Difference in BP METHOD AND USP METHOD FOR ETC
BP Method
2 hours sa stimulated gastric fluid
1 hour sa phosphate buffer
Sedimentation Volume
Vs = Vu / Vo
Size of particles – ideal size is
2μm
the amount of the force necessary to redisperse particles, product is subject to shaking for minimum of 10 spm
Redipersability
determines the repulsive forces between particles
Zeta potential