Detection method for heavy metal content in bean product raw materials

A detection method and heavy metal technology are applied in the field of heavy metal content detection of raw materials of soy products, which can solve the problems of operator safety threat and foaming, and achieve the effect of shortening the digestion time and increasing the contact area.

Active Publication Date: 2019-01-08
贵州省三好食品开发有限公司
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Problems solved by technology

[0005] The invention provides a detection method for the heavy metal content of soybean product raw materials to solve the problem that in the existing heavy metal detection method, the digestion solution is directly added to the sample, resulting in serious foaming, which poses a great threat to the safety of operators

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  • Detection method for heavy metal content in bean product raw materials
  • Detection method for heavy metal content in bean product raw materials

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Embodiment

[0031] A method for detecting heavy metal content in soybean product raw materials, the method includes the following four steps:

[0032] A. Grinding: Randomly take 100 g of samples from the raw materials of soybean products. In this example, the raw materials of soybean products are soybeans. Wash and dry the sample soybeans and put them into a grinder for grinding. Take out the powder, put it into a sieving machine for sieving treatment, sieve out the large particle powder that may be incompletely ground in the soybean powder, and then weigh the soybean powder after the sieving; after the soybean powder in the grinder is taken out , continue to start the grinder, and at the same time pass clean water into the grinder, clean the soybean powder remaining in the grinder, then shut down, place the grinder in a ventilated place, and let the inside dry naturally.

[0033] B. Preparation of sample solution: Pour 2L of deionized water into the sample mixing equipment, put the soybe...

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Abstract

The invention relates to the technical field of processing of bean products, and specifically discloses a detection method for heavy metal content in bean product raw materials. The detection method comprises the following steps: performing crushing: taking 100 g of samples, and grinding the taken samples into sample powder for standby application; preparing a sample liquid: adding 2 L of clean water to sample mixing equipment, thoroughly mixing the sample powder with the clean water to obtain the sample liquid, and performing heating for 1 h to obtain a high-concentration sample liquid; decomposing the samples: preparing decomposing liquid, pouring the prepared decomposing liquid into a beaker, and heating the beaker for 2 h so as to obtain decomposed samples; performing detection: addinga hydrochloric acid liquid to the decomposed samples, adding clean water for settling volume, and detecting the samples through a heavy metal detector, so that the content of heavy metal in the samples can be determined. Through the adoption of the detection method disclosed by the invention, the problem of massive foaming in the decomposing course can be solved.

Description

technical field [0001] The invention relates to the technical field of bean product processing, in particular to a method for detecting heavy metal content of bean product raw materials. Background technique [0002] Heavy metal pollution has great harm of carcinogenic, teratogenic and mutagenic. Around the world, almost every country and region that has experienced industrialization has experienced heavy metal pollution to varying degrees, and because of the cumulative effect, many major hazards caused by heavy metal pollution have caused serious damage to the ecological environment and the lives and health of local residents. great harm. [0003] At present, due to the rapid development of industry in my country, a large amount of industrial waste gas, waste water and waste residues containing heavy metals are discharged, which makes the heavy metal pollution situation in our country more and more serious. produce greater toxicity. In order to ensure the quality of the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/02
CPCG01N33/02
Inventor 吴国政
Owner 贵州省三好食品开发有限公司
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