[N 1 ] r–1
number of particles of mobility m E1 in stage ‘n’ at transfer or step
(r – 1)
N 1
number of bioparticles with mobility m 1E [N 1 = x 1 (N)]
N 2
number of bioparticles with mobility m 2E [N 2 = x 2 (N)]
Nu
Nusselt number
ORSEP
organic separator
p
parameter in Eq. (27) [p = E/(E + 1)]
Pd
palladium
6-PGDH 6-phosphogluconate dehydrogenase
PEG
poly(ethylene glycol)
PPE
phase partition experiment
PTK
phophofructokinase
Pr
Prandtl number
Q
heat to be removed from the system (kW)
r
t r a n s f e r o r s t e p n u m b e r
r c
radius of chamber (m)
R
phase volume ratio (R = L/H)
Ra
Rayleigh number
Ra c
critical Rayleigh number
Re
Reynolds number
RME
reverse micellar extraction
t
time of application of electric field(s)
u m
magnetic energy density
U m
magnetostatic potential energy
v
drop velocity (m s –1 )
v cell
velocity of the cell (m s –1 )
v E
drop velocity due to electric field (m s –1 )
v medium
velocity (circulation) of the medium (m s –1 )
v p
velocity and can be assumed to be equal to Dz/Dt (m s –1 )
V b
volume of the lower cavity half (m 3 )
V cell
volume of the cell (m 3 )
V p
particle volume (m 3 )
V
volume of the chamber (m 3 )
V *
mis-alignment volume (m 3 )
W
power density (kW m –3 )
x s
mass concentration of the solute in the light phase (kg m –3 )
x 1
fraction of type 1 particles
y s
mass concentration of the solute in the heavy phase (kg m –3 )
y
distance of electrophoretic migration by bioparticles during the
electric field application of time t
z
distance of unidimensional motion (m)
b
coefficient of thermal expansion (°C –1 )
l
function of the conductivities of the dispersed or droplet phase and
continuous phase (Eq. 26)
m
chemical potential
m 0
magnetic permeability of free space
m E
electrophoretic mobility of bioparticle (m 2 V –1 s –1 )
142
K.S.M.S. Raghavarao et al.