6:15 PM - 7:30 PM
[MTT44-P02] Attempt to measure magnetization of single pollen in microgravity condition
Keywords:pollen, fossil, identification, magnetic field gradient, microgravity
In order to quantitatively evaluate the practicability of separating the microfossil pollen from the soil mineral grains, it is necessary to the precise value of magnetic susceptibility of pollens. Therefore, M-H curves were measured for two kinds of pollen, namely plum and hinokia cypress using a vibrating sample magnetometer VSM. The measurements were performed by sweeping static field between -0.5 and 0.5 T at room temperature. In addition to the diamagnetic relationship expected for the organic chemical composition of pollen, features that indicate saturated moments Ms were observed in the M-H curves of plum pollen, while no evidence of Ms was observed for hinokia cypress. The Ms values showed linear correlations with sample mass m for the two samples. The above-mentioned results magnetization results chemical analysis.
 K. Hisayoshi & C. Uyeda, J. Jpn. Soc. Microgravity Appl., (2012).