Results 11 to 20 of about 1,030,834 (343)

Three-dimensional ZnS/MoS2 on cellulose paper for determination of Digoxin in urine and plasma [PDF]

Nanochemistry Research
The current study describes the in-situ growth of ZnS/MoS2 on cellulose paper using the thin-film microextraction (TFME) method. On cellulose paper, ZnS/MoS2 was grown using a simple, easy, and inexpensive hydrothermal method.
Marzieh Piryaei, Mir Mahdi Abolghasemi, Sodabeh Memari   +2 more
doaj   +1 more source

Chemical Compositions, Antioxidant and Antimicrobial Activities of the Essential Oil and Extracts of Lamiaceae Family (Ocimum basilicum and Thymbra spicata) from Turkey

International Journal of Secondary Metabolite, 2017
Lamiaceae has numerous proven biological properties. Our aim was to investigate the antioxidant and antimicrobial activities and chemical composition of essential oil and extracts of Ocimum basilicum and Thymbra spicata.
Güler İnci Tanrıkulu, Ömer Ertürk, Ceren Yavuz, Zehra Can, Hilal Ebru Çakır   +4 more
doaj   +1 more source

Antioxidant capacity and characteristics of theaflavin catechins and ginger freeze-dried extract as affected by extraction techniques

International Journal of Food Properties, 2021
The aim of current research was to determine the effect of different extraction techniques on the antioxidant capacity of green tea, black tea and ginger polyphenols. Initially, the raw materials were subjected to compositional analysis.
Ali Imran, Muhammad Umair Arshad, Hafsah Sherwani, Rabia Shabir Ahmad, Muhammad Sajid Arshad, Farhan Saeed, Ghulam Hussain, Muhammad Afzaal, Muhammad Imran, Usman Naeem, Ali Ikram, Faqir M. Anjum   +11 more
doaj   +1 more source

Plasma L-ergothioneine measurement by high-performance liquid chromatography and capillary electrophoresis after a pre-column derivatization with 5-iodoacetamidofluorescein (5-IAF) and fluorescence detection [PDF]

, 2013
Two sensitive and reproducible capillary electrophoresis and high-performance liquid chromatography-fluorescence procedures were established for quantitative determination of L-egothioneine in plasma.
Carru, Ciriaco, Deiana, Luca, Erre, Gian Luca, Pinna, Gérard Aimé, Pintus, Gianfranco, Pisanu, Elisabetta, Sotgia, Salvatore, Zinellu, Angelo   +7 more
core   +2 more sources

The study of phenolic compounds and antioxidant activity of raw materials of Heliopsis helianthoides (l.) sweet

Current Issues in Pharmacy and Medical Sciences, 2021
Using high performance liquid chromatography (HPLC), we studied the chemical composition and antioxidant activity of bioactive substances in the roots, leaves, flowers and seeds of Heliopsis helianthoides.
Pavlenko-Badnaoui Mariia, Protska Viktoriia, Burda Nadiia, Zhuravel Iryna, Kuznetsova Viktoriia   +4 more
doaj   +1 more source

Stability of extemporaneously prepared ophthalmic solutions for mydriasis [PDF]

, 2018
Purpose Results of an evaluation of the physical and chemical stability of extemporaneously prepared adult and pediatric ophthalmic solutions containing combinations of phenylephrine, tropicamide, and cyclopentolate are reported.
Camp, Nicole A., Gilbert, Justine M., Hughes, Susan E., Nadra, Jennifer T., Zhao, Fang   +4 more
core   +2 more sources

Dispersive liquid-liquid microextraction for determining urinary muconic acid as benzene biological indicator [PDF]

Journal of the Serbian Chemical Society
The monitoring of occupational exposure to chemicals is essential for assessing the workplace. In the case of hazardous and carcinogenic chemicals, such as benzene, occupational monitoring becomes even more crucial.
Moghadasi Abolfazl, Yousefinejad Saeed, Soleimani Esmaeel, Taghvaei Sajjad, Jafai Saeed   +4 more
doaj   +1 more source

Extraction and determination of Benzoyl-urea insecticides in some fresh fruits using dispersive liquid phase micro-extraction and HPLC method [PDF]

Bihdāsht-i Mavādd-i Ghaz̠āyī, 2021
To improve the quality and increase the shelf life of agricultural products, many pesticides are widely used. Although the use of pesticides in agricultural applications provides a wide range of beneficial effects, overuse of these substances results in ...
J. Khandaghi, M. R. Afshar Mogaddam
doaj   +1 more source

Analysis of imidazoles and triazoles in biological samples after MicroExtraction by packed sorbent [PDF]

, 2017
This paper reports the MEPS-HPLC-DAD method for the simultaneous determination of 12 azole drugs (bifonazole, butoconazole, clotrimazole, econazole, itraconazole, ketoconazole, miconazole, posaconazole, ravuconazole, terconazole, tioconazole and ...
Campestre, Cristina, Locatelli, Marcello, Guglielmi, Paolo, De Luca, Elisa, Bellagamba, Giuseppe, Menta, Sergio, Zengin, Gokhan, Celia, Christian, Di Marzio, Luisa, Carradori, Simone   +9 more
core   +1 more source

The release of biologically hazardous chemical compounds from orthodontic adhesive systems used in Europe and in the USA — an in vitro study

Polimery, 2015
The study assessed the chemical stability of ConTec LC, Resilence, Light Bond and TransbondXT orthodontic adhesive resins. The subject of the analysis was the release of HEMA (2-hydroxyethylmethacrylate), TEGDMA (triethylene glycol dimethacrylate ...
Konrad Małkiewicz, Piotr Wychowański, Elżbieta Małkiewicz, Dorota Olczak-Kowalczyk, Jadwiga Turło   +4 more
doaj   +1 more source