Results 61 to 70 of about 21,988 (160)

Determination of Diethyl Phthalate and Polyhexamethylene Guanidine in Surrogate Alcohol from Russia

International Journal of Analytical Chemistry, 2011
Analytical methods based on spectroscopic techniques were developed and validated for the determination of diethyl phthalate (DEP) and polyhexamethylene guanidine (PHMG), which may occur in unrecorded alcohol.
Yulia B. Monakhova, Thomas Kuballa, Jenny Leitz, Dirk W. Lachenmeier   +3 more
doaj   +1 more source

Evaluation of oxalic acid extraction and quantification methods in the different purslane (Portulaca oleracea L.) matrices and spinach (Spinacea oleracea)

MethodsX
Purslane (Portulaca oleracea) and spinach (Spinacea oleracea) are species with elevated levels of oxalic acid, an antinutrient that interferes in the bioaccessibility of minerals such as calcium and iron.
Pâmela Gomes de Souza, Juliana Azevedo Lima Pallone, Eduardo Adilson Orlando, Augusto César Costa-Santos, Ellen Mayra Menezes Ayres, Amauri Rosenthal, Anderson Junger Teodoro   +6 more
doaj   +1 more source

PENGGUNAAN ARANG AKTIF KULIT KACANG TANAH (Arachis hypogaea) SEBAGAI ADSORBEN DALAM PRODUKSI KAROTEN DARI FRAKSI OLEIN MINYAK SAWIT KASAR

Kovalen: Jurnal Riset Kimia, 2016
Research using active charcoal leather peanut (Arachis hypogaea) as adsorbent in carotene production of crude palm oil olein fraction has conducted. This study aims to determine the ratio between active charcoal and olein that can produce the highest ...
Nurhaeni Nurhaeni, Ni Ketut Sumarni, Eka Dwiyanti Tombilayuk   +2 more
doaj  

Carbon nanomaterial-derived lung burden analysis using UV-Vis spectrophotometry and proteinase K digestion. [PDF]

Part Fibre Toxicol, 2020
Lee DK, Jeon S, Jeong J, Song KS, Cho WS.   +4 more
europepmc   +1 more source

METHODS DEVELOPMENT AND VALIDATION OF CEFPROZIL BY UV-VIS SPECTROPHOTOMETRY

American Journal of Research, 2018
Thorat D.B, Paunikar Ashwini
openaire   +1 more source

Quantitative determination of formaldehyde by spectrophotometry utilizing multivariate Curve resolution alternating least squares

Bulletin of the Chemical Society of Ethiopia, 2012
Formaldehyde is a vastly used material in industry. Nowadays, it is proven that formaldehyde is toxic and carcinogenic. Thus providing a reliable method for its quantitative determination is very important. This study proposes a UV-Vis spectrophotometric
Mohammadreza Khanmohammadi, Nasser Dalali, Farshad Karami, Amir Bagheri Garmarudi, Hossein Nemati   +4 more
doaj  

Personalized nanomedicine: a rapid, sensitive, and selective UV-vis spectrophotometry method for the quantification of nanostructured PEG-asparaginase activity in children's plasma. [PDF]

Int J Nanomedicine, 2018
Zhang Y, Wang Y, Wang R, Shen Y, Xu J, Webster TJ, Fang Y.   +6 more
europepmc   +1 more source

Chemometric and learning-based multivariate models for quantifying a challenging quaternary mixture of bupropion, dextromethorphan, and their related impurities by UV-Vis spectrophotometry. [PDF]

BMC Chem
Algmaal SE, Boltia SA, El Saharty YS, Ghoniem NS.   +3 more
europepmc   +1 more source

Long-Term Stability of Nanobubbles Generated via Pressure Oscillation-Hydrodynamic Cavitation: A Rapid Assessment by UV-Vis Spectrophotometry. [PDF]

Nanomaterials (Basel)
Huang L, Dong J, Chen M, Li L, Zhang R.
europepmc   +1 more source

Hollow Fiber-Supported ZIF-8@GO Reinforced Sol-Gel for Preconcentration of Paraquat Before Determination by UV-Vis Spectrophotometry. [PDF]

J Anal Methods Chem
Vaezi N, Dalali N.
europepmc   +1 more source