Elemental Analyzer Mass Spectrometer (EA-MS)

   The elemental analyzer mass spectrometer measures the isotope ratios of H, N, C and S contained in sediments and other samples by thermally decomposing organic matter at a high temperature (850 °C) and converting the constituent elements into H2O, N2, CO2 and SO2 through oxidization, followed by separation based on on-line gas chromatography.

Isotope Ratio Mass Spectrometer (IR-MS)

   The isotope ratio mass spectrometer analyzes the sample gas after ionizing it through irradiation with thermal electrons. It is capable of carrying out isotope ratio measurement for C, O, H, N and S with high precision more or less automatically.

Thermal Ionization Mass Spectrometer (TIMS)

   The thermal ionization mass spectrometer analyzes the sample after ionizing it through application onto a metal filament and heating with an electric current. Equipped with multiple detectors, it is capable of carrying out isotope ratio measurement for B, Sr, Nd and other elements with high precision.

Quadrupole Inductively Coupled Plasma Mass Spectrometer (ICP-MS)

   The quadrupole inductively coupled plasma mass spectrometer analyzes the sample after ionizing it through decomposition/dissolution into a strong acid, such as nitric acid, and injection into plasma. It is capable of a simultaneous analysis of multiple elements with high precision.

Double-Focusing High Resolution ICP Multi-Collector Mass Spectrometer (ICP-MC-MS)

   Compared to the quadrupole ICP-MS, the double-focusing high resolution ICP multi-collector mass spectrometer has considerably better resolution and sensitivity. Like TIMS, it is equipped with multiple detectors and capable of simultaneous measurement of multiple isotopes. Besides, it is suited to high-precision isotope analysis of Fe, Mo, Hf and other elements not amenable to ionization under TIMS.

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