Spectroscopy Lab Performing Metallurgical, Chemical and Materials Analysis and Testing

Raman Spectroscopy:
Raman measures the interaction of light with matter. Laser light is used as the source and causes
the atoms in the molecules to vibrate. Analyzing the scattered light provides a fingerprint and
reveals information about the chemical structure and the physical state of samples.

FAR-IR: Laboratory spectroscopy using long-wavelength infrared light to identify and characterize
target molecules.

DRIFT NIR/MID: Diffuse Reflectance Infrared Fourier Transform (DRIFT) spectroscopy, near
infrared to mid-infrared.

NIR Near Infrared Reflection: Near-Infrared (NIR) spectroscopy utilizes the reflective or
transmissive properties of specific wavelengths of near-infrared band light in a sample.
Measurement of the spectra reveals samples properties and composition. NIR analysis can
predict chemical and physical characteristics of a sample based on comparison of its spectra to
library spectral data of known samples.

ATR, Attenuated Total Reflection, ATR-FTIR: ATR is a spectrophotometric analytical technique
using optical interface energy reflection of two media having different refractive indices. ATR has a
specificity for organic surface groups with a sampling depth from tenths of a micrometer to
micrometers.

XRF, X-Ray Fluorescence Spectrometry: XRF provides determination of major and trace
elements in solids. The two types of XRF spectrometers are used: wavelength dispersive
spectrometers (WDX or WDS) and energy dispersive spectrometers (EDX or EDS). EDX
spectrometers are smaller, often portable, and provide faster measurement..

VIBRATIONAL SPECTROSCOPY ANALYSIS
TECHNIQUES AND CAPABILITIES
MEIC laboratories provide expertise in spectroscopic
analytical test solutions requiring identification of
components, unknowns, and trace materials. A
significant range of materials and products are tested
via a partner lab network. Infrared spectroscopy (IR
Spectroscopy) uses the infrared portion of the
electromagnetic spectrum. As with all spectroscopic
techniques, IR spectroscopy can be used to
investigate the composition of a material sample.

UV-Visible
Absorption
Reflectance
Transmission Spectroscopy
FTIR Fourier Transform Infrared
TOP-NIR
Far-IR
Raman Microscopy
ATR, Micro ATR, ATR-FTIR
DRIFT NIR/MID
Raman Microscopy
Visible and NIR Fluorescence, XRF
Inductively Coupled Plasma (ICP)