Anions nonpolarizable

The interfacial potential drop at the nonpolarizable ITIES was controlled by varying the concentration of either the cation or the anion of the ionic liquid in the aqueous phase. The kinetics of interfacial ET followed the Butler-Volmer equation, and the measured bimolecular rate constant was much larger than that obtained at the water-1,2-dichloroethane interface. In the second publication, Laforge et al. [112] developed a new method for separating the contributions from the interfacial ET reaction and solute partitioning to the SECM feedback. 

The simulations with both models demonstrated the existence of an inhomogeneous interfacial structure normal to the surface layer. In the outmost surface layer, the cation is likely to lie on the surface with the imidazolium ring parallel to the interface, while there is a second region with enhanced density from that in the bulk where the cation tended to be perpendicular to the surface. It was found that the cation is likely to be segregated at the IL surface for the polarizable model, while for the nonpolarizable model, the anion was found to be more likely exhibiting such behavior. The surface tension obtained from the polarizable model was much smaller (>28%) than that obtained from the nonpolarizable model, in better agreement with extrapolated experiments [107],... 

In a simulation of 34,284 atoms in a periodic box employing a nonpolarizable force field, Liu et al. studied the IL [C4mim][N03]/rutile (110) interface. Anions were found to segregate and tightly bind on the surface. The orientation of the cations was modulated by the absorbed anions [109],... 

Conductometric MEMS Biosensors Electrolytic conductance is a non-faradaic process that can give useful chemical information. Electrolytic conductance originates from the transport of anions to the anode and cations to the cathode. In order to complete the current path, electrons are transferred at the electrode surface to and from the ions. The conductance of an electrol3Te is measured in a conductance cell consisting of two identical nonpolarizable electrodes. To prevent polarization, an AC potential is applied to these electrodes and the AC current is measured [8]. 

Figure 3.32 Separation of polarizabie and nonpolarizable anions on lonPac AS9-SC. Eluent 3 mmol/L Na2C03 flow rate 2 ml7min detection suppressed conductivity injection volume 25 pL peaks 2 mg/L fluoride (1),...

The simultaneous separation of polarizable and nonpolarizable anions has already been discussed (see lonPac AS9-SC). 

Figure 3.72 Isocratic analysis of nonpolariz-able and polarizable inorganic anions on lonPac AS25. Separator column lonPac AS25 column dimensions 250 mm x 4 mm i.d. column temperature 30 °C eluent 37 mmol/L KOH (EG) flow rate 1 mlVmin detection suppressed conductivity injection volume 25 pL ...

Figure 3.94 Capacity gradient elution of nonpolarizable and polarizable anions on lonPac Cryptand A1. Column temperature 35 °C eluents (A) 10 mmol/L NaOH, (B)...

Figure 3.128 Separation of polarizable and nonpolarizable inorganic anions on a poly (styrene-co-divinylbenzene)-based stationary phase by adding p-cyanophenol. Separator column lonPac AS4A eluent 1.7 mmol/L NaHCOa + 1.8 mmol/L Na2C03 + 100 mg/L...

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