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20040400 XMUGXQ PFS0601 Principles of Fluorescence Spectroscopy Chemistry Department XMU.

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Presentation on theme: "20040400 XMUGXQ PFS0601 Principles of Fluorescence Spectroscopy Chemistry Department XMU."— Presentation transcript:

1 20040400 XMUGXQ PFS0601 Principles of Fluorescence Spectroscopy Chemistry Department XMU

2 20040400 XMUGXQ PFS0601 Chapter Six Methods of Fluorometry

3 20040400 XMUGXQ PFS0601 Methods of fluorometry 6.1 IntroductionIntroduction 6.2 Conventional Fluorometry 6.3 Synchronous Fluorescence ScanSynchronous Fluorescence Scan 6.4 3D fluorescence spectroscopy3D fluorescence spectroscopy 6.5 Derivative fluorescence spectroscopyDerivative fluorescence spectroscopy

4 20040400 XMUGXQ PFS0601 6.1 Introduction Models Steady-state fluorescence measurement Time-domain fluorescence measurement Time resolved fluorescence Frequency-domain fluorescence measurement I0I0 t I0I0 t I0I0 t Light source

5 20040400 XMUGXQ PFS0601 6.3 Synchronous Fluorescence Scan SFS Conventional Fluorometry Excitation spectrum Emission spectra 1 2 3 4 F F em Scan ex at a certain em Scan em at a certain ex

6 20040400 XMUGXQ PFS0601 Synchronous fluorescence scan SFS models Scan ex and em simultaneously Constant-wavelength SFS Constant-energy SFS Variable-angle SFS

7 20040400 XMUGXQ PFS0601 Constant-wavelength SFS

8 20040400 XMUGXQ PFS0601 Narrowing spectral band & simplifying emission spectrum

9 20040400 XMUGXQ PFS0601 Narrowing spectral band & simplifying emission spectrum

10 20040400 XMUGXQ PFS0601 Multi-component analysis F F em CFS F em SFS

11 20040400 XMUGXQ PFS0601 Theory Where Ex is the excitation wave function at a given wavelength; Em is the emission wave function at a given wavelength; l is the thickness of the sample; K is the instrumental geometry and related parameters.

12 20040400 XMUGXQ PFS0601 Choosing the  Generally, the stoke’s shift F

13 20040400 XMUGXQ PFS0601 Choosing the 

14 20040400 XMUGXQ PFS0601 Choosing the 

15 20040400 XMUGXQ PFS0601 Constant-energy SFS PAHs

16 20040400 XMUGXQ PFS0601 Variable-angle SFS

17 20040400 XMUGXQ PFS0601 Variable-angle SFS

18 20040400 XMUGXQ PFS0601 Variable-angle SFS

19 20040400 XMUGXQ PFS0601 Variable-angle SFS

20 20040400 XMUGXQ PFS0601 Variable-angle SFS

21 20040400 XMUGXQ PFS0601 Variable-angle SFS

22 20040400 XMUGXQ PFS0601 Reference Trends in analytical chemistry, 21(12): 787-798, 2002

23 20040400 XMUGXQ PFS0601 3 dimensional fluorescence spectroscopy

24 20040400 XMUGXQ PFS0601 Contour 3D spectra

25 20040400 XMUGXQ PFS0601 Finger printing

26 20040400 XMUGXQ PFS0601 Volume integral

27 20040400 XMUGXQ PFS0601 Derivative fluorescence 芘

28 20040400 XMUGXQ PFS0601 Derivative fluorescence 峰距法切线法 峰零法

29 20040400 XMUGXQ PFS0601 application b a

30 20040400 XMUGXQ PFS0601 application

31 20040400 XMUGXQ PFS0601 application

32 20040400 XMUGXQ PFS0601 application Finger printing


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