“Use of laser microprobe mass analysis (LAMMA) for localizing multiple elements in soft and hard tissues”. Verbueken AH, van de Vijver FL, Visser WJ, Roels F, Van Grieken R, de Broe ME, Biological trace element research 13, 397 (1987). http://doi.org/10.1007/BF02796651
Abstract: The potential of laser microprobe mass analysis (LAMMA) as a sensitive microanalytical technique was explored in applications relevant to nephrology. Aluminum and associated elements, such as iron, were localized in fresh tissue biopsies obtained from uremic patients treatment by chronic hemodialysis. The LAMMA was applied to serum, liver, bone, and parathyroid glands of such patients. In addition, we used LAMMA to evaluate the specificity and sensitivity of routine histochemistry, in particular on human bone sections stained by the aluminon method. The high, multielemental sensitivity and molecular microprobe potential of LAMMA established important advantages over other microchemical methods forin situ analysis at the micron level in histological sections.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation); Laboratory Experimental Medicine and Pediatrics (LEMP)
DOI: 10.1007/BF02796651
|
“Heavy metals distribution in the sediments of Ganges and Brahmaputra rivers”. Subramanian V, Van Grieken R, Van 't dack L, Environmental geology 9, 93 (1987). http://doi.org/10.1007/BF02449940
Abstract: Bed sediments were collected from the entire region of the Ganges basin and some parts of the Brahmaputra. In addition, selected stations were sampled for suspended sediments as well. The samples were analysed for a number of heavy metals (Fe, Mn, Ni, Cr, Cu, and Zn) by the thin-film energy dispersive X-ray fluorescence technique. There are pronounced temporal and spatial variations in the heavy metals distributions. Suspended sediments are 510 times richer than the bed sediments. None of the tributaries contribute significant heavy metal load, but around urban areas in Yamuna (tributary of Ganges), very high levels due to the distribution from the drainage network are observed. Compared to the Brahmaputra, the distribution and fractionation of heavy metals in the Ganges sediments are more erratic and highly variable. All the metals considered show high correlation among themselves. Given the high flux of suspended sediments from the Himalayan rivers (nearly 20% of the global flux), the worldwide budget for heavy metal transport may need to be suitably revised.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF02449940
|
“Preconcentration and XRF-determination of heavy metals in hair from Sudanese populations”. Eltayeb MAH, Van Grieken RE, Journal of radioanalytical and nuclear chemistry 131, 331 (1989). http://doi.org/10.1007/BF02060598
Abstract: Energy-dispersive X-ray fluorescence analysis was applied for the analysis of hair. The hair samples were digested in a mixture of nitric and perchloric acid and the heavy metals were precipitated with ammonium pyrrolidine dithiocarbamate. The accuracy, precision and recovery of the method for the elements Fe, Ni, Cu, Zn and Pb were evaluated through the analysis of a standard hair sample. The procedure was applied to the analysis of hair from an occupationally exposed group of Sudanese workers and a control group. The hair of the exposed group showed a range of 80550 ppm Fe, 612 ppm Cu, 57190 ppm Zn and 703700 ppm Pb, while that of the control group had a range of 60310 ppm Fe, 722 ppm Cu, 89170 ppm Zn and 317 ppm Pb.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF02060598
|
“Free energy and orientational phase transition in solid C60”. Michel KH, Zeitschrift für Physik: B 88, 71 (1992). http://doi.org/10.1007/BF01573839
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Times cited: 33
DOI: 10.1007/BF01573839
|
“Some examples of electron microscopy studies of microstructures and phase transitions in solids”. Schryvers D, Van Tendeloo G, van Landuyt J, Amelinckx S, Meccanica 30, 433 (1995). http://doi.org/10.1007/BF01557075
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 1.949
Times cited: 1
DOI: 10.1007/BF01557075
|
“High-resolution electron microscopy and electron energy-loss spectroscopy of giant palladium clusters”. Oleshko V, Volkov V, Gijbels R, Jacob W, Vargaftik M, Moiseev I, Van Tendeloo G, Zeitschrift für Physik : D : atoms, molecules and clusters 34, 283 (1995). http://doi.org/10.1007/BF01437574
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT); Electron microscopy for materials research (EMAT)
Times cited: 22
DOI: 10.1007/BF01437574
|
“Free energy and structural phase transitions in mixed crystals: a microscopic derivation”. Theuns T, Michel KH, Zeitschrift für Physik: B 86, 125 (1992). http://doi.org/10.1007/BF01323556
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Times cited: 1
DOI: 10.1007/BF01323556
|
