Stable Isotope Laboratory



Elemental and isotope compositions of H, C, N, and O from inorganic and organic materials can be analysed in this laboratory.

Flame esmission (FA) and atomic absorption (AA) are useful methods to determine trace amounts of metals (alkali, alkali earth, and transition metals) in geological and environmental materials. Samples were decomposed in chemical laboratories, and diluted to desired concentrations. Digested sample solution is nebulized and introduced into the flame to atomize elements. The emitted radiation power is measured by photodetector in FA mode, while adsorption of optical radiation is measured in AA mode.


Stable Isotopes Laboratory - Spherical Image - RICOH THETA

Stable Isotopes Laboratory
Stable Isotopes Side Room
AAS

Technical Utilities

  • Thermo Scientific MAT253 IRMS
  • TC/EA
  • Flash2000
  • Gas Bench II
  • GC-C
  • Fluorination system
  • Flame emission/atomic absorption spectrometer (Shimadzu AA-6200 equipped with autosampler ASC-6100F)
  • Clean fume food (Yamato CYG120)
  • Dry ovens (Iuchi LDO-450S, Advantec VO-230, AsOne AVO-250N)
  • Centrifugal (AsOne CN-1040N)

Analytical Capabilities

  • Isotope and compositional analyses of H, C, N, and O
  • Flame emission mode: Determination of potassium abundance for K-Ar dating [0.5–1.5 ppm with uncertainty less than 1% (1σ)]
  • Rapid analyses with automated sample exchange (10 samples in an hour)
  • Atomic absorption mode: Determination of trace amounts of Cd in industrial and laboratory wastes

Related Work