CN101718687A - Instrument for rapidly detecting snail-killing agent of niclosamide on site - Google Patents
Instrument for rapidly detecting snail-killing agent of niclosamide on site Download PDFInfo
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- CN101718687A CN101718687A CN200910231999A CN200910231999A CN101718687A CN 101718687 A CN101718687 A CN 101718687A CN 200910231999 A CN200910231999 A CN 200910231999A CN 200910231999 A CN200910231999 A CN 200910231999A CN 101718687 A CN101718687 A CN 101718687A
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Abstract
The invention relates to an instrument for rapidly detecting the snail-killing agent of niclosamide on site, belonging to the technical field of the instrument for detecting. The instrument for rapidly detecting the snail-killing agent of niclosamide on site comprises a shell. A host, a rechargeable battery and a color comparison box are arranged in the shell. The shell has the functions of controlling the action of the instrument, collecting data, computing, displaying, storing and processing. The color comparison box is a sealed black cubic box, one side of the color comparison box is provided with a photoelectric cell, and the other end is provided with an LED lamp. The rechargeable battery is used for supplying working power to both the host and the photoelectric cell. The instrument can be used for rapidly and conveniently detecting the application dosage of niclosamide ethanolamine salt wettable powder on site.
Description
Technical field
The present invention relates to a kind of detecting instrument technical field, particularly the field quick detection instrument of snail-killing agent of niclosamide.
Background technology
Niclosamidum is the snail killing agent of the unique recommendation of present WHO, and what China mostly used now is 50% bayluscid wettable powder.For extremely, also there is not a kind of method that is applicable to on-the-spot niclosamidum fast detecting both at home and abroad up till now.Because the existence of complicated factors such as landform, the water yield, this medicine go out in the open air spiral shell sprinkling or soak extremely that formulation rate is difficult in the process grasps, dose kills not dead with few spiral shell, dose is excessive to waste financial resources again, for in time grasping formulation rate, process is killed in supervision, monitoring, and detection method and the necessary instrument of setting up quick, the sensitive niclosamidum medicine in scene are very necessary.For extremely, the analytical approach of niclosamidum has chromatography, voltammetry and ultraviolet-visible spectrophotometry up till now, and above method is had relatively high expectations to instrument, is unsuitable for on-the-spot express-analysis.
Summary of the invention
The object of the invention is to provide a kind of can realize the on-the-spot detector that carries out bayluscid wettable powder amount of application quickly and easily.
The present invention includes main frame, rechargeable battery and comparator block, described main frame has instrument action control, data acquisition, calculating, demonstration, storage and processing capacity, described comparator block is airtight black cube box, and a side is equipped with photoelectric cell, a relative side is equipped with the LED lamp; Described rechargeable battery provides photoelectric cell working power in host work power supply and the comparator block.
Main frame of the present invention is made up of integrated circuit and LCDs, described integrated circuit comprises cpu controller, the photosignal change-over circuit, amplifying circuit, the A/D change-over circuit, display driver circuit, keyboard circuit, the print drive circuit, communicating circuit, clock circuit, memory circuit, described photosignal change-over circuit, amplifying circuit, the A/D change-over circuit, display driver circuit, keyboard circuit, the print drive circuit, communicating circuit, clock circuit is connected with cpu controller respectively with memory circuit, the output terminal of described amplifying circuit connects the A/D change-over circuit, and described LCDs is connected the output terminal of display driver circuit.
Detector machine of the present invention also is provided with mini-printer, and the output terminal of described print drive circuit connects mini-printer.
The present invention adopts the colourimetry principle, and Lambert-Beer's law is the basis of colourimetry, visible ultraviolet spectrometry quantitative analysis.This law shows, when a branch of monochrome by evenly, during the solution of no scattering phenomenon, under the immovable situations of condition such as monochromatic light intensity, solution temperature, solution is directly proportional with the product of solution concentration and liquid layer thickness to the absorbance log of light.Can directly measure light absorption value or its concentration of measured object in the solution (niclosamidum).
The present invention adopts portable integrated design: hold parts such as motherboard, rechargeable battery, comparator block are installed in the casing at a hand.Instrument also can be transferred to computer with determination data with dataphone and do further data analysis etc., also can link to each other with mini-printer to print determination data.
Motherboard: the instrument surface-mounted integrated circuit, on amplifying circuit, charging circuit, A/D change-over circuit, circuit of light sources, liquid crystal display drive circuit, communicating circuit etc. are arranged.
Comparator block: airtight black cube box, a side are equipped with the LED lamp that photoelectric cell, a relative side are equipped with specific wavelength.The front and back light intensity difference that cuvette is put into box can draw absorbance.
The emphasis of comparator block is to select suitable light source and sensor devices.