“Crystal field and molecular structure of solid C60”. Lamoen D, Michel KH, Zeitschrift für Physik : B : condensed matter 92, 323 (1993). http://doi.org/10.1007/BF01308749
Abstract: The crystal field in the orientationally disordered phase of C90-fullerite is derived from an intermolecular potential model, which takes into account the geometric difference between double bonds and single bonds. The molecules are modelled as rigid bodies, atoms and single bonds are treated as single interaction centers, while double bonds are described by a distribution of interaction centers along the bond. The crystal field is expanded in terms of cubic rotator functions. The calculated expansion coefficients are compared with empirical values derived from diffraction data. The angular dependence of the crystal field, resulting from an anticlockwise rotation of the molecule around the [111] axis, exhibits an absolute and a secondary minimum at angles of 98-degrees and 38-degrees respectively. The self interaction of the molecule in a deformable lattice is investigated.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Times cited: 25
DOI: 10.1007/BF01308749
|
“Study of aluminium-exposed fish by scanning proton microprobe analysis”. Eeckhaoudt S, Van Grieken RE, Cholewa M, Legge GJF, Microchimica acta 122, 17 (1996). http://doi.org/10.1007/BF01252401
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF01252401
|
“A mass spectrometric study of the dissolution behavior of sanidine”. Adriaens A, Van 't dack L, Adams F, Gijbels R, Microchimica acta 120, 139 (1995). http://doi.org/10.1007/BF01244427
Keywords: A1 Journal article; Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 3.741
Times cited: 1
DOI: 10.1007/BF01244427
|
“Assessment of local analysis by Fourier transform laser microprobe mass spectrometry with external ion source”. van Roy W, Struyf H, Kennis P, Van Vaeck L, Van Grieken R, Andrle C, Microchimica acta 120, 121 (1995). http://doi.org/10.1007/BF01244426
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF01244426
|
“Computer aided processing of laser microprobe mass spectra”. Wouters L, Michaud D, Van Grieken R, Microchimica acta 110, 31 (1993). http://doi.org/10.1007/BF01243982
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF01243982
|
“Electron probe X-ray microanalysis for the assessment of homogeneity of candidate reference materials at the nanogram level”. Hoornaert S, Treiger B, Valkovic V, Van Grieken R, Microchimica acta 128, 207 (1998). http://doi.org/10.1007/BF01243051
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF01243051
|
“Extraction of environmental information from large aerosol data sets through combined application of cluster and factor analysis”. de Bock LA, Treiger B, van der Auwera L, Van Grieken RE, Microchimica acta 128, 191 (1998). http://doi.org/10.1007/BF01243049
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF01243049
|
“Copper oxycarbonates and mercury-based cuprates: promising high Tc superconductors”. Raveau B, Michel C, Hervieu M, Van Tendeloo G, Martin C, Maignan A, Journal of superconductivity 7, 9 (1994). http://doi.org/10.1007/BF00730359
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 6
DOI: 10.1007/BF00730359
|
“Atmospheric concentrations and deposition of heavy metals over the North Sea: a literature review”. Injuk J, Van Grieken R, Journal of atmospheric chemistry 20, 179 (1995). http://doi.org/10.1007/BF00696557
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF00696557
|
“Elemental composition of aircraft-sampled aerosols above the Southern Bight of the North Sea”. Rojas CM, Van Grieken R, Maenhaut W, Water, air and soil pollution 71, 391 (1993). http://doi.org/10.1007/BF00480557
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF00480557
|
“Direct observation of laser-induced crystallization of a-C : H films”. Nistor LC, van Landuyt J, Ralchenko VG, Kononenko TV, Obraztsova ED, Strelnitsky VE, Applied physics A : materials science &, processing 58, 137 (1994). http://doi.org/10.1007/BF00332170
Abstract: The post-growth modification of diamond-like amorphous hydrogenated carbon a-C:H films by laser treatment has been studied by transmission electron microscopy and Raman spectroscopy. a-C:H films grown on Si substrates by benzene decomposition in a rf glow discharge were irradiated with 15 ns pulses of a KrF-excimer laser with fluences in the ran e of E = 50-700 mJ/cm(2). At fluences below 100 mJ/cm(2) an increase in the number of graphitic clusters and in their ordering was evidenced from Raman spectra, while the film structure remained amorphous according to electron microscopy and electron diffraction observations. At higher fluences the appearance of diamond particles of 2-7 nm size, embedded into the lower crystallized graphitic matrix, was observed and simultaneously a progressive growth of graphite nanocrystals with dimensions from 2 nm to 4 nm was deduced from Raman measurements. The maximum thickness of the crystallized surface layer (approximate to 400 nm) and the degree of laser annealing are limited by the film ablation which starts at E > 250 mJ/cm(2). The laser-treated areas lose their chemical inertness. In particular, chemical etching in chromium acid becomes possible, which may be used for patterning the highly inert carbon films.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 73
