Full use-format

the full use-format contains the current curve and a full description of the experimental parameters. The latter must be written to the file in exactly the same form as on the Property Page: Simulation Parameters:
 

DigiElch_SW_Header

experimental parameters:

key_word_1: Value_1

key_word_2: Value_2

.

.
species parameters:

[name of species_1] (M/l): Canal_1

[name of species_2] (M/l): Canal_2

.

.

experimental SW-data:
number of E (V), I1 (A) | I2 (A) couples : N

E1_1 , I1_1

E2_1 , I2_1

E1_2 , I1_2

E2_2 , I2_2

.

.

E1_N , I1_N

E2_N , I2_N
 

•DigiElch_SW_Header:
source program: DigiElch for Windows
program version: 3.0
file type: SW

•key_word_i and Value_i
key word and value referring to the i-th parameter. The value must be in point-format and separated from the key word by a colon. The keywords and parameter values are identical to those shown on the Property Page: Simulation Parameters. For example,
 
Pre-Equilibrium: enabled
Diffusion: Semi-Infinite 1D
Geometry: Planar
Area (cm²): 0.05
Ru (Ohm): 0
Cdl (F): 0
Temp. (K): 298.2
C1 (F/V): 0
C2 (F/V²): 0
C3 (F/V³): 0
C4 (F/V²V²): 0
Potential steps (V): 0.001
Estart (V):-0.75
Segment: 1
Eend (V): -1.55
f (Hz): 100
Segment: 2
Eend (V): -0.75
f (Hz): 100
 

•name of species_i and Canal_i
the name of the i-th species in brackets and the analytical concentration in point-format. For example
 
[NiL] (M/l): 0.001
[NiL-] (M/l): 0
[DP] (M/l): 0.1
[NiLDP] (M/l): 0
[NiLDP-] (M/l): 0

•N
the number of data couples

oE1_i and I1_i
numbers (separated by comma) representing the Voltage-Current-couple associated with the i-th forward step
 

oE2_i and I2_i
numbers (separated by comma) representing the Voltage-Current-couple associated with the i-th backward step
 

E1_i and E2_i are the potential values to which the current points, I1_i and I2_i, refer.

Minimum use-format

Data measured with third-party electrochemical instruments are usually exported in file formats which differ from instrument to instrument. The minimum use-format enables the user to produce an importable use-file with a minimum of effort provided the experimental data files satisfy the following prerequisites:
 

•The experimental current curve is available in ASCII-format.

•The current points refer to equal time steps. Only small deviations from equally spaced time intervals do not matter.

The minimum use-format is as follows:
 

DigiElch_SW_Header
 

number of E (V), I1 (A) | I2 (A) couples : N

E1_1 , I1_1

E2_1 , I2_1

E1_2 , I1_2

E2_2 , I2_2

.

.

E1_N , I1_N

E2_N , I2_N

oE1_i and I1_i
numbers  (separated by comma) representing the Voltage-Current-couple associated with the i-th forward step (see above picture) .
 

oE2_i and I2_i
numbers  (separated by comma) representing the Voltage-Current-couple associated with the i-th backward step(see above picture) .
 

Files in minimum use-format do not contain any information about experimental parameters such as scan rate, electrode surface, electrode geometry or species concentrations. It is therefore not possible for the fitting procedure to recognize to which parameter combination a particular experimental curve refers. Consequently, such files are useful only for viewing experimental current curves. Apply the Edit/Modify command  to add the experimental parameters to each file.