Steady-state behavior parameter sensitivities

Further studies examining time-variable behavior of PCBs in the Twelve Mile Creek-Lake Hartwell system and sensitivity of model calculations to various system parameters are presently being performed. The steady-state modeling results presented in this chapter, however, provide a reasonable base for an initial assessment of the fate of PCBs in the Twelve Mile Creek-Lake Hartwell system. The cumulative removals of PCBs from the system by volatilization and burial are shown as percents of the total PCB... 

The voltammetric behavior of the first-order catalytic process in DDPV for different values of the kinetic parameter Zi(= ( 1 + V) Ti) at spherical and disc electrodes with radius ranging from 1 to 100 pm can be seen in Fig. 4.25. For this mechanism, the criterion for the attainment of a kinetic steady state is %2 > 1-5 (Eq. 4.232) [73-75]. In both transient and stationary cases, the response is peakshaped and increases with j2. h is important to highlight that the DDPV response loses its sensitivity toward the kinetics of the chemical step as the electrode size decreases (compare the curves in Fig. 4.25a, c). For the smallest electrode (rd rs 1 pm, Fig. 4.25c), only small differences in the peak current can be observed in all the range of constants considered. Thus, the rate constants that can... 

---