Zobrazeno 1 - 10
of 1 823
pro vyhledávání: '"UV-vis spectrophotometry"'
Publikováno v:
Water Science and Technology, Vol 89, Iss 7, Pp 1613-1629 (2024)
This study develops a novel double-loop contraction and C value sorting selection-based shrinkage frog-leaping algorithm (double-contractive cognitive random field [DC-CRF]) to mitigate the interference of complex salts and ions in seawater on the ul
Externí odkaz:
https://doaj.org/article/a43848eaf46e4af1b441acdee59a99a3
Publikováno v:
Química Nova, Vol 48, Iss 3 (2024)
In the present study a spectrophotometric method for Cr(VI) determination in organic fertilizers, especially those from tanning industry residues, is proposed. Conditions for chromium extraction, extract clean-up and analytical characteristics of the
Externí odkaz:
https://doaj.org/article/d5f261e2a5a44645bda30c6dba9ff6f2
Autor:
Amani Kurdi, Waleed Alhussaini, Abdulrahman Alawaji, Abdullah Alhudathi, Rakan Alharbi, Faisal Binsaleh, Yazeed Alghamidi, Abdulkareem Al Bekairy, Abdulmalik Alkatheri, Imadul Islam, Ibrahim Farh, Ezzeldeen Ghanem, Mahmoud Mansour
Publikováno v:
Heliyon, Vol 10, Iss 12, Pp e32551- (2024)
The present study compared the performance of Ultra-high performance liquid chromatography (UHPLC) and UV–Vis spectrophotometry for the quantification of metformin hydrochloride in five commercially available metformin hydrochloride products with d
Externí odkaz:
https://doaj.org/article/672a653fa7f04ec9801df8201397375a
Publikováno v:
Jurnal Pijar MIPA (Pengkajian Ilmu dan Pengajaran Matematika dan Ilmu Pengetahuan Alam), Vol 18, Iss 6, Pp 976-980 (2023)
Crackers are a popular snack product and have long been known by the people of Indonesia as a complement to meals that are often not left behind; without these snacks, people often feel something is missing in their diet. Manufacturers often misuse s
Externí odkaz:
https://doaj.org/article/77582491fcab4d16b3d8ed76849ac48a
Autor:
Valentina Pavić, Elvira Kovač-Andrić, Ivan Ćorić, Stella Rebić, Zvonimir Užarević, Vlatka Gvozdić
Publikováno v:
Molecules, Vol 29, Iss 16, p 3961 (2024)
Green synthesis employs environmentally friendly, biodegradable substances for the production of nanomaterials. This study aims to develop an innovative method for synthesizing silver nanoparticles (AgNPs) using a methanolic extract of Fomes fomentar
Externí odkaz:
https://doaj.org/article/074a09d31a9248aea77400720bf91f71
Autor:
Firyal Aqillah, Muhamad Diki Permana, Diana Rakhmawaty Eddy, M. Lutfi Firdaus, Takehiro Takei, Iman Rahayu
Publikováno v:
Results in Chemistry, Vol 7, Iss , Pp 101418- (2024)
Heavy metals are the main pollutants in the environment because of their toxic effects on human health. One of the heavy metals in drinking water is copper ion (Cu2+). In this study, gold nanoparticles (AuNPs) were used to detect Cu2+ using a smartph
Externí odkaz:
https://doaj.org/article/27aec056612c4292b91a5d87ea7578e3
Autor:
Karnelasatri Karnelasatri, Candra Yulius Tahya, Mahda Uli Adila, Junius Hardy, Sri Wahyu Ningsih Munthe
Publikováno v:
Indonesian Journal of Chemical Research, Vol 11, Iss 3 (2024)
The analytical method to determine the compound content in both food and cosmetic products must be carried out carefully to ensure the validity of the analysis results. Hydroquinone has been widely found to be used as an active whitening agent in whi
Externí odkaz:
https://doaj.org/article/9b82e81dc18544ffa454e166631453d2
Publikováno v:
J-PEK (Jurnal Pembelajaran Kimia), Vol 8, Iss 1, Pp 27-34 (2023)
The order of the reaction is the number of concentration factors that affect the speed of a chemical reaction. The reaction order can be used to determine how the adsorption process is in the colouring process based on determining the linear regressi
Externí odkaz:
https://doaj.org/article/0f9ca4b4c89645558656f5d07420308c
Autor:
Mina Vasheghani Farahani, Sajad Karami, Hassan Sereshti, Shokouh Mahpishanian, Somayeh Koupaei Malek, Shahabaldin Rezania
Publikováno v:
ChemEngineering, Vol 8, Iss 3, p 47 (2024)
A straightforward, fast and efficient analytical method was developed which utilizes a magnetic composite called three-dimensional graphene (3D-G@Fe3O4) as an adsorbent to recover nitrite ions (NO2−) from environmental water samples. The investigat
Externí odkaz:
https://doaj.org/article/b0479e540f6b4daa9703ad74f3845984
Autor:
György Fekete, András Sebők, Szandra Klátyik, Zsolt István Varga, János Grósz, Imre Czinkota, András Székács, László Aleksza
Publikováno v:
Microorganisms, Vol 12, Iss 6, p 1050 (2024)
Chlorella vulgaris is of great importance in numerous exploratory or industrial applications (e.g., medicals, food, and feed additives). Rapid quantification of algal biomass is crucial in photobioreactors for the optimization of nutrient management
Externí odkaz:
https://doaj.org/article/0f4c261498004344b8bd7efd6c5d832f