Matches in SemOpenAlex for { <https://semopenalex.org/work/W2816231627> ?p ?o ?g. }
Showing items 1 to 75 of
75
with 100 items per page.
- W2816231627 abstract "This study was devoted to the characterization and use of two types of laboratory-made miniaturized amperometric detectors. First, an amperometric microcylindrical detector (μCD) for HPLC is described. It is based on a microwire working electrode placed across the flow of mobile phase in Teflon tubing connected directly to the column outlet. The Pt- CD was employed for the detection of selected hydroxy and amino derivatives of naphthalene. The repeatability of the detector response is satisfactory (< 1 %) in the concentration range 2·10-7 6·10-5 mol L-1 and detection limits achieved were 7.8·10-8 mol L-1, 1.1·10-7 mol L-1, 2.5·10-7 mol L-1 and 2,8·10-7 mol L-1 for 1-naphthylamine, 2-naphthylamine, 1-naphthol, and 2-naphthol, respectively. The Cu- CD was used as a selective detector for the HPLC analysis of selected amino acids, based on their complexation reaction with Cu2+ from Cu microwire electrode. Due to a different electron transfer principle, the detector shows a higher background current and noise than Pt- CD; nevertheless, it enables the detection of amino acids with limits of detection in the range 1.4·10-6 mol L-1 (histidine) to 1.2·10-5 mol L-1 (tryptophan). Second, an amperometric detector with boron-doped diamond microelectrode connected to capillary zone electrophoresis was employed for the detection of 2-naphthylamine, 1-naphthol and 2-naphthol in column. The microelectrode was fabricated by coating electrochemically sharpened platinum wires with thin films of polycrystalline boron-doped diamond. The calculated electrode areas were (1.5-4.5)·10-2 mm2. The diamond microelectrodes exhibited good electroanalytical performance with a low peak-to-peak noise ~1 pA, low and stable background current and repeatable responses for studied analytes. Limits of detection for 1- and 2-naphthol were established as 9.5·10-8 mol L-1 and 9.0·10-8 mol L-1, respectively. Stable response of all the working electrodes described and their small dimensions are promising for their possible use in micro-HPLC or capillary electrophoresis in microchip format." @default.
- W2816231627 created "2018-07-19" @default.
- W2816231627 creator A5000861589 @default.
- W2816231627 creator A5009704768 @default.
- W2816231627 creator A5020155589 @default.
- W2816231627 creator A5021221126 @default.
- W2816231627 creator A5057672278 @default.
- W2816231627 creator A5091420589 @default.
- W2816231627 date "2006-03-15" @default.
- W2816231627 modified "2023-10-03" @default.
- W2816231627 title "Miniaturized Amperometric Detectors for HPLC and Capillary Zone Electrophoresis" @default.
- W2816231627 hasPublicationYear "2006" @default.
- W2816231627 type Work @default.
- W2816231627 sameAs 2816231627 @default.
- W2816231627 citedByCount "1" @default.
- W2816231627 crossrefType "journal-article" @default.
- W2816231627 hasAuthorship W2816231627A5000861589 @default.
- W2816231627 hasAuthorship W2816231627A5009704768 @default.
- W2816231627 hasAuthorship W2816231627A5020155589 @default.
- W2816231627 hasAuthorship W2816231627A5021221126 @default.
- W2816231627 hasAuthorship W2816231627A5057672278 @default.
- W2816231627 hasAuthorship W2816231627A5091420589 @default.
- W2816231627 hasConcept C111670793 @default.
- W2816231627 hasConcept C113196181 @default.
- W2816231627 hasConcept C119128265 @default.
- W2816231627 hasConcept C123460561 @default.
- W2816231627 hasConcept C133033854 @default.
- W2816231627 hasConcept C139369640 @default.
- W2816231627 hasConcept C147789679 @default.
- W2816231627 hasConcept C17525397 @default.
- W2816231627 hasConcept C179998833 @default.
- W2816231627 hasConcept C185592680 @default.
- W2816231627 hasConcept C2900643 @default.
- W2816231627 hasConcept C43617362 @default.
- W2816231627 hasConcept C52859227 @default.
- W2816231627 hasConceptScore W2816231627C111670793 @default.
- W2816231627 hasConceptScore W2816231627C113196181 @default.
- W2816231627 hasConceptScore W2816231627C119128265 @default.
- W2816231627 hasConceptScore W2816231627C123460561 @default.
- W2816231627 hasConceptScore W2816231627C133033854 @default.
- W2816231627 hasConceptScore W2816231627C139369640 @default.
- W2816231627 hasConceptScore W2816231627C147789679 @default.
- W2816231627 hasConceptScore W2816231627C17525397 @default.
- W2816231627 hasConceptScore W2816231627C179998833 @default.
- W2816231627 hasConceptScore W2816231627C185592680 @default.
- W2816231627 hasConceptScore W2816231627C2900643 @default.
- W2816231627 hasConceptScore W2816231627C43617362 @default.
- W2816231627 hasConceptScore W2816231627C52859227 @default.
- W2816231627 hasIssue "2" @default.
- W2816231627 hasOpenAccess W2816231627 @default.
- W2816231627 hasRelatedWork W1749327014 @default.
- W2816231627 hasRelatedWork W1967686387 @default.
- W2816231627 hasRelatedWork W1994782456 @default.
- W2816231627 hasRelatedWork W1999072552 @default.
- W2816231627 hasRelatedWork W2015788902 @default.
- W2816231627 hasRelatedWork W2018138575 @default.
- W2816231627 hasRelatedWork W2048977353 @default.
- W2816231627 hasRelatedWork W2061594148 @default.
- W2816231627 hasRelatedWork W2066679164 @default.
- W2816231627 hasRelatedWork W2077990423 @default.
- W2816231627 hasRelatedWork W2078549853 @default.
- W2816231627 hasRelatedWork W2146797098 @default.
- W2816231627 hasRelatedWork W2155543607 @default.
- W2816231627 hasRelatedWork W2167494088 @default.
- W2816231627 hasRelatedWork W2314055291 @default.
- W2816231627 hasRelatedWork W2811112029 @default.
- W2816231627 hasRelatedWork W2999210161 @default.
- W2816231627 hasRelatedWork W904769157 @default.
- W2816231627 hasRelatedWork W2978423925 @default.
- W2816231627 hasRelatedWork W3023918792 @default.
- W2816231627 hasVolume "100" @default.
- W2816231627 isParatext "false" @default.
- W2816231627 isRetracted "false" @default.
- W2816231627 magId "2816231627" @default.
- W2816231627 workType "article" @default.