The double-spike (DS) mass bias correction approach was the method of choice for geological samples with <0.5 μg g−1 Mo; both the double-spike and the sample-standard bracketing (SSB) approaches could be applied for samples with >0.5 μg g−1 Mo. This method provided a wide range of applications for most Mo reservoirs in geological processes.
Ion Exchange Chromatography and Mass Bias Correction for Accurate and Precise Zn Isotope Ratio Measurements in Environmental Reference Materials by MC-ICP-MS