But by the law of Beer road: solution absorbency is directly proportional with the concentration of solution, and different material has different extinction degree to the light of different wave length.Principle is to confirm which colour system light source according to the color of colour developing liquid, and according to measure the linearity and the next scope of determining wavelength of sensing range that requires more accurately, we just can learn the light source of the specific wavelength that we need so again.The light source of specific wavelength is available two kinds, and a kind of is this wavelength light source of customization, and a kind of is to filter to make by monochromatic sheet to obtain the specific wavelength light source.
Photoelectric cell is a kind of photovalve of self-power generation type, and self can produce the electromotive force of certain orientation when it was subjected to illumination, under the situation that does not add power supply, as long as connect external circuit, just has electric current to pass through.Photronic kind is a lot, and wherein most widely used is silicon photocell, because it has series of advantages, for example stable performance, spectral range is wide, frequency characteristic good, conversion efficiency is high, the high angry radiation of ability etc.Photoelectric cell is to the light of different wave length, and sensitivity is different.It is also inequality that the people that the photoelectric cell of different materials is suitable for penetrates optical wavelength range.The scope of application of silicon photocell is wide, and corresponding lambda1-wavelength can be between 0.45～1.1, and selenium cell can only be in 0.34～0.57 wavelength coverage.The present invention has selected the sensor devices of silicon photocell as instrument for use.
The size of comparator block is decided according to the size of cuvette, and instrument adopts 721 general cuvettes.
For preventing that the liquid corrosion circuit board can be made into comparator block an independent closed device and be contained in the casing of the present invention in fact.
Rechargeable battery: adopt Ni-MH battery or lithium battery.
Mini-printer: be used to print measurement result.
Data software: be installed in the general-purpose computer, can read the data in the instrument.
The present invention is by means of a kind of reagent, niclosamidum negative ion and alkali root kation are combined into ionic associate, what can enlarge the niclosamidum molecule grips structure altogether, increase its extinction useful area, can make the maximum absorption band red shift and increase its molar absorptivity, thereby realize visible photometry even visual analysis.Utilize direct photometry, adopt the present invention can realize niclosamidum formulation rate field quick detection.
Advantage of the present invention be embodied in following some:
1, can directly measure concentration or its light absorption value of niclosamidum in the solution.
2, detection speed is fast, and be no more than 5 minutes on-the-spot detection time.
3, the result is accurate, compares with laboratory method, and resultant error is in 10% scope.
4, on-the-spot detectable cost is no more than 1.0 yuan for every part, and cost is low.
5, handled easily as long as have the personnel of the level of graduating from junior middle school, can be grasped the on-site measurement method in 30 minutes.
6, the instrument volume is little, in light weight, and carry at the scene of being suitable for.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is a schematic block circuit diagram of the present invention.
Embodiment
As shown in Figure 1, 2, the present invention is provided with main frame, rechargeable battery and comparator block in casing, described main frame has instrument action control, data acquisition, calculating, demonstration, storage and processing capacity, described comparator block is airtight black cube box, and a side is equipped with photoelectric cell, a relative side is equipped with the LED lamp; Described rechargeable battery provides photoelectric cell working power in host work power supply and the comparator block.
Main frame of the present invention is made up of integrated circuit and LCDs, described integrated circuit comprises cpu controller, the photosignal change-over circuit, amplifying circuit, the A/D change-over circuit, display driver circuit, keyboard circuit, the print drive circuit, communicating circuit, clock circuit, memory circuit, described photosignal change-over circuit, amplifying circuit, the A/D change-over circuit, display driver circuit, keyboard circuit, the print drive circuit, communicating circuit, clock circuit is connected with cpu controller respectively with memory circuit, the output terminal of described amplifying circuit connects the A/D change-over circuit, and described LCDs is connected the output terminal of display driver circuit.
Casing also is provided with mini-printer outward, and the output terminal of described print drive circuit connects mini-printer.
Use example:
One, the preparation of detectable:
Take by weighing 40 gram sodium hydrate solids, 20g ethylenediamine tetraacetic acid (or salt of ethylenediamine tetraacetic acid), 100ml50% tetramethyl ammonium hydroxide solution, water-soluble after mixing, constant volume is 250ml.
Above method is made the concentrated type reagent of convenient transportation, uses after 80 times of the dilutions when scene is detected.
Two, the making in laboratory of standard of instruments curve:
1, in the 100mL color comparison tube, adds the bayluscid standard solution respectively, and be diluted with water to scale, be equivalent to 0,20,40,60,80,100mg/100mL.
2, add the 1ml concentrated reagent, placed 3 minutes behind the mixing, measure solution absorbency A with the niclosamidum in-situs tester.
3, detect the end back and continue the follow procedure operation, instrument will carry out regression Calculation automatically according to the absorbance that the concentration of measuring obtains, and obtain intercept, slope and the linearity of typical curve respectively.
4, confirm that above data are without demur after, the instrument that is attaching typical curve just can take the scene to and use.
