JP4585487B2 - Pesticide residue measuring device - Google Patents

Description

  The present invention relates to a technique for a residual pesticide measuring apparatus that measures the type, amount, concentration, and the like of a residual pesticide contained in harvested fruits and vegetables.

For residual agricultural chemicals attached to harvested fruits and vegetables, it is necessary to measure whether the residual agricultural chemicals meet the standard values for residual agricultural chemicals in the Food Sanitation Law. Inspection was performed by destructive inspection by analysis (for example, refer to Patent Document 1).
JP 2005-509158 A

  However, the commissioned analysis has a problem that the commissioned cost is expensive and it takes a long time to obtain an analysis result. On the other hand, in the simple analysis using the ELISA method, although an analysis result is obtained in a few hours, the sample preparation work takes time and is troublesome. Therefore, the problem to be solved by the present invention is to provide a residual pesticide measuring apparatus capable of preparing a sample in a short time and quickly obtaining measurement results such as the residual pesticide concentration.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  In Claim 1, it is a residual pesticide measuring apparatus which measures the residual pesticide density | concentration of fruits and vegetables using an infrared spectrophotometer, This residual pesticide measuring apparatus (1) is an infrared spectrophotometer (2), The diffuse reflection device (3) is composed of two irradiating optical path changing mirrors (11, 12) for guiding the infrared rays synthesized and projected by the interferometer (5). The infrared rays guided by the two irradiation optical path changing mirrors (11, 12) are reflected to the surface of the juice (9) stored in the juice container (22) on the support base (20). And an irradiation mirror (13) for irradiating, and an infrared ray reflected on the surface of the juice (9) and two light receiving mirrors (17) for reflecting the two light receiving optical path changing mirrors (18, 19). The support base (20) is horizontally provided at the lower part of the diffuse reflector (3), and the support base (20) A support wall (21) is erected at the end, the juice container (22) is placed on the support base (20), and the six mirrors are placed on the support wall (21). (11 ・ 12 ・ 13 ・ 17 ・ 18 ・ 19) are erected forward so that they can be rotated in front view or slidable in the vertical and horizontal directions. The irradiation mirror (13) and the light receiving mirror (17) can be adjusted in height using an actuator so as to irradiate with the surface of the water surface of the juice (9), and the irradiation mirror (13) and According to the height adjustment of the light receiving mirror (17), the angles of the other four mirrors (11, 12, 18, 19) can be automatically adjusted using other actuators. .

In Claim 2, in the residual pesticide measuring apparatus of Claim 1, it comprises the mounting base (23) of the fruits and vegetables (10) mounted on the said support stand (20), and the focus position of the said infrared rays, The upper surface of the fruits and vegetables (10) on the mounting table (23) mounted on the support table (20) can also be adjusted.

  As effects of the present invention, the following effects can be obtained.

  In Claim 1, it is a residual pesticide measuring apparatus which measures the residual pesticide density | concentration of fruits and vegetables using an infrared spectrophotometer, This residual pesticide measuring apparatus (1) is an infrared spectrophotometer (2), The diffuse reflection device (3) is composed of two irradiating optical path changing mirrors (11, 12) for guiding the infrared rays synthesized and projected by the interferometer (5). The infrared rays guided by the two irradiation optical path changing mirrors (11, 12) are reflected to the surface of the juice (9) stored in the juice container (22) on the support base (20). And an irradiation mirror (13) for irradiating, and an infrared ray reflected on the surface of the juice (9) and two light receiving mirrors (17) for reflecting the two light receiving optical path changing mirrors (18, 19). The support base (20) is horizontally provided at the lower part of the diffuse reflector (3), and the support base (20) A support wall (21) is erected at the end, the juice container (22) is placed on the support base (20), and the six mirrors are placed on the support wall (21). (11 ・ 12 ・ 13 ・ 17 ・ 18 ・ 19) are erected forward so that they can be rotated in front view or slidable in the vertical and horizontal directions. The irradiation mirror (13) and the light receiving mirror (17) can be adjusted in height using an actuator so as to irradiate with the surface of the water surface of the juice (9), and the irradiation mirror (13) and The angle of the other four mirrors (11, 12, 18, 19) can be automatically adjusted by using other actuators according to the height adjustment of the light receiving mirror (17). Residual pesticide concentration etc. can be measured simply by squeezing juice fromIn other words, there is no need for expensive commissioned analysis, and there is no need to spend much time on sample preparation as in the ELISA method. In other words, the preparation of the sample can be performed in a short time, and measurement results such as residual agricultural chemical concentration can be obtained quickly.

