III. SEC-C setting and connection

SEC-CT Thin Layer Quartz Glass Spectroelectrochemical cell kit (Pt) (Cat. No. 013716) is used for the spectroelectrochemical measurement.
For the set up special care for the connection of the working electrode is necessary. In the below connection IC clip for printed electrodes (Cat. No. 011840) is connected to the crocodile clip.

Cell preparation for Spectrometry

Set up of the spectrometer and cuvette is showed below with some "hints".
For the SEC-CT Thin Layer Quartz Glass Spectroelectrochemical cell kit (Pt) (Cat. No. 013716) setting, first set the working electrode and counter electrode into the SEC-C Teflon cap, and then fit to the SEC-CT Thin Layer Quartz Glass cell with the sample to be measured, and last set the reference electrode.
Make sure that the SEC-C Pt Gauze working electrode (Cat. No. 011498) is clean. If not, polish with 0.05 um polishing alumina (Cat. No. 012620) by soft touch using cotton swab, and rinse with distilled water.
For the spectrum measurement, when taking the reference and dark spectrum, do not forget to save both spectrum. The saved spectrum can be used for the subsequent measurement.
After take and save the reference and dark spectrum, SEC2020 Spectrometer system is ready for the target sample measurement.

 

Fig. 3-1 For absorbance measurement, as a measurement sample, 2 mM potassium ferrocyanide/1 M KNO3 aqueous solution is used for the reference spectrum.

 

For the differential absorption spectrum measurement, the spectrum of the sample before measurement is taking as a reference spectrum.

Setting of the cell cable

It is not recommended to clip the SEC-C Pt Gauze working electrode directly, because the connection wire is very thin and it will bend easily.
For the set up below IC clip for printed electrodes (Cat. No. 011840) is used between working electrode and cell cable.
For the connection of the working electrode, take attention to do not clip in the insulated side.

Fig. 3-2 The connection must be in the exposed wire of SEC-C Pt Gauze working electrode, without the insulation.

Fig. 3-3 IC clip is used between the crocodile clip of the Model 3325 Bi-Potentiostat cell cable and exposed wire from the SEC-C Pt Gauze working electrode.