Results 61 to 70 of about 848,230 (289)

Fatty Acid Composition, Tocopherol and Sterol Contents in Linseed (Linum usitatissimum L.) Varieties [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2017
The oil contents of linseeds were determined between 39.9% (Antares) and 43.3%  (Railinus). The oleic acid contents of seed oils varied between 0.8% (Maroc) and 24.8 (Railinus).
Bertrand Matthäus, Mehmet Musa Özcan
doaj  

Comparison of immunochromatography, thin layer chromatography and gas chromatography techniques for drug detection in urine

مجله علمی دانشگاه علوم پزشکی کردستان, 2021
Background and Aim: Nowadays, drug abuse is a major problem in societies, and detection of drugs in urine is very important.  In general, immunochromatography (ICG) and thin-layer chromatography (TLC) are routine methods for the detection of drugs in ...
Mohammad Ahmadia khosroshahi, Parvin Gharbani   +1 more
doaj  

Occurrence of squalene and cholesterol in various species of Czech freshwater fish

Czech Journal of Food Sciences, 2007
The triterpenoid hydrocarbon squalene, C30H50, abundantly occurring in nature, is known as a substance with a high anti-tumour activity proven by a number of research studies.
Zdenka Kopicová, Slavomíra Vavreinová
doaj   +1 more source

Global Urinary Volatolomics with (GC×)GC-TOF-MS

Analytical Chemistry, 2023
Urinary volatolomics offers a noninvasive approach for disease detection and monitoring. Herein we present an improved methodology for global volatolomic profiling. Wide coverage was achieved by utilizing a multiphase sorbent for volatile organic compound (VOC) extraction.
Antonis Myridakis, Qing Wen, Piers R. Boshier, Aaron G. Parker, Ilaria Belluomo, Evangelos Handakas, George B. Hanna   +6 more
openaire   +3 more sources

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

FEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli, Mohammad Nour Alsamsam, Ugnė Bagdonaitė, Van Truc Vu, Chun‐Jen Huang, Polina Kuzhir, Mindaugas Zaremba, Aurimas Kopūstas, Marijonas Tutkus   +8 more
wiley   +1 more source

The Potential of Lime Juice in Reducing Fe Levels and Improving the Quality of Clove Leaf Oil Using Complexometry and Testing Its Antioxidant Activity Using DPPH (1,1-Diphenyl-2-picrylhydrazil)

Biology, Medicine & Natural Product Chemistry
Clove leaf oil from Samigaluh, Kulon Progo has high Fe content and low eugenol content due to an ineffective distillation process. This study aims to analyze the ability of lime juice as a purifying agent in reducing iron content through complexometry ...
Teti Wulan Wulandari, Susy Yunita Prabawati   +1 more
doaj   +1 more source

Organic geochemical characteristics, depositional environment and hydrocarbon potential of bituminous marls in Bozcahüyük (Seyitömer/Kütahya) Basin

Bulletin of the Mineral Research and Exploration, 2021
In this study, the geochemical properties, sedimentation conditions and hydrocarbon potential of the bituminous marls, having quite rich organic carbon content (average 9.27% TOC), composed of gray-green colored, dominant marl lithology with marl ...
Ali Sarı, Fatih Büyük
doaj   +1 more source

Identifying transcription factors controlling the basal expression of human MRP4 highlights a substantial role for Sp1

FEBS Open Bio, EarlyView.
The MRP4 transporter exports several drugs and signaling molecules. Here, we identified key promoter elements regulating basal MRP4 expression. Using reporter assays, we defined a conserved region with essential Sp1 and contributory Ets sites, which controlled basal MRP4 expression.
Debora Singer, Angelique Kragl, Katrin Ziems, Juliane Glaubitz, Sophie Grammbauer, Susanne Hildebrandt, Mladen V. Tzvetkov, Gabriele Jedlitschky   +7 more
wiley   +1 more source

GC [PDF]

, 2019
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openaire   +3 more sources

Differentiation of Methylenedioxybenzylpiperazines and Ethoxybenzylpiperazines by GC-IRD and GC-MS [PDF]

Journal of Chromatographic Science, 2012
The substituted benzylpiperazines, 3,4-methylenedioxybenzylpiperazine, its regioisomer 2,3-methylenedioxybenzylpiperazine and three isobaric ring substituted ethoxybenzylpiperazines have equal mass and many common mass spectral fragment ions. The mass spectra of the three ethoxybenzylpiperazines yield a unique fragment at m/z 107 that allows the ...
Karim M, Abdel-Hay, Tamer, Awad, Jack, Deruiter, C Randall, Clark   +3 more
openaire   +2 more sources