Table 1
Operating parameters for SWSV determination of manganese at the
GCe
Parameter CSV
(pH 9.0)
CSV
(pH 4.0)
ASV
(pH 4.0)
Mode OSWSV OSWSV OSWSV
Initial E (mV) 850 1200 ÿ1200
Final E( mV) ÿ1400 ÿ1300 850
S.W.Amp (mV) 100 105 25
Frequency (Hz) 50 50 15
Step E (mV) 4 4 4
Deposit time (s) Var. Var. Var.
Quiet T (s) 50 20 10
Stirring rate (rpm) 1 1 1
Sensitivity (A/V) Var. Var. Var.