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Environmental Chemistry Lab
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The lab studies toxic substances in environmental chemistry using theoretical calculations and mass spectrometry.

AboutAbout the lab
Exploring toxic substances through both theory and analysis
The lab of Lecturer Tomoko Imasaka specializes in theoretical chemistry, physical chemistry, and analytical chemistry, and conducts research on toxic substances.
Using quantum chemistry calculation software, the lab predicts from theory the transition energies and ionization potentials of substances such as dioxins and sarin.
The lab analyzes data from gas chromatography-time-of-flight mass spectrometry, and has also created a program that calculates an original reliability factor to improve detection limits.
Listed research themes include laser ionization mass spectrometry, development of mass spectrometers, and generation of ultrashort light pulses.
Key terms
- Mass spectrometry
- An analytical method that ionizes a substance and identifies its components from differences in mass
- Ionization potential
- The energy required to remove an electron from a molecule and turn it into an ion
- Ultrashort light pulses
- Pulsed light that stays on for an extremely short time
ResearchResearch themes
The lab targets toxic substances, working on theoretical prediction through quantum chemistry calculations and on the analysis of mass spectrometry data. Its research themes include generation of ultrashort light pulses, development of mass spectrometers, and laser ionization mass spectrometry.
View More ↗MembersFaculty
- LecturerTomoko Imasaka
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “EPA GULF BREEZE LABORATORY, CHEMISTRY LAB. A PHYSICAL SCIENCE TECHNICIAN IS EXTRACTING PESTICIDES FROM SEDIMENT SAMPLES - NARA - 546275” William C. Shrout / Public domain (cropped)
- Theoretical Prediction and Analytical Data Analysis for Toxic Substances: “Model 21-103 Mass Spectrometer in use at Exxon analytical research laboratory 1974” Courtesy of Science History Institute, No Known Copyright / Public domain (cropped)
- Related lab (Environmental Chemistry Lab): “Mass-Spectrometer-MASPEC---Europa-Clipper” NASA / Public domain (cropped)
- Related lab (Architectural and Urban Environmental Engineering Lab): “US Navy 070724-N-6247M-001 Aerographers Mate 3rd Class Daniel Miles and Aerographers Mate 1st Class Jessica Martin take weather observations from the rooftop of the operations building at Naval Air Station Whidbey Island” U.S. Navy photo by Mass Communication Specialist 1st Class Bruce McVicar / Public domain (cropped)
- Related lab (Architectural and Urban Environmental Engineering Lab): “Weather Station USDA” USDA photo by Scott Bauer. Image Number K7688-7 / Public domain (cropped)
- Related lab (Biophysics Lab): “Depth Coded Phalloidin Stained Actin Filaments Cancer Cell” Howard Vindin / CC BY-SA 4.0 (cropped)
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