What is a handheld Raman spectrometer?

A portable Raman spectrometer is a hand held tool used to identify or verify the components of a sample. The portable Raman spectrometer collects light emitted from a sample after it is hit with a laser and with the collected light creates a spectrum that is used to identify the material .

How much does a Raman spectrometer cost?

Commercially available Raman spectrometers cost a minimum of $12,000 U.S. and are thus unaffordable by most schools and colleges. There have been several efforts to provide cost-effective solutions for RS, and significant contributions are listed in Table 1.

What does Raman spectroscopy measure?

Raman spectroscopy is an analytical technique where scattered light is used to measure the vibrational energy modes of a sample. Raman spectroscopy can provide both chemical and structural information, as well as the identification of substances through their characteristic Raman ‘fingerprint’.

What are the components of Raman Spectroscopy?

There are three primary components to any Raman spectrometer: an excitation source, a sampling apparatus, and a detector.

What is Spectrometer physics?

Spectrometer, Device for detecting and analyzing wavelengths of electromagnetic radiation, commonly used for molecular spectroscopy; more broadly, any of various instruments in which an emission (as of electromagnetic radiation or particles) is spread out according to some property (as energy or mass) into a spectrum …

How does a Raman microscope work?

Raman is a light scattering technique, whereby a molecule scatters incident light from a high intensity laser light source. Most of the scattered light is at the same wavelength (or color) as the laser source and does not provide useful information – this is called Rayleigh Scatter.

Is Raman spectroscopy expensive?

Raman spectroscopy is a much more expensive technique to use than IR since high powered lasers and amplification sources are needed to get sensitive results. The heating of samples through the intense laser radiation can also destroy the sample or cover the Raman spectrum.

How does Raman spectroscopy work?

Raman spectroscopy works by shining a monochromatic light source—usually a laser—onto a sample and detecting the scattered light. Most scattered light is at the same frequency as the excitation source and does not offer helpful information, this is known as either Rayleigh or elastic scattering.

What is basic principle of Raman Spectroscopy?

What are the Basic Principles of Raman Spectroscopy. It is the shift in wavelength of the inelastically scattered radiation that provides the chemical and structural information. Raman shifted photons can be of either higher or lower energy, depending upon the vibrational state of the molecule under study.

Why do we need Raman Spectroscopy?

Raman spectroscopy can differentiate chemical structures, even if they contain the same atoms in different arrangements. Analyse your sample multiple times without damage. If you can use an optical microscope to focus onto the analysis region, you can use a Raman microscope to collect its Raman spectrum.

What are the applications of Raman Spectroscopy?

Whether the goal is qualitative or quantitative data, Raman analysis can provide key information easily and quickly. It can be used to rapidly characterise the chemical composition and structure of a sample, whether solid, liquid, gas, gel, slurry or powder.

What are two basic types of spectrometer?

There are two basic types of atomic spectrometers: emission and absorbance. In either case a flame burns the sample, breaking it down into atoms or ions of the elements present in the sample. An emission instrument detects the wavelengths of light released by the ionized atoms.

When to use a handheld Raman spectroscopy analyzer?

Handheld Raman spectroscopy has contributed to increased quality control and sample screening through cost-effective, easy-to-use analyzers that can be used at the point of need. Raman spectroscopy can be used for direct sample analysis typically without preprocessing or preparation.

How does the tacticid mobile Raman spectrometer work?

The TacticID Mobile uses Raman spectroscopy to measure the molecular fingerprint of a sample that is identified with the embedded spectral library of over 1,200 narcotics, precursors, toxic and common chemical, pharmaceutical drugs and explosives.

What are the different lines of Raman spectrometers?

B&W Tek has two lines of handheld Raman spectrometers to choose between: TacticID and NanoRam. The TacticID line is specifically geared toward unknown material identification in the safety and security field, where users are encountering unknown substances that they need to identify for personal and public safety reasons.

What can the nanoram 1064 Raman spectrometer be used for?

Compact and agile, the NanoRam-1064 can be used by non-technical users to rapidly identify samples in the lab, warehouse, loading dock or field, helping to eliminate quarantine areas and expedite materials through the manufacturing lifecycle.