Determination pre-treatment device and method for fat-soluble vitamin sample in infant milk powder

Abstract

The invention provides a determination pre-treatment device and method for a fat-soluble vitamin sample in infant milk powder. The device comprises a sealed box body, wherein a bottom plate of the sealed box body is connected with a light shielding sleeve; the light shielding sleeve is internally provided with a centrifugal pipe with a plug; the centrifugal pipe with the plug is provided with an internally-arranged sample; an opening ground plug is arranged at the opening end of the centrifugal pipe with the plug; the light shielding sleeve is in sealed connection with the bottom plate of the box body; the bottom plate of the box body, at the lower part of the light shielding sleeve, is provided with a water inlet hole for communicating an inner cavity of the light shielding sleeve and the outer part of the sealed box body; an N2 inlet is formed in one end of the sealed box body. The treatment method finished by the device comprises the step of forming the N2 inlet in the sealed box body so that the requirements of light shielding and oxygen-free environments can be met; the content and quality of vitamins in the infant formula milk powder are guaranteed; the treatment method can be used for the pre-treatment of the fat-soluble vitamins in the infant milk powder, and oxygen-free environment reaction or the pre-treatment method can be suitable for the device; and the application range is enlarged, a plurality of samples can be treated at the same time and the pre-treatment speed is increased.

Description

technical field [0001] The invention belongs to the technical field of dairy product detection, and in particular relates to a pre-processing device and method for the determination of fat-soluble vitamin samples in infant milk powder. Background technique [0002] Vitamins are low-molecular organic compounds that are indispensable for maintaining normal substance metabolism and certain special physiological functions of the human body. They are mainly involved in the composition of various enzymes. Because of their different structures and physical and chemical properties, they have special physiological functions. There are many kinds of vitamins, which have no commonality in chemical structure. According to their physical properties, they can be divided into two categories, namely fat-soluble vitamins and water-soluble vitamins. Fat-soluble vitamins include vitamin A, vitamin D, vitamin E, and vitamin K. They only contain three elements: carbon, hydrogen and oxygen, and ...

AI Technical Summary

Problems solved by technology

In the common pretreatment for the determination of fat-soluble vitamins in milk powder samples, there is often a lack of protection from light, N 2 Protection and other steps; or although there is such a step, the device is simple and the introduction is unknown

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