How Raman Spectroscopy Works & How We Save You Time & Money
Despite the diversity in methods, the Excedr lease program is able to source all instrument types and can accommodate any brand preferences your end-user might have. Request an estimate today and see how leasing can discount your SERS price.
All equipment brands/models are available
Here are the advantages of Excedr’s Raman spectrometer leasing program:
- Eliminates the upfront cost of purchasing equipment by diffusing its cost over time
- Payments may be 100% tax deductible*, which yields you significant cash-savings
- It is cheaper to lease with Excedr than it is to buy outright
- Equipment downtime is minimized with our repair coverage
- We handle and streamline the admin work associated with instrument procurement and maintenance
- With the cash saved through our program, labs are better able to reinvest in their core business and operations (staffing, inventory, marketing/sales, etc.)
*Please consult your tax advisor to determine the full tax implications of leasing equipment.
When a single frequency of light or monochromatic radiation strikes a material it interacts with it in some way.
For example, the light may be reflected, absorbed, or scattered. The study of how this electromagnetic radiation interacts with matter is called spectroscopy. The different techniques in spectroscopy vary based on what they are observing, the type of radiation used, and how they record the interactions.
Raman spectroscopy is a spectroscopic technique that relies on inelastic scattering of light to detect vibrational, rotational, and other low-frequency modes in a system. Used in chemistry, it is able to identify molecules by providing a structural fingerprint. Unlike other vibrational spectroscopic techniques, Raman looks at the scattering of light rather than the absorption of it. This means that the sample preparation is much less complex and that there are no aqueous absorption bands to throw off the data. When a monochromatic light source, like a laser, hits a material the light will scatter. Most of the scattered light will be the same wavelength and frequency as the initial light source, however, a small amount of scattered light will change in energy. This change in energy is what can then be measured to identify the object. This particular scattering phenomenon is referred to as Raman scattering.
Raman scattering, or the Raman effect, is named after Sir C.V. Raman, and describes the inelastic scattering of light off of matter when struck by light. When light hits something, most of the photons that are scattered are the same energy as the light it was hit with. Sir Raman and his team noticed that a small amount of scattered energy scattered inelastically, meaning its energy was different than that which it was hit with. This difference in energy is unique to each type of molecule that it bounces off of, and when plotted can be used as a fingerprint for that element.
Raman Spectrometer Techniques, Methods, & Costs
Raman Spectroscopy relies on different techniques to observe change, and is explained in further detail here:
Surface-Enhanced Raman Spectroscopy (SERS)
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A highly accurate and powerful technique, SERS, sometimes called surface-enhanced Raman scattering, improves normal Raman scattering by huge orders of magnitude and can be used to detect single molecules. This technique applies Raman intensity and improves Raman scattering through an electromagnetic amplification mechanism. This enhancement occurs on the surface of a rough metal substance or by nanostructures like plasmonic-magnetic silica nanotubes. Due to its ability to identify chemical species and analyze the makeup of a mixture on the nanoscale, this technique is used extensively in the fields of chemistry, pharmaceuticals, and material science.
Resonance Raman Spectroscopy
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By using a specific wavelength to cause the scattering, resonance Raman spectroscopy is able to increase the intensity of the scattering. This is done by choosing a wavelength that either overlaps or is extremely close to the electronic transition of the sample that is being observed. Due to resonance Raman spectroscopy’s increased intensity, it can detect samples with extremely low concentrations in a substance. One major disadvantage of this technique is that the fluorescence of an object may throw off the data collected and should be accounted for. This makes it an extremely useful technique in analyzing environmental pollutants that have concentrations in the parts per billion range.
Transmission Raman Spectroscopy
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By shining light through a sample in the direction of the excitation laser, transmission Raman spectroscopy allows for bulk analysis of powders, tablets, and opaque substances. By shooting the light through the object and analyzing the light that comes out the other side, it allows for analysis of the entire volume of the material. Their ability to perform fast, quantitative analysis of substances makes them useful in pharmaceutical and medical analysis, as well as material sciences.
Raman Optical Activity Spectroscopy
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Also known as spontaneous vibrational Raman optical activity scattering, this vibrational spectroscopy technique looks at the difference in intensity of Raman scattered from the right and left circularly polarised light. Similar to vibrational circular dichroism, Raman optical activity directly looks at chirality, or molecular vibrations. Due to its ability to observe chirality, this spectroscopic technique is very useful in chemistry and biology.
