb82c2c
Autor:
Andriana Surleva, Lyudmila Angelova, Darya Ilieva, Vladislava Ivanova, Olya Surleva, Katrin Chavdarova
Publikováno v:
Applied Sciences, Vol 14, Iss 8, p 3281 (2024)
This paper discusses approaches for verification of methods of measurements of chemical and physical characteristics of specific samples. The limitations of well-known approaches are discussed. Some examples of alternatives are given to demonstrate s
Externí odkaz:
https://doaj.org/article/84bc13b6b69f4cfbb619a11bf644792b
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 10, Pp n/a-n/a (2023)
Abstract Siderite (FeCO3) is an important ferrous iron carbonate in the geochemical cycling of iron, as it is a sink for iron under reducing conditions. However, its detection is not straightforward with classical analytical approaches because in nat
Externí odkaz:
https://doaj.org/article/fcf6f30cf8f0455dbad2836b4f8536a7