Research Article
Investigating Advanced Approaches Based on Iso-Absorptivity Coefficient in Unresolved Spectral Signals of Binary Mixtures
Table 1
A brief about the investigation of the four applied spectrophotometric methods.
| | Comparison points | a-Centering | AS | AM | A-Sum |
| | Spectral signal | Zero-order | Zero-order | Ratio | Derivative |
| | Number λ of measurements (for both drugs) | 2
λmax(x), λmax(y) | 1
λiso | 1
λiso | 1
λiso |
| | Prepared factors | (NS′):
(FS′): | | None | |
| | Prepared spectra | (NS′)/(FS′) | None | (NS′) divisor | None |
| | Number of manipulating steps | (NS′): 4
(FS′): 3 | 2 | 3 | 3 |
| | Advantages | (i) Max accuracy (λmax) | (i) Simplicity | (i) Direct modulation of amplitude to concentration | (i) Maximum sensitivity | | (ii) Testing purity | (ii) Minimum manipulation | (ii) Eliminate interference |
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NS′: normalized spectrum; FS′: factorized spectrum.
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