PRINCIPLE AND APPLICATION OF A PORTABLE NIR RICE WINE ANALYZER

Liyi Jiang, Huacai Chen, Bo Cai

Abstract

In this paper, a portable near-infrared spectroscopy (NIR) analyzer was developed with the semiconductor refrigerating InGaAs array near-infrared spectrometer. A constant temperature transmission cell sample was designed, and the spectral analysis software was developed, and the calibrtion models were established for the analyzer. Take the 54 rice wine samples as the main detected objective, the calibration models of alcohol and non-sugar solids in the rice wine were built with the pretreatment of 2nd derivative and 1st derivative. The R2 is 99.94% for alcohol and 99.29% for non-sugar solids; the root mean squared error of prediction (RMSEP) is 0.259% for alcohol and 0.0134% for non-sugar solids; the relative standard deviation (RSD) are respectively 2.194% and 3.396%. It suggested that the portable NIR rice wine analyzer could be a fast and reliable alternative for rice wine quality testing.

Keywords

Portable NIR analyzer, constant temperature, calibration models, real-time analysis, rice wine

Download

IMEKO-TC2-2010-27.doc

DOI

-

IMEKO TC

TC2 - Photonics

Back to the proceedings