Product category:
Liquid Analysis: Spectroscopy, Colour
News Release from: Aspectrics | Subject: 10msec chemical scans
Edited by the Processingtalk Editorial
Team on 25 January 2007
Analysers take 100 chemical scans per
second
Aspectrics explains how their patented EP-IR spectroscopy technology can record in detail, every 10msecs, all chemical information pertaining to an ultra-rapid chemical reaction
Aspectrics, the innovator of Encoded Photometric Infrared (EP-IR) analysers introduces a new application note demonstrating the ability of their 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 ultra-fast rate of 10 milli-seconds, resolving phenomena such as energy combustion, water vapour and CO2 overtone as short as 30 milli-seconds
This article was originally published on Processingtalk on 28 Mar 2008 at 8.00am (UK)
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This application was carried out using the Aspectrics MC5000A 128-channel EP-IR analyser covering the 2.5-5.0 micron spectral range, used to record the kinetics of explosive methanol 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 a baseline emission signal.
Approximately 2-3 mL 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 vapour 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 upon the use of a single, non-hygroscopic, 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.
For more information about Aspectrics and the EP-IR technology or to obtain a copy of the application note entitled "100 chemical pictures every second", please contact Aspectrics.
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