Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Hans Vanhoe"'
Het is belangrijk om leerlingen vertrouwd te maken met het discours van een wetenschapsdomein en het grote belang van onderzoeksvaardigheden en probleemoplossend denken. Deze gids wil het abstracte concept ‘onderzoekscompetentie'omzetten naar prakt
Publikováno v:
Talanta. 44:221-230
The determination of Pt in cordierite is subject to strong interference by spectral overlap from HfO(+) ions with all Pt isotopes. Two mathematical correction methods based on the HfO(+)Hf(+) ratio and a method for the chemical separation of Hf based
Publikováno v:
Analytical and Bioanalytical Chemistry. 354:664-667
A description is given of the experimental arrangement for thermospray nebulization of discrete liquid samples (100 microl) into an inductively coupled plasma-mass spectrometer (ICP-MS). The determination of ultratrace levels of platinum in environme
Publikováno v:
Analytica Chimica Acta. 320:1-10
In this paper the coupling of a flow injection system to an inductively coupled plasma mass spectrometer using thermospray nebulization for the determination of platinum is evaluated. The results are compared with pneumatic nebulization. The flow inj
Publikováno v:
Analytica Chimica Acta. 281:401-411
A method for the determination of boron in human serum is described. Serum samples were only treated with 0.14 M HNO 3 (a five-fold dilution). After addition of beryllium as internal standard to correct for matrix effects, samples were introduced wit
Publikováno v:
Talanta. 39:737-742
Careful study of the matrix effect in ICP-MS showed that, in all cases studied, the magnitude of the signal suppression or enhancement depends in a regular way on the mass number. Hence, accurate correction for non-spectral interferences is only poss
Study of the intensity of M+, M2+ and MO+ signals in ICP-MS as a function of instrumental parameters
Publikováno v:
Mikrochimica Acta. 108:41-51
In addition to peaks from singly charged ions (M+), signals from oxide (MO+), hydroxide (MOH+) and doubly charged (M2+) ions, which may lead to spectral overlap interferences, are observed in ICP-MS spectra. Using a VG PlasmaQuad ratios of MO+/M+, MO
Publikováno v:
Analytica Chimica Acta. 244:259-267
Lithium was determined in human serum by inductively coupled plasma mass spectrometry. Sample preparation was kept to the minimum: serum samples were diluted and beryllium was added as internal standard. Special attention was given to the choice of t
Publikováno v:
Analytica Chimica Acta. 244:115-122
A method was developed for the determination of boron in titanium by inductively coupled plasma mass spectrometry (ICP-MS). A commercially available PTFE sample introduction system, leading to the desired low detection limits for boron, was used. The
Publikováno v:
Analytical Letters. 23:1827-1841
The determination of bromine in human serum by inductively coupled plasma-mass spectrometry (ICP-MS) is discussed. Sample preparation was kept as limited as possible: serum samples were only diluted with nitric acid (five- or ten-fold). Indium was ad