[HTT18-P11] Magnesium isotope analysis of environmental samples(II)
Keywords:magnesium isotope, environmental samples, RIHN-Mg
In the measurement by MC-ICP-MS (ThermoScientific Neptune plus, Bremen, Germany), the magnesium isotope values are determined standard-sample-standard bracketing method. All data are presented as delta value deviation from DSM3 which is a standard international material for magnesium isotope, and the average of three measurements was summarized as a result. Since the DSM3 has depleted, a new working standard solution RIHN-Mg tested. The RIHN-Mg value has close to the DSM3 value, it could be replaced after run out of DSM3. To evaluate the confidence of the analysis several reference samples are tested and show good agreement of reported values.