CAJ | 학술논문

目的：采用便携式激光拉曼光谱仪,建立激光拉曼光谱对橄榄油进行快速鉴别的方法。方法对橄榄油样品进行光谱扫描及基线校正后,以1440 cm-1作为参考波数,对拉曼光谱数据进行归一化处理。结果对80余份橄榄油样品进行统计分析,发现75%的样品在1265 cm-1的拉曼光谱强度值低于540。特级初榨橄榄油中掺加果渣油,会使1265 cm-1和1650 cm-1的特征峰增强,1525 cm-1处的精细结构变小直至消失。结论拉曼光谱具有便捷、快速、无损分析的特点,可作为橄榄油真伪鉴别在线初步筛查的工具。
목적：채용편휴식격광랍만광보의,건립격광랍만광보대감람유진행쾌속감별적방법。방법대감람유양품진행광보소묘급기선교정후,이1440 cm-1작위삼고파수,대랍만광보수거진행귀일화처리。결과대80여빈감람유양품진행통계분석,발현75%적양품재1265 cm-1적랍만광보강도치저우540。특급초자감람유중참가과사유,회사1265 cm-1화1650 cm-1적특정봉증강,1525 cm-1처적정세결구변소직지소실。결론랍만광보구유편첩、쾌속、무손분석적특점,가작위감람유진위감별재선초보사사적공구。
ABSTRACT:Objective To establish a rapid method for the determination of adulterated olive oil by Raman spectroscopy using portable laser Raman spectrometry.Methods The Raman spectrum of olive oil samples were obtained after baseline subtracting. The peak at 1440 cm-1 was exploited as an internal standard band, and the spectrum was normalized.ResultsBy the statistical analysis of more than 80 olive oil samples, 75% of the sam-ples were lower than 540 at 1265 cm-1. When the olive-pomace oil was added to virgin olive oil, the intensity of peaks at 1265 cm-1 and 1650 cm-1 increased, meanwhile the peak at 1525 cm-1 disappeared.Conclusion The Raman spectrometry is portable, rapid, and nondestructive, which can be used as an on-site detection tool for olive oil adulteration determination.