Development of a near-infrared spectroscopy method (NIRS) for fast analysis of total, indolic, aliphatic and individual glucosinolates in new bred open pollinating genotypes of broccoli ( Brassica oleracea convar. botrytis var. italica )

2017 ◽  
Vol 232 ◽  
pp. 272-277 ◽  
Author(s):  
Samira Sahamishirazi ◽  
Sabine Zikeli ◽  
Michael Fleck ◽  
Wilhelm Claupein ◽  
Simone Graeff-Hoenninger
2019 ◽  
Vol 27 (4) ◽  
pp. 286-292
Author(s):  
Chongchong She ◽  
Min Li ◽  
Yunhui Hou ◽  
Lizhen Chen ◽  
Jianlong Wang ◽  
...  

The solidification point is a key quality parameter for 2,4,6-trinitrotoluene (TNT). The traditional solidification point measurement method of TNT is complicated, dangerous, not environmentally friendly and time-consuming. Near infrared spectroscopy (NIR) analysis technology has been applied successfully in the chemical, petroleum, food, and agriculture sectors owing to its characteristics of fast analysis, no damage to the sample and online application. The purpose of this study was to study near infrared spectroscopy combined with chemometric methods to develop a fast and accurate quantitative analysis method for the solidification point of TNT. The model constructed using PLS regression was successful in predicting the solidification point of TNT ([Formula: see text] = 0.999, RMSECV = 0.19, RPDCa = 33.5, [Formula: see text] = 0.19, [Formula: see text] = 0.999). Principal component analysis shows that the model could identify samples from different reactors. The results clearly demonstrate that the solidification point can be measured in a short time by NIR spectroscopy without any pretreatment for the sample and skilled laboratory personnel.


Energy ◽  
2017 ◽  
Vol 118 ◽  
pp. 1353-1360 ◽  
Author(s):  
Ke Zhang ◽  
Ling Zhou ◽  
Michael Brady ◽  
Feng Xu ◽  
Jianming Yu ◽  
...  

2007 ◽  
Vol 156 (3) ◽  
pp. 199-208 ◽  
Author(s):  
Senichiro Kikuchi ◽  
Kazuhiko Iwata ◽  
Yasunori Onishi ◽  
Fumio Kubota ◽  
Koichi Nisijima ◽  
...  

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