Abstract: Spectral analysis technology is constantly improving, and its application fields are gradually widening. NEC has developed a brand-new spectral analysis technology that breaks through the limitations of the weather for the first time. It can be applied to large-scale observations even on cloudy days with poor lighting. It can be seen that the global scale of ecological observations to protect biodiversity will play a great role.

Application of Spectral Analysis Technology in Tea Near-infrared spectroscopy analysis technology has been successfully applied to the analysis and determination of products in many industries such as food, tobacco, pharmaceuticals and chemicals in recent years, especially in the analysis of the quality of agricultural and sideline products. The advantages of stove theory, non-destructive and multi-component simultaneous quantitative analysis are more widely used. As early as the 1970s, Japan has applied near-infrared spectroscopy to quantitative analysis of various components of tea, such as quantitative analysis of tea polyphenols, caffeine, total nitrogen, crude fiber, etc., and achieved good results. Domestic application of near infrared spectroscopy to determine the composition of tea has also been reported, but it is limited to the traditional research stage of multiple regression equations that use a specific wavelength to determine a certain composition.

At present, with the rapid development of chemometrics and computer technology, near infrared spectroscopy infrared spectroscopy has turned to the stage based on the analysis of weak signals and multi-component multi-component information processing. Especially with the application of Fourier transform in the near infrared spectrometer in the 1980s, the luminous flux is increased, the signal-to-noise ratio is improved, and the resulting spectral line is smoothed, so that the near infrared technology is effectively applied to the high-precision and rapid analysis of a large number of samples. In this paper, the FT-NIR spectrometer (IFS28 / N type) of Bruker company in Germany and the OPUSQUANT-2 quantitative and IDENT qualitative analysis software distributed randomly are used to scan and analyze the near-infrared spectra of tea plants (leaves), tea leaves and tea products.

New Spectral Analysis Technology Developed Recently, NEC announced the development of a new spectroscopic analysis technology that broke through the limitations of the weather for the first time in the world. Even on cloudy days with poor lighting, it can also be applied to large-scale observation ranges, such as Observe the growth of plants in the forest hinterland that is difficult for humans to enter.

Spectral analysis technology is to grasp the material and status of objects that cannot be recognized by the naked eye through the analysis of the reflected waves of the object. It can be applied to wide-area ground and ocean observations, such as man and ship search and rescue during tsunami, large-scale agricultural observation, and biological protection. Diversified global-scale ecological observations and resource surveys. However, the previous spectral analysis was achieved by installing a camera on the aircraft, and the correct observation information can be obtained only when the weather is sunny, and at the same time, a spectral reference similar to a white plate needs to be placed near the observation object Thing, so it has been greatly restricted in practical applications.

The latest spectral analysis technology developed by NEC is able to break through the influence of weather on observations for the first time in the world by converging all daylight wavelengths (300nm ～ 4000nm) from sunny to cloudy, no matter whether it is sunny or cloudy, it can be accurately obtained from the spectrum 3. Stably infer the surface reflection information such as the material and state of the object. Compared with the previous technology, the inference error can be reduced by 70%, which greatly improves the accuracy of observation.

National standards for spectrometer analysis methods have been released recently. The National Standards Implementation Notice issued by the National Standardization Management Committee shows that a number of national standards for spectrometer analysis methods have been released and will be implemented in early 2014.

This batch of analysis methods mainly focuses on molybdenum chemical analysis methods. The instruments involved include atomic absorption, atomic fluorescence, and inductively coupled plasma atomic emission spectroscopy, which basically replace the relevant standards of the 1980s.

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