Results 91 to 100 of about 22,613 (275)

DIFFERENTIAL SPECTROPHOTOMETRY IN THE INFRARED

, 1955
Author Institution: Rohm and Haas CompanyThe double-beam principle, basic to most effective differential spectrophotometry, permits direct comparison of the transmittance of two beams.
Cooper, C. V.
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Investigation of the Phase‐Separation Point During CO2 Absorption in the DETA–Sulfolane–Water System

Carbon and Hydrogen, EarlyView.
Optical scattering diagnostics combined with generalized solubility product modeling enables quantitative prediction of phase separation in DETA–sulfolane–water biphasic CO2 absorbents. ABSTRACT The phase‐separation behavior of liquid–liquid biphasic amine absorbents is typically identified using bubbling reactors, where visual observation is employed ...
Dongfang Guo, Huanjun Wang, Beiqi Sun, Dong Guo, Guoxun Ben, Zhigang Tang, Hongwei Li   +6 more
wiley   +1 more source

An Ambient Photocatalytic Approach to In‐Situ Prepare Cobalt/Cobalt Phosphide and Cobalt/Cobalt Phosphide@Graphene Heterojunction Nanomaterials With Optimized Charge Separation Effects for Highly Efficient Relayed Electrocatalytic NOX− Reduction to NH3

Carbon Energy, EarlyView.
A visible‐light‐driven ambient photocatalytic method in‐situ fabricates Co/CoP‐x and Co/CoP@rGO heterojunction with enhanced charge separation, enabling highly efficient relayed electrocatalytic NOx− reduction to NH3 with outstanding Faraday efficiency and ammonia productivity.
Xin Zhao, Chuanjun Wang, Shenjie Liu, Guoqiang Wang, Jing Dong, Chen Lei, Geoffrey I. N. Waterhouse, Jing Xu   +7 more
wiley   +1 more source

Successive Azide and DNA Functionalization for Reversible and Controlled Association of Single‐Wall Carbon Nanotubes

Chemistry – A European Journal, EarlyView.
A newly synthesized bifunctional azide—diazonium linker allows robust one‐step introduction of azido groups to single‐wall carbon nanotubes. Versatility of the azido groups as reactive handles is demonstrated by further derivatization with 6‐carboxyfluorescein and oligonucleotides.
Razieh Moosavi, Tharun K. Kotammagari, Pia Damlin, Mikko Salomäki, Mika Lastusaari, Han Li, Tuomas Lönnberg   +6 more
wiley   +1 more source

Release of multicomponent pheromones from porous fibres

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Surface engineering empowers a polymer exclusion net to serve dual functions: physical exclusion and pheromonal release, allowing for pest control in agricultural crops. In previous work, a net woven from porous fibres releasing simple, single‐component alarm pheromones showed promising results in field tests.
Darius Klassen, William Simon, Olivier Ngoy, Mikaël Larose, Catherine Pouchet, Gérald Chouinard, Marie‐Josée Dumont, Jason R. Tavares   +7 more
wiley   +1 more source

Investigation in the Use of Infrared Absorption Spectrophotometry

, 1958
Three rather unrelated projects in infrared spectrophotometry were carried out by the writer. First, some effort was expended in trying to find cell windows which were suitably transparent to infrared radiation and yet water insoluable.
Murcott, Richard Henry
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Isolation of Diosgenin from Ethanol Extract of Gadung Tuber (Dioscorea hispida Dennst.) and Identification with The UV-Visible Spectrophotometry and Fourier Transform Infrared

, 2023
Background: Gadung tuber (Dioscorea hispida Dennst.) is widely spread in Indonesia, but has not been fully studied. Gadung tubers have various chemical compounds, one of which is diosgenin. Diosgenin belongs to the steroid saponin class which can be used
Rivai, Muhammad
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Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Investigation of in vivo measurement of cerebral cytochrome-c-oxidase redox changes using near-infrared spectroscopy in patients with orthostatic hypotension

, 2007
We have previously used a continuous four wavelength near infrared spectrometer to measure changes in the cerebral concentrations of oxy- (Δ[HbO2] and deoxy- haemoglobin (Δ[HHb]) during head-up tilt in patients with primary autonomic failure.
Tachtsidis, I., Cooper, C.E., Smith, M., Leung, T.S., Delpy, D.T., Elwell, C.E., Tisdall, M.   +6 more
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Quantification of Chlorthalidone in Bulk and Pharmaceutical Dosage form by UV, Infrared Spectrophotometry and Spectrofluorimetry. [PDF]

, 2014
The present study Chlorthalidone is an official drug of IP/BP and USP , Review of literature indicates that several methods have been reported for the estimation of chlorthalidone by UV-Visible spectrophotometric and RP-HPLC.
Senthilkumar, I
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