In Claim 2, in the residual pesticide measuring apparatus of Claim 1, it comprises the mounting base (23) of the fruits and vegetables (10) mounted on the said support stand (20), and the focus position of the said infrared rays, Since the upper surface of the fruits and vegetables (10) on the mounting table (23) mounted on the support table (20) can be adjusted, the concentration of residual agricultural chemicals attached to the surface of the fruits and vegetables is measured. In this case, the concentration of pesticide residue on the surface of fruits and vegetables can be measured without destroying the fruits and vegetables. As a result, 100% inspection can be performed over time.

  Next, embodiments of the invention will be described.

  FIG. 1 is a front view showing a residual pesticide measuring apparatus 1 when using a squeeze container 22 according to one embodiment of the present invention, and FIG. 2 is a perspective view of the same.

  FIG. 3 is a graph showing the spectrum of received infrared rays, FIG. 4 is a front view showing the residual pesticide measuring apparatus 1 when the mounting table 23 is used, and FIG. 5 is a perspective view.

  The pesticide residue measuring apparatus 1 according to the present invention measures the type, amount, concentration, etc. (hereinafter referred to as “residual pesticide concentration, etc.”) of the residual pesticide contained in the fruits and vegetables 10 using infrared rays. Hereinafter, an embodiment of the residual pesticide measuring apparatus 1 according to the present invention will be described with reference to FIGS. 1 to 3.

  The fruits and vegetables 10 handled by the pesticide residue measuring apparatus 1 is a generic name for strawberries, tangerines, oranges, melons, tomatoes and other fruits or vegetables, depending on the residual pesticide concentration, quality of sugar (sweetness), acidity (acidity), etc. It is what is selected. Then, by using the residual pesticide measuring apparatus 1, depending on the residual pesticide concentration, etc., the sugar content or Sorted by rank according to internal quality such as acidity.

  Specifically, in the residual pesticide measuring apparatus 1 according to the present invention, when it is difficult to measure the concentration of residual pesticide attached to the surface of the target fruit 10, the fruit 10 is squeezed or crushed. By doing so, the juice 9 of the fruits and vegetables 10 is taken out, and the concentration of residual agricultural chemicals contained in the juice 9 can be measured. In other words, it is possible to measure the concentration of residual agricultural chemicals and the like including components that may penetrate the inside of the fruits and vegetables 10 when it is difficult to focus on the surface of the fruits and vegetables 10. Fruits and vegetables that are difficult to focus on include leafy vegetables such as parsley and spring chrysanthemum, mulberry with unevenness and hair on the surface, kiwifruit, and litchi. Specifically, as will be described later, the juice 9 and the crushed body-containing solution obtained from the fruits and vegetables 10 are poured into the juice container 22 by an operator or the like, and the juice container 22 supports the residual agricultural chemical measuring apparatus 1. It is placed on the table 20 and the residual pesticide concentration in the vicinity of the surface of the juice 9 is measured by infrared rays.