Three, sample collecting:
1, soak the collection of medicine extremely:
Soak water sample extremely with direct collection of sampling bottle, for analyzing.
2, the collection of spraying medicine:
Sampler tray (as diameter 6cm double dish) is lain against sampled point, collect sampler tray after the dispenser, for analyzing.
Three, detect:
1, soak the detection of medicine extremely:
Get with color comparison tube and to soak extremely water sample 50ml, add the 1ml concentrated reagent again, placed 3 minutes behind the mixing, measure its concentration or absorbance A with detector of the present invention, concrete operation method:
(1) start: press the red button on instrument right side, power connection, a screen left side second row shows absorbance.
(2) mixture solution is poured in the cuvette, cuvette is put into comparator block, cover the comparator block cap, a screen left side second row shows the absorbance of mixture.
(3) by the capable content that shows measured matter in the mixture of " measurement key " screen the second from left.
2, the detection of spraying medicine:
Measure 200ml by the rare reagent after 80 times of the dense reagent dilutions with graduated cylinder, therefrom inhale in the double dish that 3ml reagent adds sampling usefulness, make medicine dissolving in the double dish with suction pipe, too big as sampling ware area, can strengthen amount of reagent.Repeatedly wash sampling ware double dish with this solution, the molluscacide washing lotion is collected in the beaker, form uniform 200ml mixed liquor at last.With same method, measure the concentration or the absorbance A of solution in the beaker with detector of the present invention.
Instrument shows the bayluscid wettable powder concentration value that kills spiral shell drug administration washing lotion sample automatically, and can print related data by mini-printer, also can store data by memory circuit.
Four, instrument calculates the formulation rate mathematical formulae:
(1) concentration is read-only
(2) pressing absorbance calculates:
1, soaks water C extremely
1=36A
In the formula: C
1Be the bayluscid formulation rate, the g/m of unit
3
A is a photometer absorbance reading
2, spraying medicine C
2=7.2A/S
In the formula: C
2Be the bayluscid formulation rate, the g/m of unit
2
A is a photometer absorbance reading
S sample disc area: the cm of unit
2
Claims (3)
1. instrument for rapidly detecting snail-killing agent of niclosamide on site, it is characterized in that comprising main frame, rechargeable battery and comparator block, described main frame has instrument action control, data acquisition, calculating, demonstration, storage and processing capacity, described comparator block is airtight black cube box, and a side is equipped with photoelectric cell, a relative side is equipped with the LED lamp; Described rechargeable battery provides photoelectric cell working power in host work power supply and the comparator block.
2. according to the described instrument for rapidly detecting snail-killing agent of niclosamide on site of claim 1, it is characterized in that described main frame is made up of integrated circuit and LCDs, described integrated circuit comprises cpu controller, the photosignal change-over circuit, amplifying circuit, the A/D change-over circuit, display driver circuit, keyboard circuit, the print drive circuit, communicating circuit, clock circuit, memory circuit, described photosignal change-over circuit, amplifying circuit, the A/D change-over circuit, display driver circuit, keyboard circuit, the print drive circuit, communicating circuit, clock circuit is connected with cpu controller respectively with memory circuit, the output terminal of described amplifying circuit connects the A/D change-over circuit, and described LCDs is connected the output terminal of display driver circuit.
3. according to the described instrument for rapidly detecting snail-killing agent of niclosamide on site of claim 1, it is characterized in that described detector also comprises mini-printer is set that the output terminal of described print drive circuit connects mini-printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910231999A CN101718687A (en) | 2009-12-07 | 2009-12-07 | Instrument for rapidly detecting snail-killing agent of niclosamide on site |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910231999A CN101718687A (en) | 2009-12-07 | 2009-12-07 | Instrument for rapidly detecting snail-killing agent of niclosamide on site |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101718687A true CN101718687A (en) | 2010-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910231999A Pending CN101718687A (en) | 2009-12-07 | 2009-12-07 | Instrument for rapidly detecting snail-killing agent of niclosamide on site |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458622A (en) * | 2014-12-18 | 2015-03-25 | 扬州大学 | Fast detector for detecting amount of niclosamide applied to river water |
| CN104483312A (en) * | 2014-12-18 | 2015-04-01 | 扬州大学 | Rapid detector for application amount of niclosamide in soil |
-
2009
- 2009-12-07 CN CN200910231999A patent/CN101718687A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458622A (en) * | 2014-12-18 | 2015-03-25 | 扬州大学 | Fast detector for detecting amount of niclosamide applied to river water |
| CN104483312A (en) * | 2014-12-18 | 2015-04-01 | 扬州大学 | Rapid detector for application amount of niclosamide in soil |
| CN104458622B (en) * | 2014-12-18 | 2017-02-22 | 扬州大学 | Fast detector for detecting amount of niclosamide applied to river water |
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Application publication date: 20100602 |