CN2468040Y

CN2468040Y - Pesticide residue poison fast detecting instrument

Info

Publication number: CN2468040Y
Application number: CN 01218292
Authority: CN
Inventors: 查显才; 高晓辉; 李海昌
Original assignee: MINISTRY OF AGRICULTURE PESTICIDE TEST STATION
Current assignee: MINISTRY OF AGRICULTURE PESTICIDE TEST STATION
Priority date: 2001-03-29
Filing date: 2001-03-29
Publication date: 2001-12-26
Anticipated expiration: 2011-03-29

Abstract

The utility model relates to an analyzing and detecting instrument, particularly a detecting instrument which can analyze and detect pesticide residue poison which is residual on agricultural products of vegetables, fruits, etc., with a biochemistry method. The detecting instrument comprises a power supply and is characterized in that a light source 3 filters light through a monochromator 4, a sample chamber 5 is arranged between the monochromator 4 and a receiver 6, and the receiver is controlled by a controller 7. The converted digital signal is sent to the controller to carry out the analysis processing, and a detection result is output by a printer through a display connected with the controller. The utility model has the advantages of very convenient, quick and accurate detection, simple structure, and easy operation.

Description

Residual toxicity of pesticide

The utility model relates to a kind of analysis and detecting instrument, particularly relates to a kind of biochemical method that utilizes and carries out the detecting instrument of analyzing and testing to remaining in residual toxicity on the agricultural product such as vegetables, fruit.

Because the high speed development of agricultural chemicals scientific and technological level uses agricultural chemicals more and more in the production run of agricultural product such as vegetables, fruit, reasonably use agricultural chemicals to help the growth and the raising output of agricultural product.But being extensive use of of agricultural chemicals, and against regulation abuse make many agricultural product that have residual toxicity enter vegetables, fruit consumption market, and then lay out people's dining table, the serious threat people's life security.For the consumer's that adequately protects interests, must the agricultural product that use agricultural chemicals be detected, guarantee that it meets the health food sanitation standard.Deficiencies such as existing this type of pick-up unit exists that volume is big, complex structure, operation inconvenience, detection time are long, thereby be difficult to be promoted the use of widely.

At above-mentioned the deficiencies in the prior art, the purpose of this utility model provides a kind of simple and reasonable, and volume is little, in light weight, easy and simple to handle, especially can realize the residual pesticides analyzer device of fast detecting.

Realize that the above-mentioned purpose technical scheme is: this residual toxicity of pesticide, comprise power supply, it is characterized in that: light source 3 filters through monochromator 4, between monochromator 4 and receiver 6, be provided with sample chamber 5, receiver is accepted controller 7 controls, and give controller the digital signal of conversion and carry out analyzing and processing, by display, the printer output testing result that links to each other with controller.

Owing to adopted technique scheme, make that to carry out analyzing and testing very convenient quick and accurately to remaining in residual toxicity on the agricultural product such as vegetables, fruit, and this apparatus structure is simple, easy operating, economical and practical.

Below in conjunction with accompanying drawing embodiment of the present utility model is described further.

Fig. 1 is a theory diagram of the present utility model.

Fig. 2 is the physical circuit figure of controller.

Fig. 3 is the physical circuit figure of the relevant auxiliary circuit of the utility model.

Fig. 4 is each component locations figure of the present utility model.

Fig. 5 is the structural representation of sample chamber.

Seeing also Fig. 1 the utility model mainly is to adopt tungsten lamp to do light source 3, and the light that tungsten lamp sends filters through monochromator 4, and the light after filtering is the light source of specific wavelength.Light source is taken a sample through sample chamber 5 pairs of liquid samples of being prepared (as micro-vegetables or fruit etc.) more afterwards, convert light signal to electric signal by receiver 6, and then convert digital signal to, give controller 7 and carry out analyzing and processing, the circuit of controller is seen Fig. 2, controller 7 is the automatic control circuit of band CPU, after controller calculates by analysis testing result is exported, thereby active data is directly exported to the user by display 9, printer 10.In measuring process, thereby controller 7 also wants control step motor 11 to finish the robotization of measurement, and can improve the accuracy of measurement and reduce artificial operate miss.8 is operation keyboard among Fig. 1.The power supply 2 of this instrument is directly to get final product with 220V civil power 1, power supply processing circuit as shown in Figure 3A, it provides instrument required various power supplys.In addition, this instrument also leaves the RS232 serial line interface for special user provides service, is used for expansion, as linking to each other with PC 12.Fig. 3 B is the front panel circuit theory diagrams, and Fig. 3 C is the display circuit schematic diagram, and Fig. 3 D is optocoupler plate circuit theory diagrams.Circuit shown in Figure 3 is conventional ic circuit, can reproduce the utility model according to this circuit diagram.

See also Fig. 4, this instrument in housing each position component roughly be, be provided with monochromator between tungsten lamp and the sample chamber, in the sample chamber, also have optocoupler plate, motor and receiver, receiver links to each other with control panel by front panel, on control panel, except that controller, also be provided with printer, digital display board and RS232 serial line interface.In order to save the space, power panel and transformer are arranged on the both sides of monochromator.

See also Fig. 5, the alleged sample of this paper is agricultural product such as vegetables, fruit to be got trace make liquid sample according to the rules and place in the glass container.Structure as shown in Figure 5 can be made in above-mentioned sample chamber 5, be provided with monochromator 4 and receiver 6 in the both sides of sample chamber, central authorities are sample cell (built-in sample and blank samples), in order to realize the purpose of fast detecting, sample cell 13 can be a plurality of, and be provided with slide rail 14 in the sample cell lower end, controller moves by stepper motor 11 control sample cells 12, thereby finishes the robotization of measurement.

The foregoing description only is a specific implementation of the present utility model, and any residual toxicity of pesticide of designing with the technical solution of the utility model all should belong to protection domain of the present utility model.

Claims

1, a kind of residual toxicity of pesticide, comprise power supply, it is characterized in that: light source (3) filters through monochromator (4), between monochromator (4) and receiver (6), be provided with sample chamber (5), receiver is accepted controller (7) control, and give controller the digital signal of conversion and carry out analyzing and processing, by display, the printer output testing result that links to each other with controller.

2, residual toxicity of pesticide according to claim 1 is characterized in that: described light source (3) adopts tungsten lamp.

3, residual toxicity of pesticide according to claim 1 is characterized in that: described controller (7) is the automatic control circuit of band CPU.

4, according to claim 1,2 or 3 described residual toxicity of pesticide, it is characterized in that: described controller (7) also leaves the RS232 serial line interface.

5, according to claim 1,2 or 3 described residual toxicity of pesticide, it is characterized in that: the both sides of described sample chamber (5) are provided with monochromator 4 and receiver 6, central authorities are sample cells, sample cell (13) can be a plurality of, and be provided with slide rail (14) in the sample cell lower end, controller moves by stepper motor (11) control sample cell (13).