Results 21 to 30 of about 36,252 (237)

Folding-paper-based preconcentrator for low dispersion of preconcentration plug [PDF]

Micro and Nano Systems Letters, 2017
Ion concentration polarization (ICP) has been widely studied for collecting target analytes as it is a powerful preconcentrator method employed for charged molecules. Although the method is quite robust, simple, cheap, and yields a high preconcentration factor, a major hurdle to be addressed is extracting the preconcentrated samples without dispersing ...
Lee, Kyungjae, Yoo, Yong Kyoung, Han, Sung Il, Lee, Junwoo, Lee, Dohwan, Kim, Cheonjung, Lee, Jeong Hoon   +6 more
openaire   +1 more source

Countercurrent chromatography in analytical chemistry (IUPAC technical report) [PDF]

, 2009
© 2009 IUPACCountercurrent chromatography (CCC) is a generic term covering all forms of liquid-liquid chromatography that use a support-free liquid stationary phase held in place by a simple centrifugal or complex centrifugal force field. Biphasic liquid
Abbey, Abe, Abe, Abe, Akiba, Akiba, Akiba, Alain Berthod, Bauer, Bauer, Berthod, Berthod, Berthod, Berthod, Berthod, Berthod, Billardello, Boris Spivakov, Chen, Chen, Chen, Chen, Chmutova, Chmutova, Chmutova, Conway, Conway, Conway, Countercurrent Chromatography, Dekker, Fedotov, Fitz, Friesen, Fujita, Garcia Dominguez, Hashimoto, Hashimoto, Ian A. Sutherland, Ikai, Ito, Ito, Ito, Ito, Ito, Jin, Jin, Jin, Kawamura, Kawamura, Kidwell, Kitazume, Kitazume, Kitazume, Kitazume, Kitazume, Kong, Lee, Lee, Lee, Lee, Liu, Ma, Ma, Mandava, Mandava, Marston, Marston, Marston, Maryutina, Maryutina, Maryutina, Maryutina, Maryutina, Matsuda, Menet, Muralidharan, Nakamura, Nakamura, Oleg Shpigun, Pauli, Pukhovskaya, Ruiz, Ruiz, Ruth, Schaufelberger, Schaufelberger, Schreiber, Shang, Spivakov, Spivakov, Spivakov, Stark, Sutherland, Tanaka, Tatyana Maryutina, Thurman, Tian, Usuda, Usuda, Wang, Wang, Watkins, Winterhalter, Wood, Wu, Yanagida, Yang, Yang, Yang, Yoshida, Yu, Zhang, Zhang   +112 more
core   +2 more sources

Metal–organic frameworks meet polymer brushes: enhanced crystalline film growth induced by macromolecular primers [PDF]

, 2017
We used poly-(3-sulfopropylmethacrylate) brushes as macromolecular 3D primers to promote heterogeneous nucleation and growth of archetypal ZIF-8 MOF thin films.
Allegretto, Juan Alejandro, Azzaroni, Omar, Bindini, Elisa, Giussi, Juan Martín, Rafti, Matias, Segovia, Gustavo Manuel, Tuninetti, Jimena Soledad   +6 more
core   +3 more sources

Determination of polycyclic aromatic hydrocarbons in tea infusions samples by high performance liquid chromatography with fluorimetric detection [PDF]

, 2017
This study focuses on the contamination of 15 polycyclic aromatic hydrocarbons (PAHs) , recommended by the US Environmental Protection Agency, in 10 tea brands distributed in Italy.
Apriceno, Azzurra, Francesca Tortora, And, Girelli, Anna Maria, Tarola, Anna Maria   +3 more
core   +1 more source

Nanofluidic preconcentration and detection of nanoparticles [PDF]

Journal of Applied Physics, 2012
The fast detection and characterization of nanoparticles, such as viruses or environmental pollutants, are important in fields ranging from biosensing to quality control. However, most existing techniques have practical throughput limitations, which significantly limit their applicability to low analyte concentrations.
Anirban, Mitra, Filipp, Ignatovich, Lukas, Novotny   +2 more
openaire   +2 more sources

Novel Approach to Sample Preconcentration by Solvent Evaporation in Flow Analysis

Molecules, 2020
A preconcentration module operated in flow mode and integrated with a sequential injection system with spectrophotometric detection was developed.
Justyna Paluch, Joanna Kozak, Marcin Wieczorek, Michał Woźniakiewicz, Małgorzata Gołąb, Ewelina Półtorak, Sławomir Kalinowski, Paweł Kościelniak   +7 more
doaj   +1 more source

Preconcentration method for trace metals in natural waters using 4-morpholine dithiocarbamate [PDF]

Journal of the Serbian Chemical Society, 2002
The optimum conditions were found for the preconcentration of trace metals in natural waters and model samples with standard metals concentrations by using 4-morpholine dithiocarbamate. The formed complexes were extracted with chloroform.
Todorović Zoran B., Polić Predrag S., Sabo Tibor J., Cakić Milorad D.   +3 more
doaj   +1 more source

Automated online preconcentration system for the determination of trace amounts of lead using Pb-selective resin and inductively coupled plasma-atomic emission spectrometry [PDF]

, 2006
An automated sequential-injection online preconcentration system was developed for the determination of lead by inductively coupled plasma - atomic emission spectrometry (ICP-AES). The preconcentration of lead was performed with a minicolumn containing a
A. Sabarudin, Economou A., N. Lenghor, S. Motomizu, Y. Furusho, Y. Liping   +5 more
core   +1 more source

Photoactive Titanium Dioxide Films with Embedded Gold Nanoparticles for Quantitative Determination of Mercury Traces in Humic Matter-Containing Freshwaters

Nanomaterials, 2021
Mercury detection in humic matter-containing natural waters is often associated with environmental harmful substances for sample preparation. Herein we report an approach based on photoactive titanium dioxide films with embedded gold nanoparticles (AuNP ...
Vivian Stock, Anna Mutschler, Mika Lindén, Kerstin Leopold   +3 more
doaj   +1 more source

Synthesis of chitosan-based resins modified with tris(2-aminoethyl)amine moiety and its application to collection/concentration and determination of trace mercury by inductively coupled plasma atomic emission spectrometry [PDF]

, 2008
A novel chitosan-based chelating resin modified with tris(2-aminoethyl)amine moiety (CCTS-TAA) was synthesized. and its characteristics in the collection/concentration of mercury was examined.
Hakim, Lukman, Motomizu, Shoji, Oshima, Mitsuko, Oshita, Koji, Sabarudin, Akhmad   +4 more
core   +1 more source