  As shown in FIG. 1 and FIG. 2, the residual pesticide measuring apparatus 1 of the present invention comprises an infrared spectrophotometer 2 and a diffuse reflector 3 attached to the infrared spectrophotometer 2. The infrared spectrophotometer 2 includes a light projecting unit 4, an interferometer 5 that divides and synthesizes (interferes) the infrared rays emitted from the light projecting unit 4, and projects the light to the diffuse reflection device 3. Detection means 6 that receives and detects light from the device 3, an AD converter 7 that converts an output signal obtained from the detection means 6 into a digital signal, and light that is sent from the AD converter 7 A calculation storage unit 8a for spectrally analyzing information and calculating a residual pesticide concentration and the like, a display unit 8b for displaying an analysis result calculated by the calculation storage unit 8a, and the like.

  The diffuse reflection device 3 includes an optical path changing means 14 for guiding infrared rays synthesized and projected by the interferometer 5 to the following irradiation mirror 13, irradiation optical path changing mirrors 11 and 12, and the irradiation optical path changing. Reflecting the infrared rays guided by the mirrors 11 and 12 to irradiate the surface of the juice 9 stored in the juice container 22 on the support 20 described later, and reflected on the surface of the juice 9 Light receiving mirror 17 for reflecting the received infrared rays to the light receiving optical path changing mirrors 18 and 19, and optical path changing means for projecting the infrared rays projected from the light receiving optical path changing mirrors 18 and 19 to the detecting means 6. 15 and so on.

  A support base 20 is horizontally provided at the lower part of the diffuse reflector 3, and a support wall 21 is erected at the rear end of the support base 20. The support table 20 is used to place a squeeze container 22 in which the squeezed juice 9 of the fruits and vegetables 10 is stored. As described later, the support wall 21 has the mirrors 11, 12, 13, 17, 18 and 19 are erected forward so as to be rotatable in front view or slidable in the vertical and horizontal directions.

  The squeeze container 22 is a container in which the squeeze 9 obtained from the fruits and vegetables 10 is stored in the upper part, and the upper part is opened. Specifically, the squeeze container 22 is filled with squeezed 9 obtained by squeezing the fruits and vegetables 10 to be measured by an operator and the like, and the residual pesticide concentration on the surface of the squeezed 9 and the like Is placed on the support 20 of the residual pesticide measuring apparatus 1 during the measurement.

  Returning to FIG. 1, the control means 8 comprising the calculation storage unit 8a and the display unit 8b controls the operation of the residual pesticide measuring apparatus 1, and stores a program for controlling these operations. That is, it is possible to acquire various information from the diffuse reflection device 3, analyze the acquired information by spectrum analysis or the like, and supply power to the diffuse reflection device 3 or the like. In other words, the calculation storage unit 8a receives an output signal related to the reflected light transmitted from the diffuse reflection device 3, and converts the output signal into a spectrum. The information of the reflected light received at is transmitted to the calculation storage unit 8a via the AD converter 7, and the calculation storage unit 8a converts the waveform of the received reflected light as a time function into a spectrum as a function of frequency. Perform Fourier transform.

  The result of the Fourier transform is displayed on the display unit 8b as an infrared spectrum as shown in FIG. Then, the operator can visually determine the displayed spectrum, or the spectrum calculated by the calculation storage unit 8a is automatically processed and the residual pesticide concentration obtained for each juice 9 is automatically determined. It is determined whether it is within the reference value. By displaying the determination result on the display unit 8b, an operator or the like can select the fruits and vegetables 10... As the suitable individuals (the fruits and vegetables 10 within the reference value) and the non-conforming individuals (the fruits and vegetables 10 exceeding the reference value). it can. Specifically, the arithmetic storage unit 8a determines the type of residual pesticide based on a conversion table obtained experimentally in advance for each spectrum and type of residual pesticide, and determines the residual pesticide concentration and the like. It is determined whether the residual agricultural chemical concentration or the like is within a reference value (whether it is a compatible individual or a non-conforming individual), and the determination result is displayed on the display unit 8b.

