| 摘要 |
Magnetic particles comprising a group shown by the following formula (1): wherein R1 and R2 individually represent a hydroxyl group, a group shown by the following formula (2), or a group shown by the following formula (3), provided that R1 and R2 are not both hydrogen atoms, wherein R3 represents an a linear, branched, or cyclic alkylene group having 2 to 6 carbon atoms or an arylene group, and wherein R4 is a hydrogen atom or an alkyl group.
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