Wireless Spectrometer Spencer R. Adelberg Chemistry Teacher - - PowerPoint PPT Presentation

Wireless Spectrometer

Spencer R. Adelberg Chemistry Teacher Plainview-Old Bethpage JFK High School

THEN

NOW

Pasco Wireless Spectrometer

• Wireless spectrometer at an affordable price
• Chemistry
• Biology
• Physics
• How it works?
• Light from the LED-boosted tungsten light source passes

through the solution and a high quality diffraction grating.

• The CCD array detects the light for collection and analysis

Advantages

• Bluetooth and USB connectivity enables use with tablets

and computers

• Can measure:
• Intensity
• Absorbance
• Transmittance
• Fluorescence

Free Software

• Available for Windows and Mac computers
• Free Apps for IOS devices and Android tablets
• Free software walks you through the process of

calibration, performing a full spectrum scan, determining

• ptimum wavelength for study, and concentration and

kinetics experiments

Software Applications

• Analyze a solution in terms of:
• Intensity vs. Wavelength
• Absorbance, Transmittance, and/or Fluorescence vs. Wavelength
• Analyze a solution’s concentration
• Analyze a solution’s reaction over time

Instructional Videos

• https://www.youtube.com/watch?v=i5BexMng2WY
• https://www.youtube.com/watch?v=in1peV-lp1g
• https://www.youtube.com/watch?v=49F3yj_3GVY

3 Sample Lab Activities

• Beer’s Law
• Kinetics
• Percent Copper

Chemistry Labs

• Emission Spectra of Light
• Absorbance and Transmittance Spectra
• Beer’s Law: Concentration and Absorbance
• Kinetics of a Chemical Reaction
• Fluorescence

Biology Labs

• Photosynthesis
• Absorbance Spectra of Plant Pigments
• Concentration of Proteins in Solution
• Rate of Enzyme-Catalyzed Reactions
• Growth of Cell Cultures

Physics Labs

• Light Intensity Across Visible Spectrum
• Emission Spectra of Light Sources
• Match Known Spectra with References

Fiber Optic Cable

• Allows you to perform emissions spectroscopy experiments
• Software includes some known emissions spectra