Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Warunya Boonjob"'
Publikováno v:
Food Analytical Methods. 11:111-118
An automated sequential injection analysis spectrophotometric assay for the determination of purine alkaloids in coffee drinks was developed. The sample was treated with a carrez reagent for matrix suppression followed by filtration; subsequently, al
Publikováno v:
Analytical and Bioanalytical Chemistry. 407:5719-5728
The use of small scale renewable sorbent material for automated solid phase extraction of multi-residue pharmaceuticals in environmental samples exploiting the sequential injection analysis-bead injection with direct coupling to liquid chromatography
Publikováno v:
Talanta. 117:8-13
A proof of concept of a novel pervaporation sequential injection (PSI) analysis method for automatic non-chromatographic speciation analysis of inorganic arsenic in complex aqueous samples is presented. The method is based on hydride generation of ar
Publikováno v:
Analytical and Bioanalytical Chemistry. 405:8653-8662
A novel and affordable analytical setup is herein reported for automatic flow-through sorptive microextraction of organic contaminants, exploiting polydimethylsiloxane (PDMS) as a front-end to gas chromatography-ion trap-tandem mass spectrometry. The
Publikováno v:
Fuel. 107:192-201
This article reports the application of on-line dynamic chemical fractionation using a stirred-flow chamber for fast characterization of ash-forming metals, namely , K, Ca, Na and Mg, and Al as well in woody biomass residues (bark and twigs) and labo
Publikováno v:
Analytical and Bioanalytical Chemistry. 394:337-349
Two novel dynamic extraction approaches, the so-called sequential injection microcolumn extraction and sequential injection stirred-flow chamber extraction, based on the implementation of a sample-containing container as an external extraction reacto
Publikováno v:
Analytical Chemistry. 80:7319-7326
There is a current trend in automation of leaching tests for trace elements in solid matrixes by use of flow injection based column approaches. However, as a result of the downscaled dimensions of the analytical manifold and execution of a single ext
Autor:
Kitsadate . Wongtidad, Sumittra Charojrochkul, Nitinai . Punbusayakul, Warunya Boonjob, Waret Veerasai, Ron . Beckett, Manop . Masomtub
Publikováno v:
ECS Transactions. 7:1293-1298
Electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV) can be used to study the mechanisms and kinetics of electrochemical reactions at solid-solid interfaces. A thin gold film-yittria stabilized zirconia (Au/YSZ) electrolyte interf
Publikováno v:
Analytical and bioanalytical chemistry. 406(17)
Seven solid phase sorbent materials with reversed-phase, mixed-mode interactions (ion-exchange and reversed-phase), and molecularly imprinted polymers (MIP), namely Oasis HLB, Oasis MAX, Oasis MCX, Bond Elute Plexa, Bond Elute Plexa PAX, Bond Elute P
Publikováno v:
Analytical chemistry. 83(13)
Handling of carbon nanoparticles as sorptive materials in a flow-through packed-bed mode has been to date hampered by undue pressure drop and deteriorated retention efficiency because of nanoparticle bundling and entanglement. To surmount this limita