Instruction Manual

9 Troubleshooting
797 VA Computrace – Software
264
Example:
(For all measurements: Amplitude: 0.02 V , Frequency: 50 Hz)
Highest current range: 10 nA
Lowest current range: 10 nA
Zn/Cd/Pb/Cu-Determination/DIN-Puffer/SqW
Test Si_kap_nullserie
-1.00 -0.80 -0.60 -0.40 -0.20 0.00
U (V)
120n
140n
160n
180n
I (A)
Cd
Cu
Pb
Zn
Highest current range: 1 μA
Lowest current range: 1 μA
Zn/Cd/Pb/Cu-Determination/DIN-Puffer/SqW
Test Si_kap_nullserie
-1.00 -0.80 -0.60 -0.40 -0.20 0.00
U (V)
0
20.0n
40.0n
60.0n
80.0n
100n
120n
I (A)
Cd
Zn
Cu
Pb
Highest current range: 10 μA
Lowest current range: 10 μA
Zn/Cd/Pb/Cu-Determination/DIN-Puffer/SqW
Test Si_kap_nullserie
-1.00 -0.80 -0.60 -0.40 -0.20 0.00
U (V)
0
20.0n
40.0n
60.0n
80.0n
100n
120n
I (A)
Zn
Cu
Pb
Cd
Standard addition curves are not reproducible
With all types of electrodes:
1. Check method parameters (stirring time, etc.).