Multi-channel portable sulfur dioxide extraction device

Abstract

The invention discloses a multichannel portable sulfur dioxide extracting device comprising a base, at least two extracting units and a circuit control and display unit, wherein each extracting unit comprises a heating module, a distillation module, a cooling module and a receiving module. According to the invention, traditional scattered devices such as a heating device, a distillation device, a cooling device and a collecting device are integrated, the amount of the extracting units in the device can be determined as required, a plurality of batches of samples can be simultaneously measured and extracted at one step, and the multichannel portable sulfur dioxide extracting device has the advantages of compact structure, attractive and elegant appearance, simplicity and convenience in operation, high efficiency, intelligence and the like. The problem that current devices are scattered and irregular and are capable of extracting one sample every time is well solved, the work efficiency is greatly increased, and the multichannel portable sulfur dioxide extracting device has good application prospect on the aspects of extracting and detecting sulfur dioxide in foods.

Description

technical field [0001] The invention belongs to the field of food safety detection, in particular to a multi-channel portable sulfur dioxide extraction device. Background technique [0002] Sulfur fumigation or sulfite soaking is a common method used by unscrupulous traders to make counterfeit goods, mainly used in various dry goods such as bamboo shoots, white fungus, dried fish, as well as food such as steamed buns and steamed buns. Sulfur dioxide has bleaching and bactericidal effects, which can make the processed food brighter, prevent it from spoiling, and prolong its shelf life. However, sulfur fumigated or sulfite-soaked foods may have compositional changes due to the reduction of sulfur dioxide. Long-term consumption of such foods will lead to the accumulation of sulfite in the human body, and sulfite will form after entering the stomach. Sulfuric acid will not only destroy vitamin B1 in the human body. Sulfur contains a large amount of heavy metal elements, which ...

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Problems solved by technology

[0009] The main purpose of the present invention is to overcome the shortcomings of the prior art that the extraction device is loose, non-standard, and can only extract a single sample each time, and provide a multi-channel portable sulfur dioxide extraction device, which has a compact structure and is easy to operate, and can perform multiple sets of extractions simultaneously. Extraction of samples

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