Determination of Thiocyanate by Kinetic Spectrophotometric Flow Injection Analysis
Figure 4
Effect of temperature on the sensitivity. Conditions: 0.5 M hydrochloric acid, 2 × 10−5 M janus green, 0.4 M bromate, 0.1 μg mL−1 thiocyanate, sample loop volume of 200 μL, flow rate of 18 mL/h for each channel, three reaction coil lengths from RC1 to RC3, 40 cm, 40 cm, and 150 cm, respectively.
