|
|
“Sample contamination from a commercial grinding unit”. Van Grieken R, Van de Velde R, Robberecht H, Analytica chimica acta 118, 137 (1980). http://doi.org/10.1016/S0003-2670(01)93724-9
Abstract: The contamination of ground samples by a commercially available Lovibond McCrone Micronizing Mill is discussed. Tracer and weighing experiments showed that abrasion of corundum grinding elements was important, introducing 620 mg of abrasion products per minute of wet grinding. Agate grinding elements were abraded at ⩽6 mg min-1. The abrasion products and grinding elements were analyzed by x-ray fluorescence, spark-source mass spectrometry and neutron activation analysis. Contamination in trace element analysis of geological materials is likely to be negligible for agate grinding elements and, except for a few transition metals, also for corundum grinding elements. Contamination of typical biological samples is significant for a few elements even when agate elements are used, and is absolutely prohibitive for trace analysis when corundum elements are used.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0003-2670(01)93724-9
|
|
|
|
“Selenium in environmental waters : determination, speciation and concentration levels”. Robberecht H, Van Grieken R, Talanta : the international journal of pure and applied analytical chemistry 29, 823 (1982). http://doi.org/10.1016/0039-9140(82)80252-X
Abstract: This article reviews the different methods used for the determination of selenium species in all types of environmental waters. Basic difficulties are discussed and the efficiency of the methods is explained in view of the sub-μg/1. concentration levels. Special attention is paid to preconcentration steps. Published data on speciation and concentration levels in various water samples are critically reviewed.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/0039-9140(82)80252-X
|
|
|
|
“Simultaneous determination of chromium and silicon in steel by 14-mev neutron activation analysis”. Vandecasteele C, Van Grieken R, Hoste J, Analytica chimica acta 72, 31 (1974). http://doi.org/10.1016/S0003-2670(01)82945-7
Abstract: Chromium and silicon are determined simultaneously in steel by 14-MeV neutron activation analysis. The activities of 52V(Eγ=1.43 MeV,TView the MathML source=3.76 min) from 52Cr(n,p)52V and 28Al (Eγ=1.78 MeV; TView the MathML source=2.24 min) from 28Si(n,p)28Al are evaluated by mixed γ-ray spectrometry. The influence of manganese and phosphorus, the main interfering elements, is negligible for most stainless steels. The count rate should be limited, to avoid 52V pulse pile-up effects interfering in the 28Al energy region. Precisions in the 2-10% range are reached, depending on the concentrations, for a 10-min analysis time. Results for a series of steel samples are compared with industrial analyses.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0003-2670(01)82945-7
|
|
|
|
“Single particle analysis of suspended matter in the Makasar Strait and Flores Sea with particular reference to tin-bearing particles”. Dekov VM, van Put A, Eisma D, Van Grieken R, Journal of sea research 41, 35 (1999). http://doi.org/10.1016/S1385-1101(98)00035-5
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S1385-1101(98)00035-5
|
|
|
|
“Single particle and inorganic characterization of rainwater collected above the North Sea”. Jambers W, Dekov V, Van Grieken R, The science of the total environment 256, 133 (2000). http://doi.org/10.1016/S0048-9697(00)00477-0
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0048-9697(00)00477-0
|
|
|
|
“Single particle characterisation of inorganic and organic North Sea suspension”. Jambers W, Dekov V, Van Grieken R, Marine chemistry 67, 17 (1999). http://doi.org/10.1016/S0304-4203(99)00046-8
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0304-4203(99)00046-8
|
|
|
|
“Soil analysis by thin-film energy-dispersive X-ray fluorescence”. Van Grieken R, Van 't dack L, Costa Dantas C, Da Silveira Dantas H, Analytica chimica acta 108, 93 (1979). http://doi.org/10.1016/S0003-2670(01)93044-2
Abstract: Energy-dispersive x-ray fluorescence is advantageous for trace analysis of soils present as thin films. A target thickness of about 2 mg cm-2 provides a compromise between optimal sensitivity and minimal absorption effect or optimal accuracy. Sample preparation involves only suspending the finely ground soil in water and drying this suspension on a thin mylar foil glued on a ring that fits into the x.r.f. spectrometer. The effective sample weight present in the exciting beam area is computed from the scatter peaks, a method that cancels out target heterogeneity problems. High accuracy is demonstrated for many elements in reference soil and rock materials; a precision around 5% and a detection limit around 10 ppm can be achieved. As an illustration, results for 16 trace elements and preliminary interpretation are given for a series of pedologically important soil samples from Brasil.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0003-2670(01)93044-2
|
|
|
|
“Spark-source mass-spectrometric sensitivity factors for elements in a graphite matrix”. Vanderborght B, Van Grieken R, Talanta : the international journal of pure and applied analytical chemistry 26, 461 (1979). http://doi.org/10.1016/0039-9140(79)80111-3
