Product category:
Materials testing equipment
News Release from: Aspectrics
Edited by the Engineeringtalk Editorial
Team on 25 January 2007
EP-IR spectroscopy technology explained
Application note demonstrates the ability of EP-IR spectroscopy technology to record in detail all chemical information pertaining to an ultra-rapid chemical reaction.
Aspectrics has published a new application note demonstrating the ability of the company's patented EP-IR spectroscopy technology to record in detail all chemical information pertaining to an ultra-rapid chemical reaction The results from this application revealed that EP-IR technology is capable of capturing reaction information over the entire spectral range at an ultrafast rate of 10ms, resolving phenomena such as energy combustion, water vapor and CO2 overtone as short as 30ms
This article was originally published on Engineeringtalk on 4 Aug 2005 at 8.00am (UK)
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The new application note allows users in the process industry to monitor their processes in real time and is available to download free-of-charge from the company's website.
This application was carried out using Aspectrics' MC5000A 128-channels EP-IR analyser covering the 2.5-5.0um spectral range was used to record the kinetics of methanol explosive combustion.
The spectrometer was mounted on the Aspectrics multipurpose sampling bench without accessories in the sample compartment.
The mid-IR source was continuously left on to provide baseline emission signal.
Approximately 2-3ml of methanol was placed in an Erlenmeyer flask.
A slow and continuous flow of air was injected at the bottom of the Erlenmeyer to ensure regular outflow of methanol vapor from the neck of the Erlenmeyer.
After a few minutes of air flowing into the methanol, the methanol vapor was ignited using a lit wooden match, resulting in simultaneous real-time observation pertaining to the thermodynamics of the reaction and the formation of the products of the reaction.
EP-IR spectroscopy is a novel technique allowing access to full spectrum information with an outstanding speed of 100 scans per second.
EP-IR spectrometers rely on the use of a single, nonhygroscopic, vibration insensitive proprietary encoder disk with an MTBF superior to 50,000 continuous use hours.
This post-dispersive technology enables the design and implementation of many different sampling technologies for the analysis of gases, liquids or solids.
It also allows for easy versatile use for emission, transmission and absorption spectroscopy techniques.
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