Research Article

Determination of Thiocyanate by Kinetic Spectrophotometric Flow Injection Analysis

Figure 6

Effect of sample loop volume on the sensitivity. Conditions: 0.5 M hydrochloric acid, 2 × 10−5 M janus green, 0.4 M bromated, 0.1 μg mL−1 thiocyanate, temperature of 40°C, flow rate of 18 mL/h for each channel, three reaction coil lengths from RC1 to RC3, 30 cm, 40 cm, and 150 cm, respectively.
147364.fig.006