Abstract: Relative sensitivity factors for determination of 41 elements by spark-source mass-spectrometry have been measured. The samples were pressed into graphite electrodes and ionized with a radiofrequency spark. The mass spectra were recorded on a photoplate and the resulting data processed by a computer. Indium was used as standard and the relative sensitivity factors for both singly- and doubly-charged ions were determined with reference to the singly-charged indium ion, with an overall error of 30%. The mean analysis precision was 16%.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/0039-9140(79)80111-3
|
|
|
|
“Study of inorganic ammonium compounds in individual marine aerosol particles by laser microprobe mass spectrometry”. Otten P, Bruynseels F, Van Grieken R, Analytica chimica acta 195, 117 (1987). http://doi.org/10.1016/S0003-2670(00)85654-8
Abstract: Ammonia is important in the atmosphere because it neutralizes acidic species. The relative importance of different inorganic ammonium compounds (chloride, nitrate and sulfate) in marine air chemistry was studied by single-particle characterization with the laser microprobe mass analyser. Standard aerosols were generated as a reference for compound identification, based on the fingerprint spectra obtained, and calculation of the relative sensitivity achieved for different ions in a marine aerosol matrix. The relative sensitivity for ammonium was low. Aerosol samples were collected in the Southern Bight of the North Sea under different meteorological conditions and examined for their ammonium compounds. Samples collected during an inversion period with continental influences showed a much higher content in all particles than samples collected under different meteorological conditions, where ammonium was mostly detected in the submicrometer particle-size range.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0003-2670(00)85654-8
|
|
|
|
“A study of the weathering of an historic building”. Leysen L, Roekens E, Komy Z, Van Grieken R, Analytica chimica acta 195, 247 (1987). http://doi.org/10.1016/S0003-2670(00)85666-4
Abstract: Various bulk and surface analytical techniques were used to study the chemical deterioration of the 13th-to-15th century limestone cathedral in Mechelen, Belgium. The weathering crust on the walls was found to be rich in sulfate, regardless of the geographic orientation. Nitrate and chloride were only detected in minor amounts in the crust and run-off samples. Attack by gaseous sulfur compounds seems to play a dominant role in the stone deterioration mechanism. Electron microprobe analysis showed predominantly bar-shaped gypsum crystals in the crust, and laser microprobe mass spectrometry showed that carbon seems to be responsible for the blackness of most crust samples. Automated electron microprobe analysis also indicated significant differences in the analytical composition of suspensions in run-off water and in rain-water.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S0003-2670(00)85666-4
|
|
|
|
“Studying aerosol samples by non-linear mapping of electron probe microanalysis data”. Treiger B, van Malderen H, Bondarenko I, van Espen P, Van Grieken R, Analytica chimica acta 284, 119 (1993). http://doi.org/10.1016/0003-2670(93)80014-C
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3)
DOI: 10.1016/0003-2670(93)80014-C
|
|
|
|
“Water analysis by spark-source mass-spectrometry after preconcentration on activated carbon”. Vanderborght BM, Van Grieken RE, Talanta : the international journal of pure and applied analytical chemistry 27, 417 (1980). http://doi.org/10.1016/0039-9140(80)80225-6
Abstract: For trace analyses of environmental waters, spark-source mass-spectrometry has been combined with a preconcentration procedure involving chelation of the dissolved trace elements with oxine and subsequent adsorption of the oxinates and naturally occurring organic and colloidal metal species onto activated carbon. The activated carbon is filtered off and ashed at low temperature. The residue is dissolved, an internal standard and pure graphite are added and, after drying, the electrodes are prepared. The photographically recorded mass spectrum is evaluated by a suitable computer routine. The error of the procedure is around 30%. While this preconcentration and analysis procedure is capable of measuring about 40 elements quantitatively, in practice 1025 trace elements are determined simultaneously above the 0.1-μg/l. detection limit, as is illustrated by analyses of drinking water, surface and ground water samples. Although a sophisticated technique, SSMS can be considered for regular panoramic survey analyses.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/0039-9140(80)80225-6
|
|
|
|
“Weathering of dolomitic sandstone under ambient conditions”. Sweevers H, Delalieux F, Van Grieken R, Atmospheric environment : an international journal 32, 733 (1998). http://doi.org/10.1016/S1352-2310(97)00341-5
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1016/S1352-2310(97)00341-5
|
|
|
|
“Ab initio spectroscopy and thermochemistry of the BN molecule”. Martin JML, François JP, Gijbels R, Zeitschrift für Physik : D : atoms, molecules and clusters 21, 47 (1991)
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Times cited: 17
|
|
|
|
“L'analyse des eaux géothermales par spectrométrie de masse à, étincelles”. Vandelannoote R, Blommaert W, van Grieken R, Gijbels R, Spectra 2000: la revue de l'instrumentation 53, 66 (1979)
Keywords: A3 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
|
|
|
|
“Analysis of thermal waters by ICP-MS”. Veldeman E, Van 't dack L, Gijbels R, Campbell M, Vanhaecke F, Vanhoe H, Vandecasteele C The Royal Society of Chemistry, Cambridge, page 25 (1991).