Sir Raman & Raman Scattering
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Sir Chandrasekhara Venkata Raman, or C.V. Raman, was a professor at Calcutta University. In 1930 he would win the Nobel Prize for Physics for his work observing light scattering. His and his team’s discovery would later be named after C.V. Raman, and come to be known as Raman scattering. Sir Raman famously found his inspiration in light scattering while on a ship traveling from London to Bombay. He became fascinated with the blue color of the Mediterranean sea and was not satisfied with the current explanation for this phenomenon at the time. He would find that the color of the sea was due to the scattering of light by water molecules. His studies of scattered light continued and led him to find that a small amount of light scattered was of a different color than the incident light. He describes this phenomenon in his published report in Nature, titled “A New Type of Secondary Radiation,” and in 1930 this discovery would win him the Nobel Prize for physics.
A Raman spectrometer is such an important tool for scientists in identifying molecules and observing the vibrational behavior of substances. Acquiring this useful piece of equipment should not mean financially handicapping your company. Whatever your spectrometry needs, be it leasing a Raman or X-ray spectrometer, we’re here to help you. Get in touch with us by filling out our online contact form or by calling (510) 982-6552 and we can discuss in detail your leasing options.
We Offer Resonance Raman Spectrometer Leases to Fit Every Need
This off-balance sheet financing structure provides three options at the end of the term. The lessee has the option to return the equipment to the lessor, renew at a discounted rate, or purchase the instrument for the fair market value. Monthly payments are also 100% tax deductible which yields additional monetary savings.
If you recently bought equipment, Excedr can offer you cash for your device and convert your purchase into a long-term rental. This is called a sale leaseback. If you’ve paid for equipment within the last ninety days, we can help you recoup your investment and allow you to make low monthly payments. This also frees up money in your budget rather than tying it down to a fixed asset.
Transmission Raman Spectrometer Manufacturers & Models on the Market
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Mira P Advanced, Mira P Basic, Mira DS Basic, Mira DS Advanced, Mira M-1, Mira M-3, SPELEC RAMAN Instrument
DXR3 SmartRaman, iXR Raman Spectrometer, TruScan RM Handheld Raman Analyzer, FirstDefender RM Chemical Identification System, FirstDefender RMX Handheld Chemical Identification
Cobalt Insight100 Series, Cobalt Insight200M, TRS100, RapID System, Resolve
NRS-5000 Series, NRS-5100, NRS-5200, NRS-5500, NRS-5600, NRS-7000 Series, NRS-7100, NRS-7200, NRS-7500, NRS-7600, RMP 500 Series, RFT-6000 FT Raman Spectrometer
MacroRAM, Modular Raman Spectrometer, iHR320, iHR550, FHR1000, THz-Raman, LabRAM Odyssey, LabRAM HR, LabRAM HR Evolution,
NanoRam, TacticID-GP, TacticID-N, TacticID-1064, i-Raman Prime, i-Raman Plus, i-Raman EX, STRam, QTRam,i-Raman Pro
MultiSpec Raman Spectrometer
Raman All-In-One (AIO), Raman Walkup All-In-One (WAIO), TouchRaman Immersion technology, TouchRaman BallProbe
ChemLogix,ChemLogix GasRaman, GasRaman NOCH-1, GasRaman Noch-2, Assurx, Assurx-G7, ExpertRaman W-Series
Cora 7X00 series, Cora 100, Cora 5X00 series
HyperFlux PRO plus
Shakti PR-1000 Raman Analyzer, Portable Raman Systems
Raman-HR-TEC-405, Raman-ER-TEC-405, Raman-HR-TEC-532, Raman-ER-TEC-532, Raman-HR-TEC-785, Raman-SR-785, Raman-HR-TEC-1064
CHEM 500, Inspector 500, Inspector 300, Inspector Scope, ReporteR, Advantage Series Benchtop Raman, Advantage 532, Advantage 633, Advantage 785, Advantage 1064, SERS
RaPort, R532, R532-50, R1064, R1064-1c
Morphologi 4-ID, Morphologi G3-ID
NS2 NanoSpectralyzer, NS3 NanoSpectralyzer
Identity Raman Reader
AvaRaman System, AvaRaman-532 TEC, AvaRaman-532 HERO-EVO, AvaRaman-785 TEC, AvaRaman Bundles, AvaRaman-A, AvaRaman-B, AvaRaman-D
Advanced Integrated Scanning Tools for Nano Technology:
QE Pro-Raman, QE Pro (Custom)
Applied Instrument Technologies:
RPM View, RPM 785, RPM MD Series
Angstrom Advanced Inc.:
RM-1000, RM-2000, RM-5000
Raman Spectrometer, Raman-SR, Raman-HR, Raman-HR-TEC, Raman-SR-TEC-IG, Raman-HR-TEC-IG
RA802 Pharmaceutical Analyzer, RA816 Biological Analyzer
J&M Analytic AG:
TIDAS L 1100 Raman, TIDAS S1200R-Raman