Table 6. Sen's slope analysis data for correlation between reaction time (min) and core size (nm), hydrodynamic diameter (nm), zeta-potential (mV) and polydispersity index (PDI).

Parameter	Core size (nm)	Hydrodynamic diameter (nm)	Zeta potential (mV)	Polydispersity index (PDI)
Sen's slope	−0.047	0.034	0.006	0.000
Lower bound (95%)	−0.174	−0.277	−0.041	0.001
Upper bound (95%)	0.199	0.458	0.110	0.003