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Near Infrared Spectroscopy

 

WHAT CAN CI SCIENTIFIC DO?

CI Scientific can help you to choose the right NIR according to your application. The company is an agent of Zeutec GmbH for selling and servicing the NIR in Australiasian region. The company can also help you to perform annual service and calibration on NIRs.

WHAT IT IS?

Near Infrared (NIR) analysis is a spectroscopic technique that makes use of the naturally occurring electromagnetic spectrum from 700nm to 2500nm. NIR spectra analyser uses this spectroscopy technique to analyse the results depending on the output and input wavelength. Incandescent or Quartz halogen light bulbs are most common used light source to generate infrared radiation for analytical application. Depending on wavelength to be measured, types of detector device is selected. Silicon based CCDs are suitable for shorter end of NIR range where as InGaAs and PbS devices are more suitable for range over 1000nm.

WHAT IS IT USED FOR?

Typical applications of NIR spectroscopy include the analysis of food products, pharmaceuticals, combustion products, and a major branch of astronomical spectroscopy. The state of product can be liquid, powder, paste or solid. It is also used for determining the quality of forages, grains, and grain products, oilseeds, coffee, tea, spices, fruits, vegetables, sugarcane, beverages, fats, and oils, dairy products, eggs, meat, and other agricultural products. It is widely used to quantify the composition of agricultural products because it meets the criteria of being accurate, reliable, rapid, non-destructive, and inexpensive. Most common measuring parameters are moisture, protein, fat, sugar, starch, acidity, salt, ash, alcohol, etc.

WHY IS IT IMPORTANT TO BE CALIBRATED?

As NIR spectra analyser is secondary method of quality control, it needs predefined data and analysed results as a primary reference. Every time when reference samples are changed, it is important to create a new calibration data base or update the existing calibration database with new samples. It is also recommended to update calibration data base every 6 months or annually.