Investigate the effects of extent of spectral overlapping on the results of rafa
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?. Investigate the effects of extent of spectral overlapping on the results of RAFA. Unknown sample. Standard sample. Second order data. Trilinearity. How the idea of RAFA can be used for quantitation in other systems?. HPLC-DAD. FIA. Spectroscopic titrations. Kinetic. RAFA and HPLC.

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Investigate the effects of extent of spectral overlapping on the results of RAFA

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Investigate the effects of extent of spectral overlapping on the results of rafa

?

Investigate the effects of extent of spectral overlapping on the results of RAFA


Investigate the effects of extent of spectral overlapping on the results of rafa

Unknown sample

Standard sample

Second order data

Trilinearity

How the idea of RAFA can be used for quantitation in other systems?

HPLC-DAD

FIA

Spectroscopic titrations

Kinetic


Investigate the effects of extent of spectral overlapping on the results of rafa

RAFA and HPLC


Investigate the effects of extent of spectral overlapping on the results of rafa

HPLC-DAD


Investigate the effects of extent of spectral overlapping on the results of rafa

Three are some problems in using RAFA for mixture analysis based on HPLC measurements


Investigate the effects of extent of spectral overlapping on the results of rafa

Mixture

Standard

X + y

X

Mixture

Standard

Mixture

X + y

X

X + y

Standard

X

Trilinearity in HPLC-DAD data

a) In the presence of trilinearity

Rank=2

Rank=1

Augmentation

Rank=2

Rank=2


Investigate the effects of extent of spectral overlapping on the results of rafa

Mixture

Standard

X + y

X

Standard

Mixture

X

X + y

Trilinearity in HPLC-DAD data

b) In the absence of trilinearity

Rank=2

Rank=1

Augmentation

Mixture

X + y

Standard

Rank=3

X

Rank=2


Investigate the effects of extent of spectral overlapping on the results of rafa

sx

sx

cx

sy

Mixture

Standard

cy

cx

X + y

X

sx

cx

sy

Mixture

cy

X + y

Standard

0

cx

X

sx

0

cx

sy

0

Mixture

Standard

cx

sx

0

cy

X + y

X

=

=

=

=


Investigate the effects of extent of spectral overlapping on the results of rafa

Free study

Rank Annihilation Correction for the Amendment of Instrumental Inconsistencies

Anal. Chim. Acta

464, 249-259,2002


Investigate the effects of extent of spectral overlapping on the results of rafa

RAFA and Spectrophotometric monitoring of pH-metric titration of mixture of acids or bases


Investigate the effects of extent of spectral overlapping on the results of rafa

Spectrophotometric monitoring of pH-metric titration of mixture of acids or bases

[HA]

[A-]

HB

HA

B-

[B-]

[HB]

A-

HA A- + H+

HB B- + H+


Investigate the effects of extent of spectral overlapping on the results of rafa

Spectrophotometric monitoring of pH-metric titration of mixture of acids or bases

C0HA=1

C0HA=1

C0HB=2

C0HB=0

HA A- + H+

HA A- + H+

Unknown sample

Standard sample

HB B- + H+

Rank=2

Rank=3


Investigate the effects of extent of spectral overlapping on the results of rafa

Rank deficiency in a system with two independent chemical processes

HA A- + H+

HB B- + H+

Ct2 [H+]

Ct2 Ka2

Ct1 [H+]

[HB] =

[A-] =

Ct1 Ka1

[HA] =

[H+] + Ka2

[A-] =

[H+] + Ka2

[H+] + Ka1

[H+] + Ka1

[HB] + [B-] = Ct2

Ct1 = a Ct2

[HA] + [A-] = a ([HB] + [B-])


Investigate the effects of extent of spectral overlapping on the results of rafa

RAFA for analysis of an acid in a mixture

C0HA=1

C0HB=2

HA A- + H+

Unknown sample

HB B- + H+

C0HA=1

C0HB=0

HA A- + H+

Standard sample

Rank=2

Rank=3


Investigate the effects of extent of spectral overlapping on the results of rafa

RAFA1.m file

Rank Annihilation Factor Analysis


Investigate the effects of extent of spectral overlapping on the results of rafa

Simulation of spectrophotometric monitoring of pH metric titration of a binary acid mixture


Investigate the effects of extent of spectral overlapping on the results of rafa

?

Use RAFA for determination of a known acid in an unknown binary mixture


Investigate the effects of extent of spectral overlapping on the results of rafa

?

Use RAFA for determination of a known acid in an unknown binary mixture containing an inert chemical compound


Investigate the effects of extent of spectral overlapping on the results of rafa

?

Use RAFA for determination of a known acid in an unknown ternary mixture


Investigate the effects of extent of spectral overlapping on the results of rafa

Three are some problems in using RAFA for mixture analysis based on equilibrium measurements


Investigate the effects of extent of spectral overlapping on the results of rafa

Spectrophotometric monitoring of complexometric titration of mixture of metal ions

M + L ML

M’ + L M’L

[M’L]

M’L

ML

[M’]

[L]

[M]

[ML]

L


Investigate the effects of extent of spectral overlapping on the results of rafa

Spectrophotometric monitoring of complexometric titration of mixture of metal ions

C0M=1

C0M=1

C0M’=2

C0M’=0

M + L ML

M + L ML

Unknown sample

Standard sample

M’ + L M’L

Rank=2

Rank=3


Investigate the effects of extent of spectral overlapping on the results of rafa

Spectrophotometric monitoring of pH-metric titration of mixture of metal ions and an acidic ligand

HL L- + H+

M + HL ML + H

M + L ML

M’ + HL M’L + H

M’ + L M’L


Investigate the effects of extent of spectral overlapping on the results of rafa

Spectrophotometric monitoring of pH-metric titration of mixture of metal ions and an acidic ligand

ML

[HL]

[M’L]

M’L

HL

L

[ML]

[M]

[L]

[M’]


Investigate the effects of extent of spectral overlapping on the results of rafa

C0M=1

C0M=1

C0M’=2

C0M’=0

HL L + H

HL L + H

M + HL ML + H

M + HL ML + H

M + L ML

Unknown sample

Standard sample

M’ + HL M’L + H

M + L ML

M’ + L M’L

Rank=2

Rank=3

Spectrophotometric monitoring of pH-metric titration of mixture of metal ions and an acidic ligand


Investigate the effects of extent of spectral overlapping on the results of rafa

Write a m-file for modeling the concentration profiles of the following chemical system as a function of pH

HL L- + H+

M + HL ML + H

M + L ML

M’ + HL M’L + H

M’ + L M’L


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