Research Article
Spectrophotometric Determination of Bromhexine HCl in Pure and Pharmaceutical Forms
Table 1
Optical characteristics, precision, and accuracy data.
| | Parameters | BTB (A) | BPB (B) | BCG (C) | I2 (D) | KMnO4 (E) |
| | (nm) | 412.00 | 414.00 | 415.00 | 366.00 | 610.00 | | Beer’s law limit (μg mL−1) | 2.5–25 | 2.5–25 | 2.0–25 | 5–50 | 12.5–150 | | Sandell’s sensitivity (μg cm−2) | 0.03 | 0.05 | 0.01 | 0.02 | 0.35 | | Slope (specific absorptivity), | 0.03 | 0.02 | 0.01 | 0.06 | 0.05 | | Intercept () | 0.16 | 0.05 | 0.06 | 0.01 | 0.03 | | Correlation coefficient () | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | | Standard deviation of intercepts (% ) | 0.02 | 0.01 | 0.01 | 0.06 | 0.01 | | Limit of detection, μg mL−1 | 2.12 | 1.65 | 2.58 | 3.53 | 11.30 | | Limit of quantification, μg mL−1 | 6.37 | 4.95 | 7.74 | 10.60 | 34.10 | | Regression equation | | | | | |
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, where is the concentration in μg mL−1.
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