基于激光诱导击穿光谱的油菜籽含油量测定研究
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摘要
分析了Al_2O_3及其含油后的激光诱导击穿光谱,选择388.2 nm的谱线作为含油量分析线。通过测量5种油菜籽的含油量及激光诱导击穿光谱,建立了谱线强度与含油量之间的定标曲线y=264.17x-10 077.16,其相关系数R~2为0.982,检测限为0.096%。结果表明,利用激光诱导击穿光谱测量油菜籽含油量是可行的。
The 388.2 nm spectral line was selected as the analysis line based on the analysis of laser induced breakdown spectroscopy of Al_2O_3 and its samples containing rapeseed oil. The calibration curve between spectral intensity and oil content was established by measuring the oil content of 5 rapeseed and its laser induced breakdown spectroscopy. The calibration curve was y=264.17 x-10 077.16. The correlation coefficient R~2 was 0.982 and the detection limit was 0.096%. The results showed that the laser induced breakdown spectroscopy measurement of rapeseed oil content was feasible.
The 388.2 nm spectral line was selected as the analysis line based on the analysis of laser induced breakdown spectroscopy of Al_2O_3 and its samples containing rapeseed oil. The calibration curve between spectral intensity and oil content was established by measuring the oil content of 5 rapeseed and its laser induced breakdown spectroscopy. The calibration curve was y=264.17 x-10 077.16. The correlation coefficient R~2 was 0.982 and the detection limit was 0.096%. The results showed that the laser induced breakdown spectroscopy measurement of rapeseed oil content was feasible.
引文
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[2]尤梦圆,苏宇辰,王凤香,等.滤袋法测定油料及粕含油量的研究[J].中国油脂,2016,41(10):106-108.
[3]余乐,李琦,吴莉莉,等.粗脂肪自动测定仪与残余法快速测定菜籽含油量[J].粮食科技与经济,2016,41(5):35-38.
[4]蔡坚,刘喻娟,张应中,等.核磁共振法测定高州油茶种仁含油率试验[J].林业科技开发,2013,27(3):92-95.
[5]金华丽,崔彬彬.花生种子含油量近红外测定模型建立[J].粮食与油脂,2014,27(9):49-51.
[6]陶书中,王卫兵,孙铁波.脉冲核磁共振含油量检测仪控制系统设计[J].机电技术,2016(5):49-51.
[7]金华丽,崔彬彬.花生种子含油量近红外测定模型建立[J].粮食与油脂,2014,27(9):49-51.
[8]高建芹,张洁夫,浦惠明,等.近红外光谱法在测定油菜籽含油量及脂肪酸组成中的应用[J].江苏农业学报,2007,23(3):189-195.
[9]商连光,李军会,王玉美,等.棉籽油分含量近红外无损检测分析模型与应用[J].光谱学与光谱分析,2015,35(3):609-612.
[10]PASQUINI C,CORTEZ J,LUCAS M C,et al.Laser induced breakdown spectroscopy[J].Journal of the Brazil Chemical Society,2007,18(3):463-512.
[11]RIBEIRO V P,ARNON R R,AURELIO M F M,et al.Laserinduced breakdown spectroscopy to determine soil texture:A fast analytical technique[J].Geoderma,2016,263:195-202.
[12]ARNAB S,VIJAY K,SURESH K A,et al.Evaluation of the prediction precision capability of partial least squares regression approach for analysis of high alloy steel by laser induced breakdown spectroscopy[J].Spectrochimica Acta-Part B Atomic Spectroscopy,2015,108:8-14.
[13]LI X W,YIN H L,WANG Z,et al.Quantitative carbon analysis in coal by combining data processing and spatial confi nement in laserinduced breakdown spectroscopy[J].Spectrochimica Acta-Part B Atomic Spectroscopy,2015,111:102-107.