DOI: 10.1007/BF00332170
|
“Quantitative characterization of individual particle surfaces by fractal analysis of scanning electron microscope images”. van Put A, Vertes A, Wegrzynek D, Treiger B, Van Grieken R, Fresenius' journal of analytical chemistry 350, 440 (1994). http://doi.org/10.1007/BF00321787
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF00321787
|
“Chemistry of precipitation near a limestone building”. Roekens E, Komy Z, Leysen L, Veny P, Van Grieken R, Water, air and soil pollution 38, 273 (1988). http://doi.org/10.1007/BF00280759
Abstract: A total of 82 samples of wet and total deposition were sampled near the limestone cathedral at Mechelen, Belgium, which is presently being affected seriously by air pollution, and at a reference site. Most of these samples were analyzed for 10 major and 7 trace ions in solution and for 15 elements in suspension. It appeared that calcite, released from the building, effectively neutralizes the rainwater in the near vicinity and produces high Ca and bicarbonate concentrations. Heavy metal concentrations are hardly affected by the building.
Keywords: A1 Journal article; AXES (Antwerp X-ray Analysis, Electrochemistry and Speciation)
DOI: 10.1007/BF00280759
|
“The modulated structure in the melilite CA2ZnGe2O7”. van Heurck C, Van Tendeloo G, Amelinckx S, Physics and chemistry of minerals 8, 441 (1992). http://doi.org/10.1007/BF00200967
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 1.538
Times cited: 19
DOI: 10.1007/BF00200967
|
“Monte-Carlo simulation of the coherent backscattering of electrons in a ballistic system”. Janssens KL, Peeters FM, Superlattices and microstructures 25, 615 (1999). http://doi.org/10.1006/spmi.1999.0697
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 2.123
DOI: 10.1006/spmi.1999.0697
|
“Effects of intersubband coupling on Friedel oscillations in quasi-two-dimensional electron systems”. Hai GQ, Peeters FM, Studart N, Marques GE, Superlattices and microstructures 25, 185 (1999). http://doi.org/10.1006/spmi.1998.0635
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 2.123
Times cited: 2
DOI: 10.1006/spmi.1998.0635
|
“DX-center and pressure effects on electronic structure of a δ-doped quantum barrier”. Shi JM, Koenraad PM, van de Stadt AFW, Peeters FM, Devreese JT, Wolter JH, Superlattices and microstructures 23, 83 (1998). http://doi.org/10.1006/spmi.1996.0327
Keywords: A1 Journal article; Condensed Matter Theory (CMT); Theory of quantum systems and complex systems
Impact Factor: 2.123
DOI: 10.1006/spmi.1996.0327
|
“Precision magnetometry on a submicron scale: magnetisation of superconducting quantum dots”. Geim AK, Grigorieva IV, Lok JGS, Maan JC, Dubonos SV, Li XQ, Peeters FM, Nazarov YV, Superlattices and microstructures 23, 151 (1998). http://doi.org/10.1006/spmi.1996.0199
Abstract: We report on magnetisation of individual superconducting particles with size down to 0.1 micron. The non-invasive access to properties of such small objects has become possible using submicron Hall probes which detect a local magnetic field and work effectively as micro-fluxmeters similar to, e.g., SQUIDs but with an effective detection loop of only about a square micron. We have found that the spatial confinement of superconductivity in a small volume gives rise to dramatic changes in thermodynamic properties of mesoscopic superconductors. (C) 1998 Academic Press Limited.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 2.123
Times cited: 12
DOI: 10.1006/spmi.1996.0199
|
“Inter and intrasubband transitions via lo phonons in quantum wires”. Leao SA, Hipolito O, Peeters FM, Superlattices and microstructures 13, 37 (1993). http://doi.org/10.1006/spmi.1993.1007
Abstract: We investigate the effects of the finite confining potential V0 on the absorption and emission scattering rates of electrons interacting with LO phonons for a cylindrical GaAs quantum wire. The emission rates are qualitatively similar to those of the 2D case. The absorption rates on the other hand exhibit two different regimes: 1) for a wire radius smaller than a certain value (80 Å in the case where V0 = 190 meV) the behavior is similar to the 2D and 3D analogues, but 2) for larger radius the absorption rates initially increase with increasing energy, reach a maximum value and then decrease monotonicaly. A complete study is made as a function of wire radius, and electron energy.
