Podcast
Questions and Answers
What type of light source is usually used in Raman spectroscopy?
What type of light source is usually used in Raman spectroscopy?
- White light from a halogen lamp
- Ultraviolet light from a UV lamp
- Monochromatic light from a laser (correct)
- Fluorescent light from a fluorescent lamp
What is Raman spectroscopy commonly used for in chemistry?
What is Raman spectroscopy commonly used for in chemistry?
- Determining rotational modes of molecules
- Determining electronic states of molecules
- Determining magnetic properties of molecules
- Determining vibrational modes of molecules (correct)
What does Raman spectroscopy rely upon for the scattering of photons?
What does Raman spectroscopy rely upon for the scattering of photons?
- Thomson scattering
- Inelastic scattering (correct)
- Elastic scattering
- Compton scattering
How is the elastic scattered radiation at the wavelength corresponding to the laser line filtered out in Raman spectroscopy?
How is the elastic scattered radiation at the wavelength corresponding to the laser line filtered out in Raman spectroscopy?
What kind of information does Raman spectroscopy typically yield in comparison to infrared spectroscopy?
What kind of information does Raman spectroscopy typically yield in comparison to infrared spectroscopy?
What is the science of plant life and a branch of biology called?
What is the science of plant life and a branch of biology called?
Where does the term 'botany' originate from?
Where does the term 'botany' originate from?
What was one of the earliest botanical gardens attached to universities?
What was one of the earliest botanical gardens attached to universities?
What did botany originate as in prehistory?
What did botany originate as in prehistory?
What groups of organisms were traditionally included in the study of botany?
What groups of organisms were traditionally included in the study of botany?
Flashcards
Raman Spectroscopy Light Source?
Raman Spectroscopy Light Source?
Monochromatic light beam
Raman Spectroscopy Use?
Raman Spectroscopy Use?
Determines vibrational modes of molecules.
Raman Spectroscopy Scattering
Raman Spectroscopy Scattering
Inelastic Scattering
How to filter out elastic scattering?
How to filter out elastic scattering?
Using notch, edge pass, or band pass filters.
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Raman vs. Infrared (IR) Spectroscopy
Raman vs. Infrared (IR) Spectroscopy
Yields similar, yet complementary information.
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Botany
Botany
The science of plant life and a branch of biology
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Botany Origin
Botany Origin
Ancient Greek
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Earliest botanical garden attached to universities?
Earliest botanical garden attached to universities?
Padua botanical garden
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Botany Origin in Prehistory
Botany Origin in Prehistory
Herbalism
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Traditionally Included Organisms
Traditionally Included Organisms
Fungi and algae
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Raman Spectroscopy
- Commonly employs lasers as light sources for excitation.
- Primarily used in chemistry for molecular identification and structural elucidation.
- Relies on inelastic scattering of photons, known as Raman scattering, to obtain spectral data.
- Utilizes optical filters to remove elastic scattered radiation that corresponds to the laser wavelength, allowing only shifted wavelengths to be recorded.
- Provides unique vibrational information about molecular bonds, offering advantages over infrared spectroscopy, which focuses on vibrational transitions.
Botany
- The science of plant life and a branch of biology is known as botany.
- The term "botany" derives from the Greek word "botane," meaning "plant."
- One of the earliest botanical gardens linked to universities is the University of Padua's Orto Botanico, established in 1545.
- Botany originated in prehistory as a practice of gathering and using plants for food, medicine, and materials.
- Traditionally included studies of plants, fungi, algae, and other photosynthetic organisms.
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