Results of robustness study of FVS.

Table 5: Results of robustness study of FVS.

Parameter variation	Recovery % ± SD^a
Parameter variation	Initial rate	Fixed time
No Change	100.75 ± 0.38	100.33 ± 0.32
MBTH (0.01 M) volume (± 0.1 mL)
0.90 mL	98.90 ± 0.23	98.96 ± 0.24
1.10 mL	99.05 ± 0.16	99.32 ± 0.21
Ce(SO₄)₂ (1% w/v) volume (± 0.1 mL)
0.90 mL	98.46 ± 0.26	98.60 ± 0.14
1.10 mL	98.27 ± 0.14	98.30 ± 0.12
Measurement time (± 5.0 min)
10 min	99.49 ± 0.13	99.58 ± 0.09
20 min	99.89 ± 0.15	100.03 ± 0.11
^aAverage of five determinations.