  The residual pesticide measuring apparatus 1 of the present invention measures the residual pesticide concentration adhered to or penetrates the surface of the fruits and vegetables 10 using the residual pesticide measuring apparatus 1 by infrared rays, and thus obtained from the fruits and vegetables 10 to be measured. Unless the surface of the squeezed juice 9 is adjusted to an optimum position (hereinafter referred to as a focal position), an accurate spectrum of the surface of the squeezed 9 cannot be obtained. Specifically, when the position of the surface of the juice 9 to be measured is not optimal, the intensity of the reflected light received by the detection means 6 becomes weak, and therefore there is a difference in intensity (spectrum unevenness) according to the wavelength in the spectrum waveform. As a result, it becomes impossible to discriminate clearly, and as a result, the concentration of residual agricultural chemicals contained in the juice 9 cannot be accurately determined.

  Therefore, the squeeze container 22 into which the squeezed juice 9 has been injected is placed on the support table 20 of the residual pesticide measuring apparatus 1. Then, for example, the height of the irradiation mirror 13 and the light receiving mirror 17 is adjusted by the control means 8, the angle of the mirrors 11, 12, 18, and 19 is adjusted, and the focal position of the infrared rays is adjusted to the juice 9. Spectral analysis is performed on the surface.

  Specifically, in the calculation storage unit 8a, when the energy, intensity, or intensity unevenness of the spectrum is small based on the spectrum after Fourier transform, the mirrors 11, 12, 13, 17, 18, 19 are used. The height or angle may be adjusted, or another fruit and vegetables 10 may be taken out of the container or the like to recreate the juice 9, and then the spectrum analysis may be performed. If the spectrum energy or intensity or the intensity unevenness is large, the calculation storage unit 8a of the control means 8 determines the type of residual agricultural chemical based on the spectrum and calculates the residual agricultural chemical concentration, Judgment is made as to whether the residual agricultural chemical concentration and the like conform to the standard values of residual agricultural chemicals in the Food Sanitation Law.

  In other words, when the squeeze container 22 is placed on the support table 20, the interferometer 5 and the irradiation mirror 13 are projected from the light projecting unit 4 while the irradiation mirror 13 and the light receiving mirror 17 move up and down and left and right. Infrared light is irradiated to the surface of the juice 9 through the light, and the reflected light reflected by the surface of the juice 9 is absorbed by the detection means 6 via the light receiving mirror 17 and the optical path changing means 15. Then, the absorbed infrared information is transmitted to the control means 8 (that is, the control means 8 acquires the optical information of the fruits and vegetables 10 from the residual pesticide measuring apparatus 1). In the calculation storage unit 8a, the spectrum energy, intensity, or intensity unevenness is calculated based on the spectrum after Fourier transform, and the other mirrors while the irradiation mirror 13 and the light receiving mirror 17 slide in the vertical direction. 11, 12, 18 and 19 are rotated so that the infrared focal point is positioned on the surface of the juice 9.

  Specifically, the height of the irradiation mirror 13 and the light receiving mirror 17 can be adjusted by using an actuator such as a cylinder, and the mirrors 11, 12, 18, and so on can be adjusted according to the height of the irradiation mirror 13 and the light receiving mirror 17. By configuring the angle of 19 to be automatically adjusted using an actuator such as a motor, the residual pesticide 9 concentration in the juice 9 is measured at a position where the energy or intensity of the spectrum or the unevenness of the intensity is large. The fruit and vegetable 10 is configured to determine whether it is a compatible individual or an incompatible individual. In this case, a system in which an operator or the like adjusts the height of the irradiation mirror 13 and the light receiving mirror 17 while observing the spectrum displayed on the display unit 8b, or the irradiation mirror 13 and the light receiving mirror 17 are automatically set. In the calculation storage unit 8a, a focal position with a large spectrum energy or intensity or intensity unevenness is searched (calculated), and the type and concentration of the residual pesticide are measured at the focal position. It may be a system that makes the above determination.

