Figure 4From: A new and sensitive reaction rate method for spectrophotometric determination of trace amounts of thiourea in different water samples based on an induction period Effect of KBr concentration. Conditions: TU 0.5.0 μg mL−1; H2SO4, 0.030 M; MCP, 5.2 × 10−5 M; KBrO3, 3.0 × 10−3 and temperature of 25°C.Back to article page