TABLE I.

List of the parameters used in the analytical model. Some of the parameters are varied in the experiment, and their specific values are referred to the text.

Parameter		Description	Value	Unit
Magnet	Ms	Residual magnetization	1.05 × 106	A/m
	2xm	Length	3.176	mm
	2ym	Height	3.176	mm
	2zm	Thickness (polar direction)	1.588	mm
	ΔL	Distance between the magnet and the channel edge	1.33	mm
Ferrofluid	φ	Volume fraction of magnetic nanoparticles	1.20% for original
	Md	Saturation moment of magnetic nanoparticles	4.379 × 105	A/m
	D	Mean diameter of magnetic nanoparticles	10	Nm
	η	Dynamic viscosity	1.2 × 10−3 for original	kg/m/s
Diamagnetic particles	2a	Particle diameter	Three sizes used: 2.2, 5, and 10	μm
Microchannel	wc	Channel width	200	μm
	hc	Channel height	70	μm
	Q	Volume flow rate	480	µl/h