CHEMOMETRICS ASSISTED UV-SPECTROPHOTOMETRIC ...

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Fig.17. Scree plot for pure benzoic acid in the calibration range (5-50 µg/ml) Fig.18. Box plot for pure salicylic acid in the calibration range (5-50 µg/ml) Fig.19. Scree plot for pure salicylic acid in the calibration range (5-50 µg/ml) 27
Fig.20. Box plot for pure resorcinol in the calibration range (5-50 µg/ml) Fig.21. Scree plot for pure resorcinol in the calibration range (5-50 µg/ml) Fig.22. Box plot for benzoic acid with salicylic acid mixture 28
Page 1 and 2: ADDIS ABABA UNIVERSITY SCHOOL OF GR
Page 3 and 4: ADDIS ABABA UNIVERSITY SCHOOL OF GR
Page 5 and 6: ACKNOWLEDGEMENTS Above all, my pric
Page 7 and 8: 3.4.2. Preparation of samples......
Page 9 and 10: LIST OF TABLES Table 1. Spectral an
Page 11 and 12: LIST OF FIGURES Fig.1. How chemomet
Page 13 and 14: ABSTRACT Chemometrics-assisted spec
Page 15 and 16: Chemometric is the chemical discipl
Page 17 and 18: Y = a+bx.................. [2] wher
Page 19 and 20: from large sets of data. Using mult
Page 21 and 22: Solving the equations for the K mat
Page 23 and 24: • Calibrations are generally more
Page 25 and 26: The advent of rapid, in expensive c
Page 27 and 28: The derivative spectra are always m
Page 29 and 30: The method is based on the use of t
Page 31 and 32: 2. OBJECTIVES 2.1. General objectiv
Page 33 and 34: 3.4.2. Preparation of samples A. Wh
Page 35 and 36: drug (see the discussion section).
Page 37 and 38: 3 2.5 2 1.5 1 0.5 0 200 215 230 245
Page 39: Concentration (µg/ml) Fig.15. The
Page 43 and 44: It is obvious from the figures that
Page 45 and 46: From the calculated degree of overl
Page 47 and 48: Compound λ* (nm) Table 1. Spectral
Page 49 and 50: Table 3. Actual and predicted amoun
Page 51 and 52: Compound λ * (nm) Salicylic acid R
Page 53 and 54: Table 6. Actual and predicted amoun
Page 55 and 56: The ratio spectra thus obtained are
Page 57 and 58: 0.1 0.0 0.0 0.0 -0.0 -0.0 -0.1 -0.1
Page 59 and 60: Table.8. Actual and predicted amoun
Page 61 and 62: absorbitivity and concentration eff
Page 63 and 64: Compound λ * (nm) Salicylic acid 2
Page 65 and 66: Table 12. Actual and predicted amou
Page 67 and 68: Dividing by C t, where C t is the t
Page 69 and 70: Table 13. Actual and predicted amou
Page 71 and 72: 4.5. Principal component regression
Page 73 and 74: Table 16. Predicted concentrations
Page 75 and 76: Component analyzed Pure benzoic aci
Page 77 and 78: Com pone nt anal yzed SP * Table 20
Page 79 and 80: 6. REFERENCES 1. Fifield, F.W. and
Page 81 and 82: 26. Danzer, K., Otto, M. and Currie

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