Results 131 to 140 of about 409,894 (333)
Studies on bile acids: The microquantitative separation of cellular bile acids by gas-liquid chromatography [PDF]
T Okishio, P Padmanabhan, G Maureen
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In nitrogen vacancies‐rich nickel nitride (Ni3N‐VN), a local microenvironment of nitrogen vacancies and adjacent Ni sites is formed. The electron‐rich Ni‐sites can be converted to NiOOH at a lower potential, and urea adsorption on the electron‐deficient nitrogen vacancy region is conducive to its partial dissociation, conceiving to efficient urea ...
Chengwei Ji+10 more
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Detection and Identification of Bacteria by Gas Chromatography [PDF]
Y. Henis+2 more
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This study explores single‐crystal organic field‐effect transistors (SC‐OFETs) based on 5,15‐bisaryl‐tetrabenzoporphyrin derivatives. It highlights the impact of meso‐substituted groups on molecular packing and charge transport. Among the derivatives, C8Ph‐BP achieves the highest hole mobility (1.64 cm2 V−¹ s−¹) due to enhanced π‐stacking with ...
Kazuya Miyazaki+8 more
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Thin Layer, Column, and Gas Liquid Chromatography of Resin Acid Esters and Related Terpenes. [PDF]
Torbjörn Norin+4 more
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Nano‐octahedron Co3O4 decorated graphene composite electrode for selective and simultaneous detection of dopamine. The detection limit of 0.09 µM, and linear range from 1 to 500 µM are reported. The synergistic effect of nano octahedron Co3O4 and graphene results in excellent performance of the sensor in terms of selectivity and sensitivity.
Swathi Tharani Dharmalingam+5 more
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The influence of copper oxidation states on TiO₂/ZSM‐5 catalysts is investigated for photocatalytic CO2 reduction to methanol. A Cuδ⁺‐modified Ti₂/ZSM‐5 catalyst (CTZ‐1) exhibits superior activity due to enhanced electronhole separation, the presence of Ti3⁺, and a core–shell structure.
Wibawa Hendra Saputera+10 more
wiley +1 more source
Hyocholic acid as internal standard for quantitation of human fecal bile acids
After hyocholate is added to a fecal homogenate, the bile acids are extracted, purified by thin-layer chromatography, and quantitated by gas–liquid chromatography as methyl ester trifluoroacetates on QF-1 columns.
M. T. Ravi Subbiah
doaj
Mathematical modelling of flow and adsorption in a gas chromatograph [PDF]
In this paper, a mathematical model is developed to describe the evolution of the concentration of compounds through a gas chromatography column. The model couples mass balances and kinetic equations for all components. Both single and multiple-component cases are considered with constant or variable velocity. Non-dimensionalisation indicates the small
arxiv