Method for detecting tobacco leaf chemical ingredient adopting near infrared light
A technology of chemical composition and near-infrared light, which is applied in the direction of material analysis, color/spectral characteristic measurement, and measuring device through optical means, which can solve the problems of high cost and long cycle, and achieve fast and accurate analysis, and the method is simple and easy , the effect of fast technical data support
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Embodiment 1
[0030] First, the whole tobacco leaf is laid flat, and the near-infrared instrument takes three triangular distribution points on the upper part of the tobacco leaf, three triangular distribution points on the lower part of the tobacco leaf, and five diamond-shaped points on the middle part of the tobacco leaf; the near-infrared instrument will The components of the collected tobacco leaves include nicotine, total sugar, reducing sugar, total nitrogen, volatile alkali, potassium and chlorine to form their own near-infrared spectra; the near-infrared spectra of each component were established with the components of tobacco leaves detected by conventional techniques Mathematical model, forming a mathematical model for near-infrared analysis of tobacco leaves, and storing it in the memory; when purchasing on-site, use a near-infrared instrument to divide the flattened tobacco leaf into three parts, and the upper part is taken as a triangle with three points , the lower part is tak...
Embodiment 2
[0032] In this embodiment, when tobacco leaves are taken, as figure 2 As shown, sampling is carried out in the manner of taking three points of a triangle at the upper part, three points of a triangle at the lower part, and four vertices of a rhombus at the middle part, and the other methods are the same as in the first embodiment.
Embodiment 3
[0034] In this embodiment, when tobacco leaves are taken, as image 3 As shown, sampling is performed in the manner of taking three triangular points at the upper part, three triangular points at the lower part, and arbitrarily taking three points at the middle part, and the other methods are the same as in Embodiment 1.
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