Method for measuring content of to-be-measured substance in shrimp premix feed based on fluorescence spectrometry

Abstract

The invention discloses a method for measuring the content of a to-be-measured substance in a shrimp premix feed based on fluorescence spectrometry. The method comprises the following steps: respectively pressing a standard shrimp premixed feed sample with known content of a to-be-detected substance and a to-be-detected shrimp premixed feed sample with unknown content of the to-be-detected substance into a standard shrimp premixed feed slice sample and a to-be-detected shrimp premixed feed slice; setting measurement parameters, and establishing a correction curve of the element intensity and content of the to-be-measured substance by adopting an X-ray fluorescence spectrometry according to the standard shrimp premixed feed slice sample; measuring the content of the to-be-measured substanceof the to-be-measured shrimp premix feed slice by adopting the X-ray fluorescence spectrometry and based on the correction curve. According to the method for measuring the content of the to-be-measured substance in the shrimp premix feed based on the fluorescence spectrometry, the content of the to-be-measured substance in the shrimp premix feed can be accurately and rapidly measured, and operation is easy and convenient.

Description

technical field [0001] The invention relates to the technical field of rapid analysis, in particular to a method for measuring the content of analytes in shrimp premixed feed based on fluorescence spectroscopy. Background technique [0002] Feed additives refer to small or trace substances added in the process of feed processing, production, and use. They are the raw materials that must be used in the modern feed industry. They can strengthen the nutritional value of basic feed, improve animal production performance, ensure animal health, save feed costs, and improve The quality of livestock products has obvious effects; however, excessive addition of these elements will enrich the animal body, and when it exceeds a certain amount, it will cause heavy metal poisoning in the animal, leading to the decline of the physiological functions of various organs of the animal. What is more serious is that these elements Heavy metal elements enter the human body through the food chain ...

AI Technical Summary

Problems solved by technology

[0002] Feed additives refer to small or trace substances added in the process of feed processing, production, and use. They are the raw materials that must be used in the modern feed industry. They can strengthen the nutritional value of basic feed, improve animal production performance, ensure animal health, save feed costs, and improve The quality of livestock products has obvious effects; however, excessive addition of these elements will enrich the animal body, and when it exceeds a certain amount, it will cause heavy metal poisoning in the animal, leading to the decline of the physiological functions of various organs of the animal. What is more serious is that these elements Heavy metal elements enter the human body through the food chain, which will affect the health of the human body, so it is necessary to control the content of feed additives in the feed

[0003] At present, the testing methods for phosphorus and calcium in shrimp premixed feed are mainly atomic absorption method and inductively coupled plasma method; these methods require complex pretreatment methods, and the pretreatment lasts for several hours. On the one hand, a large amount of chemical reagents are consumed , causing certain pollution to the environment; on the other hand, chemical methods have high requirements for operators, require professional training, and have high labor costs, so it is necessary to find a method that can solve such problems

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