Klarite SERS Performance
Reproducibility
- no hot spots
Reproducibility data from 567 spectra taken at 10um intervals over
a 200um x 260um area on Klarite SERS substrate. Magnitude of the
1072cm-1 Raman peak is shown. Average signal level 30,000 counts.
Relative standard deviation observed <7%.
Spectra recorded on Renishaw’s inVia Reflex Raman microscope
with 785nm excitation, 10mW laser power, 1sec exposure, 50x magnification,
confocal configuration. Sample Benzenethiol monolayer
Glucose
Spectra recorded on Renishaw’s inVia Reflex Raman microscope
with 785nm excitation, 10mW laser power, 10sec exposure time. No
background subtraction has been applied.
Preliminary Klarite SERS spectrum of 0.1 Molar Glucose
solution.
Histamine
Spectra recorded on Renishaw’s inVia Reflex Raman microscope
with 785nm excitation, 10mW laser power, 10sec exposure time. No
background subtraction has been applied
Typical Klarite SERS spectrum of 0.075 Molar partially
crystalline Histamine.
Urea
Spectra recorded on Renishaw’s inVia Reflex Raman microscope
with 785nm excitation, 10mW laser power, 10sec exposure time. No
background subtraction has been applied.
Typical Klarite SERS spectrum of 2.3x10-4 Molar Urea solution
dehydrated to form non-crystalline thin film.
Phenylalanine
Spectra recorded on Renishaw’s inVia Reflex Raman microscope
with 785nm excitation, 10mW laser power, 10sec exposure time. No
background subtraction has been applied.
Preliminary Klarite SERS spectrum of 0.01 Molar Phenylalanine
at different points of crystallisation on dehydrated sample.
L-Alanine
Spectra
recorded on Horiba Jobin Yvon's LabRAM ARAMIS Raman system with 785nm excitation, 15mW laser power, 10 sec exposure time. No background subtraction has been applied. Sample: 0,5 millimolar L-Alanine diluted with purified water.
Benzenethiol
Typical surface enhanced Raman spectrum obtained with a Benzenethiol
sample on a Klarite substrate.
Sample- Benzenethiol, laser power at 633 and 785nm <5mW, integration time 10 seconds, Raman systems Renishaw RM1000 and Renishaw RM2000
Rhoadamine 6G dye
Spectra recorded on Horiba Jobin Yvon's LabRAM ARAMIS Raman system with 532nm excitation, 0.26mW laser power, 10 sec exposure time. Sample: 1 micromolar concentration Rhoadamine 6G dye in de-ionised water solution.
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