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_CA_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 CA-data:
number of t(s), I (A) couples: N
T_1 , I_1
T_2 , I_2
.
.
T_N , I_N
•DigiElch_CA_Header:
source program: DigiElch for Windows
program version: 3.0
file type: CA •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
time (s): 1
Segment: 2
Eend (V): -0.75
time (s): 0.5 •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 •T_i and I_i
numbers representing the i-th Time-Current-couple separated by comma 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_CA_Header
experimental CA-data:
number of T(s), I (A) couples: N
T_1 , I_1
T_2 , I_2
.
.
T_N , I_N
oT_i and I_i
numbers representing the i-th Time-Current-couple separated by comma
 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.
|
