Research Article

Spectroscopic Determination of Fluoride Using Eriochrome Black T (EBT) as a Spectrophotometric Reagent from Groundwater

Figure 4

Effect of reaction time on the determination of fluoride by EBT as a spectrophotometric reagent (conditions: pH = 5.0 and concentration of aluminum and EBT: 5.0 × 10−5 M).