Equipment for detecting heavy metal ions in food

Abstract

The invention discloses equipment for detecting heavy metal ions in food. The equipment comprises a bottom plate, and a grinding assembly used for grinding the food is arranged above the bottom plate; the grinding assembly comprises a grinding box fixed to the top of the bottom plate through a support, a rotatable rotating shaft is arranged in the grinding box, an eccentrically-arranged gear is arranged at the bottom end of the rotating shaft, the bottom of the grinding box communicates with a vertical pipe, and a fixing rod is fixed to the inner bottom of the vertical pipe. A grinding disc is fixed to the top end, stretching into the grinding box, of the fixing rod, and a grinding disc making contact with the grinding disc is fixed to the bottom end of the gear. Food can be ground into powder, a color developing agent can be in full contact with the food powder after being added, so that heavy metal in the food reacts with the color developing agent more sufficiently, meanwhile, the ground food powder can be subjected to multi-part collection and color developing reaction, and the error of a detection result is further reduced through combination of the collection and the color developing reaction; and the detection result is more accurate.

Description

technical field [0001] The invention relates to the technical field of food detection, in particular to a detection device for heavy metal ions in food. Background technique [0002] Some additives are often added during food processing, and some heavy metals inevitably exist in the additives, such as common lead, arsenic, chromium, cadmium, mercury, cobalt, manganese, etc. Excessive intake of heavy metals can cause great harm to the human body. Among them, lead can directly damage human brain cells; arsenic is carcinogenic, and long-term exposure can easily lead to chronic poisoning; chromium can easily cause diarrhea, tuberculosis, bronchitis and dermatitis, etc.; Cadmium is mainly accumulated in the kidneys, which can easily lead to changes in the function of the urinary system; cobalt can cause radiation damage to the skin; mercury is a highly toxic substance, which can greatly damage nerves and vision; excessive manganese can cause hyperthyroidism and damage the human b...

AI Technical Summary

Problems solved by technology

Excessive intake of heavy metals can cause great harm to the human body. Among them, lead can directly damage human brain cells; arsenic is carcinogenic, and long-term exposure can easily lead to chronic poisoning; chromium can easily cause diarrhea, tuberculosis, bronchitis and dermatitis, etc.; Cadmium is mainly accumulated in the kidneys, which can easily lead to changes in the function of the urinary system; cobalt can cause radiation damage to the skin; mercury is a highly toxic substance, which can greatly damage nerves and vision; excessive manganese can cause hyperthyroidism and damage the human body. organ

[0003] Therefore, it is necessary to detect heavy metals in food, so that the content of heavy metals in food is within the safety standard. At present, the detection of heavy metals mainly uses the reaction between heavy metals and color reagents. When the color developer is dropped into the food, due to the uneven distribution of heavy metals in the food, it may not be able to completely contact with the heavy metals in the food, resulting in insufficient reaction and large errors in the results obtained

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