Aquaculture water quality total nitrogen content detection method based on spectrum technique

Abstract

The invention provides an aquaculture water quality total nitrogen content detection method based on a spectrum technique. The method comprises the following steps: acquiring original spectrum data, wherein the original spectrum data comprises water quality spectrum data of each water quality sample and a real total nitrogen content value of each water quality sample, and the water quality spectrum data of each water quality sample represents the absorbancy of each water quality sample within a preset wavelength range; by using an uninformative variable elimination method and a continuous projection algorithm, screening the original spectrum data so as to obtain spectrum characteristic data; by using a least squares support vector machine, modeling the spectrum characteristic data so as toobtain a detection model, and by using a detection model, acquiring a total nitrogen content detection value of a water quality sample to be detected. The invention provides the aquaculture water quality total nitrogen content detection method based on the spectrum technique, a sample does not need pretreatment, chemical reagents are not needed, and the method is a rapid, low-cost and nondestructive analysis green detection technique and has advancement and environmental-friendliness when being compared with a conventional method.

Description

technical field [0001] The invention relates to the field of water quality detection, in particular to a method for detecting the total nitrogen content of aquaculture water quality based on spectral technology. Background technique [0002] With the development of social economy, people's dietary structure is also gradually adjusted, and aquatic products have won the favor of more and more people because of their low fat content, rich and balanced nutritional value, and easy absorption, and have become a part of people's daily life. an indispensable part of the. However, due to the over-exploitation and utilization of marine fishery resources, natural aquatic resources can no longer meet people's living needs. As the proportion of artificial aquaculture increases year by year, this shortage of supply has been alleviated to a large extent. When New China was first established, the total output of aquaculture in my country was only 110,000 tons. With the development of my ...

AI Technical Summary

Problems solved by technology

The traditional alkaline potassium persulfate-ultraviolet spectrophotometric method for measuring the total nitrogen content of water quality can only measure

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