Keywords: A1 Journal article; Condensed Matter Theory (CMT)
Impact Factor: 2.097
Times cited: 8
DOI: 10.1006/spmi.1993.1007
|
“Synthesis and characterization of the reduced single-layer manganite Sr2MnO3.5+x”. Gillie LJ, Wright AJ, Hadermann J, Van Tendeloo G, Greaves C, Journal of solid state chemistry 167, 145 (2002). http://doi.org/10.1006/jssc.2002.9636
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 2.299
Times cited: 25
DOI: 10.1006/jssc.2002.9636
|
“High-temperature phase transition in the whitlockite-type phosphate Ca9In(PO4)7”. Morozov VA, Belik AA, Stefanovich SY, Grebenev VV, Lebedev OI, Van Tendeloo G, Lazoryak BI, Journal of solid state chemistry 165, 278 (2002). http://doi.org/10.1006/jssc.2001.9521
Abstract: The double phosphate Ca9In(PO4)(7) was obtained by solid-state reaction and was studied by room and high-temperature Xray powder diffraction, electron diffraction, high-resolution electron microscopy, second-harmonic generation (SHG) technique, differential scanning calorimetry, dielectric and conductivity measurements. The beta-Ca9In(PO4)(7) room-temperature phase is related to the mineral whitlockite and is similar to beta-Ca-3(PO4)(2). It has space group R (3) over barc, with unit cell parameters: a = 10.4008(1) Angstrom, c = 37.272(1) Angstrom, Z = 6. The structure was refined by the Rietveld method (R-wp = 4.69, R-I = 1.81). A reversible first-order beta <----> beta' phase transition of the ferroelectric type with T-c = 902 K is revealed by SHG, differential scanning calorimetry and dielectric measurements. The centrosymmetric beta'-Ca9In(PO4)(7) (973 K) has space group R (3) over barc, a = 10.4611(2) Angstrom, c = 37.874 (1) Angstrom (R-wp = 4.27, R-I = 4.11). Compared to the low-temperature beta-Ca9In(PO4)(7) structure, beta'-Ca9In(PO4)(7) can be described as an orientational disordering of the P1O(4) tetrahedra together with a calcium disordering on the M3 site. (C) 2002 Elsevier Science (USA).
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 2.299
Times cited: 57
DOI: 10.1006/jssc.2001.9521
|
“A new structure type of the ternary sulfide Eu1.3Nb1.9S5”. Khasanova NR, Van Tendeloo G, Lebedev OI, Amelinckx S, Grippa AY, Abakumov AM, Istomin SY, D'yachenko OG, Antipov EV, Journal of solid state chemistry 164, 345 (2002). http://doi.org/10.1006/jssc.2001.9501
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 2.299
Times cited: 2
DOI: 10.1006/jssc.2001.9501
|
“Synthesis and crystal structure of Sr2ScBiO6”. Kazin PE, Abakumov AM, Zaytsev DD, Tretyakov YD, Khasanova NR, Van Tendeloo G, Jansen M, Journal of solid state chemistry 162, 142 (2001). http://doi.org/10.1006/jssc.2001.9375
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 2.299
Times cited: 3
DOI: 10.1006/jssc.2001.9375
|