Automatic filter with integrated control function

Abstract

The invention relates to an automatic filter, is particularly applicable to partial collection of filtrates, belongs to the technical field of extraction and filtration in flow analysis and discloses an automatic filter with an integrated control function. Extracts of the filter are poured into funnels to be filtered, first few drops are discharged into test tube stands provided with waste liquid grooves along inclined guide troughs, built-in controllers are connected with built-in solenoid valves as well as control and push built-in cylinders connected with the inclined guide troughs, the inclined guide troughs leave original positions, filtrates continuously drop into sample collecting tubes, after the liquid level reaches sensing positions of liquid level sensors, signals are transmitted to the built-in controllers, the built-in controllers control the cylinders to move and return to the original positions through the built-in solenoid valves, and finally, residual filtrates are discharged into the test tube stands provided with the waste liquid grooves along the inclined guide troughs. The device overcomes the defects of longer preparation time, excessive manual and process operation, low detection efficiency and the like at present.

Description

technical field [0001] The invention relates to an automatic filter, which is especially suitable for partial collection of filtrate and belongs to the technical field of extraction and filtration in flow analysis. Background technique [0002] At present, my country's tobacco industry standard adopts the continuous flow method to determine the total sugar and reducing sugar, total plant alkaloids, chlorine, potassium and other chemical components in tobacco. In the pretreatment step, the sample extract needs to remove the waste liquid first, collect the filtrate, and finally pour it into the sampling tube for analysis. When measuring total sugars and reducing sugars, the test results are greatly affected by the storage time after sample preparation, and must be completed within 24 hours. Therefore, in order to ensure the accuracy of sample detection, it is best to analyze on the same day of preparation. Due to the problems of many steps and repetitive operations in the pre...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an automatic filter with integrated control, which combines the three steps of waste liquid removal, filtrate collection, and quantitative control in the sample preparation process into a set of collection modules, and then integrates each collection module in one device to achieve Automated control to solve the current shortcomings of long preparation time, excessive human and process operations, low detection efficiency, and high detection cost

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