Results 231 to 240 of about 8,156 (254)
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Talanta, 2014
A new on-line flow injection (FI) procedure for the sequential separation, preconcentration and speciation of Cr(III)/Cr(VI) species in different matrices is described based on the combining of solid phase extraction and flame atomic absorption spectrometry (FAAS).
KARTAL, Şenol +5 more
openaire +3 more sources
A new on-line flow injection (FI) procedure for the sequential separation, preconcentration and speciation of Cr(III)/Cr(VI) species in different matrices is described based on the combining of solid phase extraction and flame atomic absorption spectrometry (FAAS).
KARTAL, Şenol +5 more
openaire +3 more sources
Abu Dhabi International Petroleum Exhibition & Conference, 2017
Abstract Enhanced oil recovery (EOR) techniques are very expensive processes especially in harsh reservoir environment such as high temperature, pressure and salinity as the applications of classical EOR techniques have been limited to certain reservoirs.
Ahmed Abdulhamid Mahmoud +1 more
openaire +1 more source
Abstract Enhanced oil recovery (EOR) techniques are very expensive processes especially in harsh reservoir environment such as high temperature, pressure and salinity as the applications of classical EOR techniques have been limited to certain reservoirs.
Ahmed Abdulhamid Mahmoud +1 more
openaire +1 more source
New Journal of Chemistry, 2010
Sequential fluorescence enhancement and fluorescence resonance energy transfer over a zinc ion gradient have been engineered in a two-fluorophore heteroditopic ligand platform. This is the first report that the strategies of metal-coordination modulated photoinduced electron transfer (PET), internal charge transfer (ICT), and fluorescence resonance ...
Robert J. Wandell +2 more
openaire +1 more source
Sequential fluorescence enhancement and fluorescence resonance energy transfer over a zinc ion gradient have been engineered in a two-fluorophore heteroditopic ligand platform. This is the first report that the strategies of metal-coordination modulated photoinduced electron transfer (PET), internal charge transfer (ICT), and fluorescence resonance ...
Robert J. Wandell +2 more
openaire +1 more source
SPE Kingdom of Saudi Arabia Annual Technical Symposium and Exhibition, 2018
Abstract Viscoelastic surfactants are known to be the best for chemical EOR (cEOR) applications as compared to polymers and surfactants because of its dual capability of reducing the oil/water interfacial tension (IFT) and improving the sweep efficiency.
Aneeq Nasir Janjua +2 more
openaire +1 more source
Abstract Viscoelastic surfactants are known to be the best for chemical EOR (cEOR) applications as compared to polymers and surfactants because of its dual capability of reducing the oil/water interfacial tension (IFT) and improving the sweep efficiency.
Aneeq Nasir Janjua +2 more
openaire +1 more source
Magnetic resonance imaging, 2001
The purpose of this study was to assess the feasibility of sequential administration of 2 different MR imaging contrast agents using a single visit protocol to image focal liver abnormalities. Twenty-one patients with known or suspected liver lesions were included in the study.
D R, Martin +4 more
openaire +1 more source
The purpose of this study was to assess the feasibility of sequential administration of 2 different MR imaging contrast agents using a single visit protocol to image focal liver abnormalities. Twenty-one patients with known or suspected liver lesions were included in the study.
D R, Martin +4 more
openaire +1 more source
Separation Science and Technology, 1998
ABSTRACT Polystyrenc-divinylbenzene-based Amberlite XAD-2 was funetionalized with ortho-vanillinthiosemicarbazone and its analytical properties were investigated. The resin was used successfully for the separation and preconcentration of thorium(IV) and uranium(VI) ions prior to their determination by spectrophotometry and by ICAP-AES and GF-AAS ...
V. K. Jain +3 more
openaire +1 more source
ABSTRACT Polystyrenc-divinylbenzene-based Amberlite XAD-2 was funetionalized with ortho-vanillinthiosemicarbazone and its analytical properties were investigated. The resin was used successfully for the separation and preconcentration of thorium(IV) and uranium(VI) ions prior to their determination by spectrophotometry and by ICAP-AES and GF-AAS ...
V. K. Jain +3 more
openaire +1 more source
Sequential extraction of iron-phosphate and calcium-phosphate from sediments by chelating agents
SIL Proceedings, 1922-2010, 1988H. L. Golterman, A. Booman
openaire +1 more source
Chelation during sequential pregnancies: A case report with a twist
Obstetric Medicine, 2022Morri E Markowitz
exaly