The values of filament temperature and the respective heating current are given in the diagrams.
Finnigan mat 262 tims.
Solution standards of srm 987 for sr and ames for nd were measured during the same tims runs as the samples.
Purifications of nd and sm were carried out using the methods described by ref.
Finnigan mat 262 tims.
A static double collector system in the finnigan mat 262 thermal ionization mass spectrometer tims was used to analyze different amounts of the boric acid standard nbs srm 951 and natural samples.
Evolving goals of safeguards environmental sampling of uranium and plutonium demand decreased sample sizes.
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A finnigan mat 262 thermal ionization mass spectrometer in igg cas was used for rb sr and sm nd isotopic analyses in static mode using faraday cups.
Ion beam intensity of mass 208 vs.
A shows the ion beam intensity when 1 ri of the new colloidal silicic acid emitter is used.
The finnigan mat 253 stable isotope ratio mass spectrometer system delivers the highest precision for the determination of d h 13c 12c 15n 14n 18o 16o 34s 32s from so2 and sf6 28si 29si as well as ar kr and xe isotope ratios.
And b shows the ion beam.
Finnigan mat 262 tims.
Mass resolved ion beams.
Finnigan mat 262 rpq tims system thermo scientific year of introduction.
Finnigan mat 262v tims.
Thermal ionization mass spectrometry tims is used for very precise isotope ratio measurements.
Thermal ionization mass spectrometry tims with samples loaded on metallic filaments for vaporization and ionization before mass analysis has been the mainstay analytical technique for precise isotope ratio.
The thermal ionization mass spectrometer is used for high precision isotope ratio measurements.
The main objectives of the study were to improve precision and accuracy of b isotope measurement and to define the critical minimum amount of b for both standards and natural silicatic samples.
Thermal ionization mass spectrometry tims is used for very precise isotope ratio measurements.
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Purified samples are thermally ionized by passing a current through a thin metal filament or filaments.
The tims uses 8 faraday collectors and a sem ion counting system and is used in isotope geochemistry and geochronology applications.
Time for a sample of 10 ng ph nbs 981 on a re filament using a finnigan mat 262 tims.
57 and their abundances were determined by tims finnigan mat 262 and thermo finnigan triton for nd and by the mc.
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