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Finnigan mat 262 tims.
The thermal ionization mass spectrometer is used for high precision isotope ratio measurements.
Finnigan mat 262v tims.
Evolving goals of safeguards environmental sampling of uranium and plutonium demand decreased sample sizes.
Finnigan mat 262 tims.
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.
Purifications of nd and sm were carried out using the methods described by ref.
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Finnigan mat 262v tims.
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.
The thermal ionization mass spectrometer is used for high precision isotope ratio measurements.
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.
The tims uses 8 faraday collectors and a sem ion counting system and is used in isotope geochemistry and geochronology applications.
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.
Time for a sample of 10 ng ph nbs 981 on a re filament using a finnigan mat 262 tims.
Mass resolved ion beams.
A shows the ion beam intensity when 1 ri of the new colloidal silicic acid emitter is used.
Thermal ionization mass spectrometry tims is used for very precise isotope ratio measurements.
Purified samples are thermally ionized by passing a current through a thin metal filament or filaments.
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57 and their abundances were determined by tims finnigan mat 262 and thermo finnigan triton for nd and by the mc.
The values of filament temperature and the respective heating current are given in the diagrams.
And b shows the ion beam.
Thermal ionization mass spectrometry tims is used for very precise isotope ratio measurements.
Solution standards of srm 987 for sr and ames for nd were measured during the same tims runs as the samples.
Purified samples are thermally ionized by passing a current through a thin metal filament or filaments.
Finnigan mat 262 rpq tims system thermo scientific year of introduction.
