def calc_total_capacitance(eps_fluid, lamb, Cdl, Cd, Cbuff):
    """
    Total capacitance from Debye layer, dielectric layer, and buffer
    """
    beta = Cbuff/Cd
    delta = Cdl/Cd
    total_capacitance = (eps_fluid/lamb)*((1+beta/delta)/(1+delta+beta))
    return total_capacitance, beta, delta