|
Parameters |
Reagents |
| BPB |
BTB |
BCG |
BCP |
| Beer's law limits (μg mL–1) |
1.0 - 6.0 |
0.5 - 9.0 |
1.0 – 8.0 |
0.5 - 6.0 |
| Ringbom limits (μg mL–1) |
1.2 – 5.4 |
0.6 – 8.5 |
1.1 – 7.4 |
0.8 – 5.7 |
| Molar absorptivity
(L mol–1 cm–1) x 104 |
10.22 |
6.14 |
6.98 |
8.07 |
| Sandell sensitivity((µg cm–1) |
0.0053 |
0.0088 |
0.0077 |
0.0067 |
| Detection limit (μg mL–1) |
0.312 |
0.186 |
0.25 |
0.156 |
| Quantitation limit (μg mL–1) |
1.04 |
0.62 |
0.85 |
0.52 |
| Regression equation*
Slope (b) |
0.1900 |
0.114 |
0.13 |
0.15 |
| Intercept (a) |
0.0015 |
- 0.0077 |
- 0.0095 |
0.0060 |
| Standard deviation (SD) |
0.0052 |
0.0062 |
0.0085 |
0.0052 |
| Correlation coefficient (r ) |
0.9997 |
0.9995 |
0.9998 |
0.9988 |
*with respect to A=a + bC where A is the absorbance in μg mL–1, a is the intercept,
b is the slope