Quick detector for quality and safety of tea

A quality safety and testing instrument technology, applied in instruments, measuring devices, scientific instruments, etc., can solve the problems of expensive instruments, high price, low detection accuracy, etc., and achieve high automation, easy operation, and good intuition.
CN101644667AInactive Publication Date: 2010-02-10CHANGCHUN JILIN UNIV LITTLE SWAN INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGCHUN JILIN UNIV LITTLE SWAN INSTR
Publication Date
2010-02-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a quick detector for quality and safety of tea. The detector is provided with a machine shell of which the upper surface is provided with a color comparison cuvette cover. Thedetector is characterized in that: a transmission type color comparison cuvette and a reflection type color comparison cuvette are arranged side by side under the color comparison cuvette cover of themachine shell; the transmission type color comparison cuvette is a rectangular tank body, one side surface of the tank body is provided with a light source / monochromator, and the other opposite sidesurface is provided with a photoelectric detector; and the reflection type color comparison cuvette is a cuboid of which the inside is provided with three T-shaped channel holes, channel openings of two side channel holes are provided with a light source / monochromator respectively, the lower part channel opening of the middle channel hole is provided with a photoelectric detector, and the lower part channel opening of the middle channel hole is provided with a chromatographic plate. The detector can be used for quickly and quantitatively detecting the contents of heavy metal and pesticide in tea in field and quickly detect the quality safety of tea in field.
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Description

technical field

[0001] The invention relates to a simple, sensitive and rapid on-site rapid detection instrument for tea quality safety, in particular to a rapid on-site rapid quantitative detection of heavy metal and pesticide content in tea. Background technique

[0002] my country is the origin of tea trees, and tea trees first appeared in the Yunnan-Guizhou Plateau and Xishuangbanna area in southwest my country. The main varieties of tea are green tea, black tea, oolong tea, scented tea, white tea and yellow tea. Tea has the medicinal effect of keeping fit and curing diseases, and it is also full of appreciation, which can cultivate sentiment. Taking tea as a drink has changed people's bad habit of drinking raw water and greatly improved people's health.

[0003] After modern scientific separation and identification, tea contains more than 450 kinds of organic chemical components and more than 40 kinds of inorganic mineral elements. The organic chemical components and...

Claims

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