Results 41 to 50 of about 36,252 (237)
Sensors, 2015 A fluidic microchip incorporating a convergent microchannel and a Nafion-nanoporous membrane is proposed for the preconcentration and separation of multi-species samples on a single platform. In the device, sample preconcentration is achieved by means of
Ping-Hsien Chiu +2 more
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Use of a new enrichment nanosorbent for speciation of mercury by FI-CV-ICP-MS [PDF]
, 2015 Mercury is one of the most toxic environmental pollutants and its effects on human and ecosystem health are well known. All mercury species are toxic, with organic mercury compounds generally being more toxic than inorganic species.
Cano-Pavón, José Manuel +3 more
core +1 more source
Gold surface with gold nitride–a surface enhanced Raman scattering active substrate [PDF]
, 2009 The nitration of gold surfaces is a nonpolluting method, which can lead to large scale production of substrates with remarkable properties and applications. We present a topographical study of the nanoscale structure of the gold nitride surfaces produced
Alves, Luis +3 more
core +2 more sources
Membranes, 2023 Supported liquid membranes have been used to implement a hollow fibre liquid-phase microextraction (HF-LPME) method for the preconcentration of Cd(II) in natural waters as a sample preparation step for its determination by high-resolution continuum ...
Juan J. Pinto +2 more
doaj +1 more source
Methylmercury varies more than one order of magnitude in commercial European rice [PDF]
, 2017 P.M. thanks the Royal Thai Government for funding and C.C.B.
Brombach, Christoph-Cornelius +7 more
core +1 more source
absolute preconcentration [PDF]
, 2014 Citation: 'absolute preconcentration' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00027 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms.
openaire +1 more source
Shaping Carbon Nitrides for Advanced Macrostructures
Advanced Materials Technologies, EarlyView.This review examines how carbon nitride can be shaped through a range of printing and interfacial assembly methods. By bringing together additive manufacturing and liquid–liquid structuring concepts, carbon nitride is moving beyond its traditional powder‐based photocatalyst form toward digitally designed robust macroscale architectures with high design
Simona Baluchová, Baris Kumru
wiley +1 more source
The Preconcentration and Determination of Pb2+, Cu2+, Co2+, Ni2+, Fe2+ and Zn2+ Elements in Water Samples Using Citrate Form of Anion-Exchange Resin [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1995 Lead, copper, cobalt, nickel, iron and zinc ions form monocitrate complexes (negative charge) in citrate solution which is absorbed on the citrate form of anion-exchange resins (citrate as counter ion) y exchange of citrate ion with citrate complexes ...
Mohammad Hossein Arbab Zavar +1 more
doaj
Molecules, 2019 The gold abundance in basic rocks, which normally varies between 0.5 and 5 ppb, has served as a very important indicator in many geoscience studies, including those focused on the planetary differentiation, redistribution of elements during the crustal ...
Yan-hong Liu, Bo Wan, Ding-shuai Xue
doaj +1 more source
Sensors, 2023 In this study, aqueous two-phase systems (ATPSs) containing a cationic and anionic surfactants mixture were used for the preconcentration of the synthetic food dyes Allura Red AC, Azorubine, Sunset Yellow, Tartrazine, and Fast Green FCF. A rapid, simple,
Svetlana V. Smirnova, Vladimir V. Apyari
doaj +1 more source