  In addition, the surface position of the juice 9 where the energy of the spectrum is maximized is marked on the juice container 22 in advance, and the operator injects the juice 9 to the position of the marker so that the surface of the juice 9 is It is good also as a structure matched with the focus position of infrared rays. Here, the energy may be the intensity of reflected infrared light measured by the detecting means 6 or the like, or may be a value obtained by integrating the intensity of the spectrum with the wavelength. As described above, as a result of the measurement of the residual pesticide concentration and the like, containers and the like having a lot of compatible individuals are estimated to be a set (lot) of fruits and vegetables 10 · 10... Or other internal qualities such as determination of sugar content can be measured for the fruits and vegetables 10. On the other hand, a container or the like having many nonconforming individuals can be a set (lot) of fruits and vegetables 10, 10. It is preferable to perform such a measurement on a plurality of fruits and vegetables with respect to one container.

  Hereinafter, measurement procedures such as residual agricultural chemical concentration on the surface of the juice 9 using the juice container 22 will be described. As shown in FIGS. 1 to 3, the residual pesticide measuring apparatus 1 squeezes, crushes, or pulverizes the fruits and vegetables 10 to be measured by an operator, and squeezes the juice 9 obtained from the fruits and vegetables 10. Inject into container 22. And the squeeze container 22 is mounted on the support stand 20 of the residual pesticide measuring apparatus 1, and infrared rays are irradiated to the surface of the squeeze 9 from the light projecting unit 4 via the interferometer 5 and the irradiation mirror 13. The reflected light reflected by the surface of the juice 9 is absorbed by the detecting means 6 via the light receiving mirror 17 and the optical path changing means 15.

  Specifically, by adjusting the height of the support base 20 and the height and angle of the mirrors 11, 12, 13, 17, 18, and 19, the squeezed 9 is squeezed from the irradiation mirror 13 while adjusting the infrared focal point to the surface of the squeeze 9. The upper surface of the juice 9 of the juice container 22 is irradiated with infrared rays, the infrared rays are reflected by the water surface of the juice 9, and the reflected light is transmitted to the detection means 6 via the light receiving mirror 17 and the optical path changing means 15. It is projected.

  Then, the optical information of the reflected light on the surface of the juice 9 absorbed by the detection means 6 is converted into a digital signal by the AD converter 7 and transmitted to the arithmetic storage unit 8a. Then, by performing spectrum analysis in the arithmetic storage unit 8a, the residual pesticide concentration and the like on the surface of the juice 9 of the juice container 22 are measured, and it is determined whether the fruit and vegetable 10 is a compatible individual or a non-compatible individual. The measurement result and the determination result are displayed on the display unit 8b.

  In this way, a residual pesticide measuring apparatus that measures the residual pesticide concentration and the like of the fruits and vegetables 10 using the infrared spectrophotometer 2, a squeeze container 22 for storing the juice 9 of the fruits and vegetables 10, and the squeezed juice And a support table 20 on which the container 22 is placed, and the focus position of the irradiated infrared rays can be adjusted to the water surface of the juice 9. It becomes possible to measure the concentration and the like. In other words, there is no need for expensive commissioned analysis, and there is no need to spend much time on sample preparation as in the ELISA method. In other words, the sample 9 can be created in a short time, and measurement results such as residual agricultural chemical concentration can be obtained quickly.

  In other words, it is a residual pesticide measurement method for measuring the residual pesticide concentration and the like of the fruits and vegetables 10 using the infrared spectrophotometer 2, which takes out the juice 9 from the fruits and vegetables 10 and puts the juice 9 into the container 22. Injecting, irradiating the surface of the juice 9 with an infrared ray and irradiating infrared rays, and measuring the residual pesticide concentration of the fruits and vegetables 10 based on the spectrum obtained from the reflected light of the infrared rays. Residual pesticide concentration etc. can be measured just by squeezing. In other words, there is no need for expensive commissioned analysis, and there is no need to spend much time on sample preparation as in the ELISA method. In other words, the sample 9 can be created in a short time, and measurement results such as residual agricultural chemical concentration can be obtained quickly.