Keywords: H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
|
|
|
|
Gijbels R, van Grieken R (1977) Application of analytical methods for trace elements in geothermal waters : part 1 : Amélie-les-Bains (Eastern Pyrenees). S.l
Keywords: MA3 Book as author; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
|
|
|
|
Gijbels R, van Grieken R, Blommaert W, Van 't dack L, van Espen P, Nullens H, Saelens R (1983) Application of analytical methods for trace elements in geothermal waters : part 2 : Plombières, Bains-les-Bains, Bourbonne (Vosges). S.l
Keywords: MA3 Book as author; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Chemometrics (Mitac 3)
|
|
|
|
“Application of neural networks in image analysis: the classification of geometrical shapes”. Geuens I, Nys B, Gijbels R, Jacob W, CC-AI: the journal for the integrated study of artificial intelligence, cognitive science and applied epistemology 10, 61 (1993)
Keywords: A3 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
|
|
|
|
“Application of trace element analysis to geothermal waters”. Gijbels R, van Grieken R, Blommaert W, Vandelannoote R, Van 't dack L, , 429 (1977)
Keywords: P3 Proceeding; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
|
|
|
|
“Atomic mass spectrometry”. Gijbels R, Oksenoid KG Academic Press, London, page 2839 (1995).
Keywords: H3 Book chapter; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
|
|
|
|
“Atomic resolution of interfaces in ceramic-superconductors”. Van Tendeloo G, Krekels T, Amelinckx S, Hervieu M, Raveau B, Greaves C, , 35 (1995)
Keywords: P3 Proceeding; Electron microscopy for materials research (EMAT)
|
|
|
|
“Binding of remote and spatial separated D- centers in double barrier resonant tunneling semiconductor devices”. Marmorkos IK, Schweigert VA, Peeters FM, Lok JGS, , 2769 (1996)
Keywords: P3 Proceeding; Condensed Matter Theory (CMT)
|
|
|
|
“Cation and anion disorder in HbBa2Can-1CunO2n+2+\delta”. Marezio M, Alexandre ET, Bordet P, Capponi J-J, Chaillout C, Kopnin EM, Loureiro SM, Radaelli PG, Van Tendeloo G, Journal of superconductivity 8 (1995)
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 4
|
|
|
|
“Cation ordering in Tl- and Hg-based superconducting materials”. Van Tendeloo G, De Meulenaere P, Hervieu M, Letouze F, Martin C, (1996)
Keywords: P3 Proceeding; Engineering sciences. Technology; Electron microscopy for materials research (EMAT)
|
|
|
|
“Characteristic mosaic texture related to orderingin AuCu-9at.%Ag pseudobinary alloy”. Yasuda K, Hisatsune K, Udoh K, Tanaka Y, Van Tendeloo G, van Landuyt J, Dentistry in Japan 29, 91 (1992)
Keywords: A3 Journal article; Electron microscopy for materials research (EMAT)
|
|
|
|
“Characterization of complex silver halide photographic systems by means of analytical electron microscopy”. Oleshko V, Gijbels R, Jacob W, Alfimov M, Microbeam analysis 4, 1 (1995)
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Times cited: 9
|
|
|
|
“Characterization of complex silver halide photographic systems by means of analytical electron microscopy”. Oleshko V, Gijbels R, Jacob W, Alfimov M, Microbeam analysis 3, 1 (1994)
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
|
|
|
|
“Characterization of crystal defects and analysis of iodide distribution in mixed tabular silver halide grains by conventional transmission electron microscopy, X-ray diffractometry and back-scattered electron imaging”. Goessens C, Schryvers D, van Landuyt J, Amelinckx S, Geuens I, Gijbels R, Jacob W, Verbeeck A, de Keyzer R, (1991)
Keywords: P3 Proceeding; Electron microscopy for materials research (EMAT); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
|
|
|
|
“Charged-impurity correlations in a δ-doped quantum barrier”. Koenraad PM, Shi JM, van de Stadt AFW, Smets A, Perenboom JAAJ, Peeters FM, Devreese JT, Wolter JH, , 2351 (1996)
Keywords: P3 Proceeding; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
|
|
