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首页> 外文会议>IFAC World Congress >Development of Method for Non-destructive Measurement of Nitrate Concentration in Vegetable Leaves by Near-infrared Spectroscopy
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Development of Method for Non-destructive Measurement of Nitrate Concentration in Vegetable Leaves by Near-infrared Spectroscopy

机译：近红外光谱法的植物叶片硝酸盐浓度的非破坏性测量方法的研制

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The purpose of this research is to develop a method for non-destructive measurement of nitrate concentration in vegetable leaves. Near-infrared (NIR) spectroscopy was adopted for the measurement. Spinach and komatsuna leaves were examined. Absorption spectra at small areas in the leaves were measured by a NIR spectrometer. The measured areas were cut away from the leaves and their nitrate concentrations were measured by a liquid chromatography analyzer. Mathematical models to estimate the nitrate concentration from the spectra were developed by PCR or PLS methods with a wavelength selection algorithm. As a result, the maximum coefficient of determination between the measured and estimated concentrations became more than 0.8.
机译：本研究的目的是开发一种用于植物叶中硝酸盐浓度的非破坏性测量方法。采用近红外（NIR）光谱进行测量。检查菠菜和小松叶。通过NIR光谱仪测量叶子中小区域的吸收光谱。将测量的区域从叶片切开，并通过液相色谱分析仪测量其硝酸盐浓度。通过PCR或PLS方法通过具有波长选择算法的PCR或PLS方法开发了估计来自光谱的硝酸盐浓度的数学模型。结果，测量和估计浓度之间的最大确定系数变得大于0.8。

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