Progress of ultra trace determination of technetium using laser resonance ionization mass spectrometry.
Anal Bioanal Chem
; 404(8): 2173-6, 2012 Nov.
Article
in En
| MEDLINE
| ID: mdl-22890539
ABSTRACT
Laser resonance ionization mass spectrometry (RIMS) represents one of the most sensitive and selective techniques for ultra trace determination of long-lived radioisotopes. The isotope (99g)Tc constitutes a specific candidate of high relevance concerning its environmental behavior as well as fundamental research applications. Based on the recent precision determination of the ionization potential of technetium by laser resonance ionization, refined resonant optical excitation pathways have been derived for analytical determination of ultra trace amounts of (99g)Tc by laser mass spectrometric approaches. The state of the art and the specifications of RIMS-based ultra trace determination for (99g)Tc, leading to a level of detection of ε ≈ 3 × 10(-4) atoms (3 µBq), are reported.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Anal Bioanal Chem
Year:
2012
Document type:
Article