CPC G01N 27/76 (2013.01) [A23L 27/72 (2016.08); A23P 10/30 (2016.08); G01N 15/1031 (2013.01); B01J 13/02 (2013.01); B01J 13/04 (2013.01); G01N 2015/0038 (2013.01); G01N 2015/1027 (2024.01)]  6 Claims 
1. A method for particle analysis, the method comprising:
a first observation step of observing first particles subjected to magnetophoresis;
a first migration velocity measurement step of measuring a magnetophoretic velocity of the first particles based on an observation result in the first observation step;
a first magnetic susceptibility measurement step of measuring a volume magnetic susceptibility of each of the first particles based on a result of measurement in the first migration velocity measurement step;
an encapsulation treatment step of performing an encapsulation treatment so that the first particles encapsulate an encapsulation target component smaller than the first particles;
a second observation step of observing second particles that are the first particles after the encapsulation treatment subjected to magnetophoresis;
a second migration velocity measurement step of measuring a magnetophoretic velocity of the second particles based on an observation result in the second observation step;
a second magnetic susceptibility measurement step of measuring a volume magnetic susceptibility of each of the second particles based on a result of measurement in the second migration velocity measurement step;
a step of analyzing whether or not the encapsulation target component is encapsulated in the second particles based on a result of measurement in the first magnetic susceptibility measurement step and a result of measurement in the second magnetic susceptibility measurement step;
a first zeta potential measurement step of measuring a zeta potential of the first particles;
a second zeta potential measurement step of measuring a zeta potential of the second particles; and
a step of analyzing whether or not the encapsulation target component is encapsulated in the second particles based on a result of measurement in the first zeta potential measurement step and a result of measurement in the second zeta potential measurement step.