  Next, a configuration for measuring the concentration of residual agricultural chemicals attached to the surface of the fruits and vegetables 10 will be described. That is, when measuring only the residual pesticide adhering to the surface of the fruits and vegetables 10, it is not necessary to squeeze or crush the fruits and vegetables 10 for the measurement, so the residual pesticide measuring apparatus 1 does not destroy the fruits and vegetables 10. It is preferable to have a configuration capable of measuring the concentration of residual agricultural chemicals on the surface.

  Specifically, in the residual pesticide measuring apparatus 1 according to the present invention, the squeeze container 22 placed on the support table 20 is replaced with a placement table 23 on which the fruits and vegetables 10 are placed, that is, the support table 20. The mounting table 23 is placed on the top to measure the residual agricultural chemical concentration and the like. As shown in FIG. 4, the fruits and vegetables 10 to be measured are placed on a mounting table 23 and the concentration of residual agricultural chemicals is measured, and the mounting table 23 is used for carrying containers such as trays and pans. In one form, the fruits and vegetables 10 can be placed and transported without damaging the surface of the fruits and vegetables 10.

  Hereinafter, measurement procedures such as the residual pesticide concentration on the surface of the fruits and vegetables 10 using the mounting table 23 will be described. As shown in FIGS. 4 and 5, for example, the fruits and vegetables 10 are extracted from the container or the like by an operator, the fruits and vegetables 10 are placed on the placing table 23, and the placing table 23 is used for the residual pesticide measuring apparatus 1. It is set on the support base 20. As described above, infrared light is emitted from the light projecting unit 4 via the interferometer 5 and the irradiation mirror 13, and the reflected light reflected by the fruits and vegetables 10 is detected via the light receiving mirror 17 and the optical path changing means 15. Absorb at 6. The infrared light absorbed by the detection means 6 is converted into a digital output signal by the AD converter 7, and information on the reflected light from the fruits and vegetables 10 is transmitted to the control means 8. Then, by performing spectrum analysis in the control means 8 to be described later, the type and concentration of the residual pesticide is detected with respect to the fruits and vegetables 10 placed on the residual pesticide measuring apparatus 1, and it is determined whether the individual is a suitable or non-matched individual. To implement.

  As described above, the pesticide residue measuring apparatus 1 according to the present invention is a system that measures the concentration of residual pesticides attached to the surface of the fruits and vegetables 10 using infrared rays. If the focus position is not adjusted, an accurate spectrum of the fruit and vegetable 10 surface cannot be obtained. Specifically, when the position of the surface of the fruits and vegetables 10 to be measured is not optimal, the intensity of the reflected light received by the detection means 6 becomes weak, so that the difference in intensity according to the wavelength (spectrum unevenness) is clearly observed in the spectrum waveform. As a result, it becomes impossible to accurately determine the residual pesticide concentration and the like.

  Therefore, an operator or the like appropriately selects from the fruits and vegetables 10 placed on the container or the like, takes out the fruits and vegetables 10 one after another, and places the placement table 23 on which the fruits and vegetables 10 are placed on the support table 20 of the residual pesticide measuring apparatus 1. Species and concentration of pesticide residue only for fruits and vegetables 10 in which the difference in intensity according to the wavelength (spectrum unevenness) can be clearly identified in the waveform of the spectrum displayed on the display unit 8b. Is determined based on the residual pesticide concentration or the like to determine whether the fruit 10 is a suitable individual or a non-conforming individual. Here, it is preferable that the optimal infrared position (focal length) at which the energy of the spectrum is maximized is set in the control means 8 in advance to an average surface position corresponding to the type of fruit and vegetable 10.

  However, as described above, the height of the irradiating mirror 13 and the light receiving mirror 17 can be adjusted using an actuator such as a cylinder, and the mirror 12 depends on the height of the irradiating mirror 13 and the light receiving mirror 17.・ Because the angles of 18 and 19 can be adjusted automatically using an actuator such as a motor, the residual pesticide concentration is measured at a position where the energy or intensity of the spectrum or the unevenness of the intensity is large. It is good also as a structure which judges whether it is an individual or a nonconforming individual.

