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Product category: Liquid Analysis: Spectroscopy, Colour
News Release from: Aspectrics | Subject: MC2750 EP-NIR
Edited by the Processingtalk Editorial Team on 06 September 2007

Edible oil identification using EP-NIR
analyser

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A new application note from Aspectrics demonstrates that the pioneering EP-NIR analyser achieves precise identification and quantification of edible oils without any false positive response

Aspectrics, the innovator of patented Encoded Photometric Infrared (EP-IR) and Near Infrared (EP-NIR) spectroscopy, introduces a new application note to demonstrate the ability of its innovative MultiComponent 2750 EP-NIR analyser to achieve unequivocal identification of three different types of edible vegetable oils, without false positive response Coupled to an external Aspectrics halogen NIR source and a Specac 2mm pathlength process transmission multimode fibre probe, the groundbreaking analyser allows access to impressive spectral information in the 2000-2600nm range

This new Aspectrics application note is available to download free-of-charge from the website: entitled "Identification of Various Types of Edible Oils Using an Aspectrics MC2750 EP-NIR Spectrometer", it shows that the analyser can precisely identify each type of edible oil, which have respective chemical compositions extremely close to each other, and also that the model was solid enough to prevent even partial false positive responses.

Results demonstrated that when projecting the EP-NIR analyser response in a space designed to identify a type of oil, not only all oil spectra are plotted within the 99% probability space of "100% probability of being the specific type of oil", but also that the remaining oil samples are plotted within the 99% probability space of "0% probability of being the specific type of oil".

All spectra were collected using the Aspectrics RTSS Chemometrics software package.

Data collection parameters were 30-second time integration.

All samples were analysed in four and three replicates respectively, recollecting a new background between each assay.

Data treatment consisted of calculating absorbance spectra using open beam configuration as a background, calculating the second order derivative for each absorbance spectrum and developing Principal Component Analysis (PCA) and Principal Component Regression (PCR) based methods for the identification and measurement of each type of oil.

Aspectrics EP-NIR analysers offer a more efficient alternative to traditional NIR systems, with a spectral range extending further than the common 2100nm and achieving a range of 1375-2750nm.

The patented Encoder Disk technology provides ultra fast sampling capability (100Hz) for multi component analysis in a process rugged design to meet the demand for the process monitoring industry as well as the food and beverage industry.

For a copy of the Aspectrics MultiComponent 2750 EP-NIR analyser application note, please contact Aspectrics, or use the Processingtalk Reader Response Service.

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