Results 21 to 30 of about 44,482 (297)

HPLC fractionation with immunoassay of steroids from nipple aspirate fluid

MethodsX, 2022
Fractionation of steroids allows for multiple assays to be run on a single low volume liquid biopsy, whereas performing the same number of assays without fractionation would require increasing the sample volume by dilution, rendering the concentration of
Richard E. Heinz, Robert T. Chatterton
doaj   +1 more source

Carbon isotope fractionation during aerobic biodegradation of trichloroethene by Burkholderia cepacia G4: a tool to map degradation mechanisms [PDF]

, 2002
The strain Burkholderia cepacia G4 aerobically mineralized trichloroethene (TCE) to CO2 over a time period of similar to20 h. Three biodegradation experiments were conducted with different bacterial optical densities at 540 nm (OD(540)s) in order to test
Schuth, Christoph, Downey, Angela, Larkin, Mike, Bill, Markus, Schuth, C., Bill, M., Markus Bill, Slater, G., Kalin, Robert M., Kalin, R.M., Barth, JAC, Angela Downey, Robert M. Kalin, Larkin, Michael, Slater, Greg F., Christoph Schüth, Larkin, M., Mike Larkin, Kalin, R., Johannes A. C. Barth, Greg Slater, Downey, A., Kalin, Bob, Slater, Greg, Barth, J.A.C., Barth, Johannes A. C.   +25 more
core   +1 more source

Detailed Insights into Lignin Stabilization and Carbohydrate Nature in H-transfer RCF: On the Role of Solvent Fractionation of Lignin Oil in Structural Profiling

, 2022
Reductive Catalytic Fractionation (RCF) of lignocellulosic materials produces lignin oil rich in monomer products and high-quality cellulosic pulps. RCF lignin oil also contains lignin oligomers/polymers and hemicellulose-derived carbohydrates.
Raul, Rinken, Dean, Posthuma, Roberto, Rinaldi   +2 more
core   +1 more source

MANNAN PRECIPITATION FROM ALOE VERA LEAF PULP JUICE USING METHANOL AND ISOPROPYL ALCOHOL AS ANTI-SOLVENT: EXPERIMENTAL AND EMPIRICAL MODELLING APPROACH [PDF]

, 2012
Precipitation of mannan from Aloe vera leaf pulp juice was investigated using anti-solvent precipitation process under room temperature condition. The aims of this work were to study the effects of types (methanol and isopropyl alcohol) and amount of ...
Retnowati, Diah Susetyo, Diah Susetyo Retnowati, Andri Cahyo Kumoro, Kumoro, A.C., Kumoro, Andri Cahyo, Retnowati, D.S.   +5 more
core   +1 more source

Stigmasterol and Stigmasterone from Methanol Extract of Calophyllum soulattri Burm. F. Stem Bark

Jurnal Kimia Sains dan Aplikasi, 2021
Stigmasterol and Stigmasterone from Methanol Extract of Calophyllum soulattri Burm. F. Stem Bark. Calophyllum soulattri Burm. F. has been widely used for herbal medicine. Phytochemical investigation of C.
Surya Dewi Marliyana, Fajar Rakhman Wibowo, Desi Suci Handayani, Triana Kusumaningsih, Venty Suryanti, Maulidan Firdaus, Ema Nur Annisa   +6 more
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Solvent Extractive Fractionation of Ziegler Polystyrene [PDF]

Bulletin of the Chemical Society of Japan, 1962
Abstract The solvent extractive fractional ability has been described, using Ziegler polystyrene as sample. The order in hot extraction is tetra-hydrofuran >dioxane >ethyl methyl ketone ≥ ethyl acetate, while that in cold extraction is benzene >> ethyl methyl ketone≥ethyl acetate=toluene.
Akira Yamada, Yoshio Yamamuro, Masaya Yanagita   +2 more
openaire   +1 more source

Ultra-Micro-Scale-Fractionation (UMSF) as a Powerful Tool for Bioactive Molecules Discovery

Molecules, 2020
Herein is detailed the development and validation of an ultra-micro-scale-fractionation (UMSF) technique for the discovery of plant-based, bioactive molecules, coupling the advantages of ultra-performance liquid chromatography mass spectrometry (UPLC-MS)
Jason L. McCallum, Jennifer N. D. Vacon, Christopher W. Kirby   +2 more
doaj   +1 more source

An improved method for the high isotacticity measurement of polybutene-1

Polymer Testing, 2021
High isotactic polybutene-1 (HiPB) plays important roles in presenting outstanding resistance to creep and crack at high temperature. Therefore, rapid and accurate measurement of the HiPB is extremely important for both synthesis and application of ...
Weiping Zheng, Meichen Han, Yuanjin Zhao, Huafeng Shao, Aihua He   +4 more
doaj   +1 more source

Inhibition of human cytomegalovirus immediate-early gene expression and replication by the ethyl acetate (EtOAc) fraction of Elaeocarpus sylvestris in vitro

BMC Complementary and Alternative Medicine, 2017
Background In immunocompromised patients, human cytomegalovirus (HCMV) infection can lead to severe, life-threatening diseases, such as pneumonitis, hepatitis, gastrointestinal tract disease, and retinitis.
Sohee Bae, Se Chan Kang, Yoon-Jae Song
doaj   +1 more source

Theoretically predicting the solubility of polydisperse polymers using Flory–Huggins theory

JPhys Materials, 2023
Polydispersity affects physical properties of polymeric materials, such as solubility in solvents. Most biobased, synthetic, recycled, mixed, copolymerized, and self-assembled polymers vary in size and chemical structure.
Stijn H M van Leuken, Rolf A T M van Benthem, Remco Tuinier, Mark Vis   +3 more
doaj   +1 more source