  In this case, a system in which an operator or the like adjusts the heights of the irradiation mirror 13 and the light receiving mirror while observing the spectrum displayed on the display unit 8b, or the irradiation mirror 13 and the light receiving mirror 17 are automatically set. While moving up and down, the calculation storage unit 8a searches for (calculates) a focal position where the spectrum energy or intensity or intensity unevenness is large, and measures the type and concentration of the pesticide residue at the focal position, It may be a system for making a judgment.

  As a result of the measurement of the residual pesticide concentration and the like, a container or the like having a large number of compatible individuals can be a set (lot) of fruits and vegetables 10 · 10. On the other hand, a container or the like having many nonconforming individuals can be a set (lot) of fruits and vegetables 10, 10. It is preferable to perform such a measurement on a plurality of fruits and vegetables with respect to one container.

  Thus, the mounting table 23 for mounting the fruits and vegetables 10 is provided, and the focal position of the infrared light can be adjusted on the upper surface of the fruits and vegetables 10 on the mounting table 23 mounted on the support table 20. Therefore, when measuring the concentration of residual agricultural chemicals attached to the surface of the fruits and vegetables 10, the concentration of residual agricultural chemicals on the surface of the fruits and vegetables 10 can be measured without destroying the fruits and vegetables 10. As a result, 100% inspection can be performed over time.

The front view which shows the residual pesticide measuring apparatus at the time of use of the squeeze container which concerns on one Example of this invention. Similarly perspective view. The graph which shows the spectrum of the received infrared rays. The front view which shows the residual pesticide measuring apparatus at the time of mounting table use. Similarly perspective view.

DESCRIPTION OF SYMBOLS 1 Pesticide residue measuring apparatus 9 Juice 10 Fruits and vegetables 20 Support stand 21 Support wall 22 Juice container 23 Mounting stand

Claims (2)

  A pesticide residue measuring apparatus for measuring the concentration of pesticide residue in fruits and vegetables using an infrared spectrophotometer, the residue pesticide measuring apparatus (1) comprising an infrared spectrophotometer (2) and a diffuse reflector (3) The diffuse reflection device (3) is composed of two irradiation optical path changing mirrors (11, 12) for guiding the infrared rays synthesized and projected by the interferometer (5), and the two irradiations. Irradiation mirror that reflects the infrared light guided by the optical path changing mirror (11, 12) and irradiates the surface of the juice (9) stored in the juice container (22) on the support base (20) (13) and the light receiving mirror (17) for reflecting the infrared light reflected on the surface of the juice (9) to the two light receiving optical path changing mirrors (18, 19). 3), a support base (20) is provided horizontally at the bottom of the support base (20), and a support wall (21) is provided at the rear end of the support base (20). The juice container (22) is placed on the support base (20), and the six mirrors (11, 12, 13, 17 are placed on the support wall (21). 18 and 19) are erected forward in a front view so as to be rotatable or slidable in the vertical and horizontal directions, and the focal position of the irradiated infrared rays is the surface of the surface of the juice (9) The height of the irradiation mirror (13) and the light receiving mirror (17) can be adjusted by using an actuator so that the height of the irradiation mirror (13) and the light receiving mirror (17) can be adjusted. Residual pesticide measuring apparatus, wherein the angle of the other four mirrors (11, 12, 18, 19) can be automatically adjusted using other actuators according to the adjustment. The apparatus for measuring residual agricultural chemicals according to claim 1, further comprising a mounting table (23) for fruits and vegetables (10) mounted on the support table (20) , wherein the focal point of the infrared rays is determined by the support table (20). Residual pesticide measuring apparatus, characterized in that it can be adjusted with respect to the upper surface of the fruits and vegetables (10) on the mounting table (23) mounted thereon.

Images