CN103278484A - Portable fluorescent brightener detector - Google Patents

Abstract

The invention provides a portable quick fluorescent brightener detector. The detector comprises a casing, a cassette, an LED (light emitting diode) light source, a light source filter, a sample box, an observation window and a solar cell, wherein the cassette is arranged in a cavity of the casing; the sample box is arranged at the bottom of the casing; the observation window is formed in the upper part of the cassette; and the LED light source is used as an excitation light source of fluorescence reaction, and the light of the LED light source passes through the light source filter, passes through the cassette to irradiate in the sample box. The portable fluorescent brightener detector is small in size and light in weight, can be used outside the lab environment, and can be used for field detection to fulfill the portable carrying requirement.

Description

Portable fluorescent whitening agent detector

Technical field

The present invention relates to a kind of fluorescer pick-up unit, specifically a kind of portable fluorescer fast detecting instrument.

Background technology

Fluorescer is used in daily living article and food in a large number, and in order to whiteness and the vividness that increases article, but fluorescer is harmful, is a kind of potential carcinogenic substance.For the consideration to food security, departments such as the Ministry of Public Health have forbidden using whitening agent in flour production.But still have some producers illegally in flour, to add, for making product color more good-looking, also have artificial situation of adding whitening agent at other food such as lily, dried mushroom etc. simultaneously.Bad manufacturer uses in violation of rules and regulations and adds whitening agent at food and other products that should not add whitening agent, and harm food security and influence health allows people's air defense be unequal to preventing.

What existing fluorescent whitening agent detector had need use under the auxiliary environment of laboratory, can not do on-the-spot the detection; The volume that has is bigger, is inconvenient to carry.

Summary of the invention

Goal of the invention: the invention provides a kind of portable fluorescent whitening agent detector, its objective is that the on-the-spot use of the present fluorescent whitening agent detector of solution is limited and carry inconvenient problem, it can carry out fast detecting to the fluorescer in daily necessities and the food.

Technical scheme: the present invention is achieved by the following technical solutions:

A kind of portable fluorescent whitening agent detector is characterized in that: this detector mainly comprises housing, magazine, led light source, sample box and observation window; Magazine, led light source and sample box are arranged in the housing, and sample box is installed on housing bottom, and magazine is arranged on the sample box top, and the top of magazine is observation window; Led light source is arranged on the outside of magazine as the excitation source of fluorescence reaction, being provided with between magazine and light source can only be by the light source light filter of fluorescence exciting wavelength light, led light source provides exciting light for fluorescence reaction and in use light is projected on the sample in the sample box by the light source light filter, sample in the sample box is subjected to excited fluorescent behind the light, projects observation window behind the observation optical filtering.

Described sample box upper edge is connected with the housing lower edge by magnetic force.

One side and the outer casing bottom of described sample box are rotationally connected, and form the structure with the folding of rotation drawer form.

Described magazine bottom is provided with the translucent cover with magazine and sample box isolation.

Side in the sample box bottom is provided with the fluorescence reference point that is used to indicate fluorescer.

Described observation window place is provided with the observation optical filtering.

The inboard employing of described magazine has black not have the fluorescent paint layer.

Described led light source adopts solar cell as the auxiliary charging power supply, and this solar charging device is arranged on the side in the housing.

Detector charges with civil power or with set solar module and charging circuit connection thereof.

Advantage and effect: the invention provides a kind of portable fluorescer fast detecting instrument of a kind of the present invention, comprise housing, magazine, led light source, light source light filter, sample box, observation window and solar cell, magazine is located in the housing inner chamber, sample box is installed on housing bottom, the top of magazine is observation window, wherein led light source is as the excitation source of fluorescence reaction, and its light passes magazine after by the light source light filter and is radiated in the sample box.

Described sample box can be connected with the housing lower edge by magnetic force; Also can be rotationally connected by sample box one side and outer casing bottom, to rotate the form folding in outer casing bottom; Described magazine bottom is provided with translucent cover, magazine and sample box can be isolated; One side of described sample box bottom is provided with one or more fluorescence reference points that are used to indicate fluorescer, contains fluorescer in the material of fluorescence reference point; Described observation window place is provided with the observation optical filtering; The inboard black that adopts of described magazine does not have fluorescent paint; Described led light source can adopt solar cell as the auxiliary charging power supply; Be provided with rechargeable battery in the detector, can be electrically connected charging or use the solar cell circuit on this instrument to be connected charging with the city.

The present invention has following beneficial effect and advantage:

1. the present invention has augmented the technological gap of current portable fluorescer fast detecting, can realize effectively detecting fast of fluorescer, and volume is small and exquisite, is easy to carry, and is simple to operation.

2. the present invention can implement to detect applied range at the multiple fluorescer that contains in the various article.

Description of drawings:

Fig. 1 is structural representation of the present invention;

Fig. 2 is the position view of fluorescence reference point of the present invention;

Fig. 3 is optical schematic diagram of the present invention.

Among the figure, 101 are the observation optical filtering, and 102 is led light source, and 103 is light source filter, and 104 is magazine, and 105 is solar cell, and 106 is sample box, and 107 is the fluorescence reference point, and 108 is observation window, and 109 is translucent cover.

Embodiment:The present invention is described further below in conjunction with accompanying drawing:

As shown in Figure 1, the present invention relates to a kind of portable fluorescent whitening agent detector, this detector mainly comprises housing,magazine 104, ledlight source 102,sample box 106 andobservation window 108;Magazine 104, ledlight source 102 and sample box are arranged in the housing, andsample box 106 is installed on housing bottom, andmagazine 104 is arranged onsample box 106 tops, and the top ofmagazine 104 isobservation window 108; Ledlight source 102 is arranged on the outside ofmagazine 104 as the excitation source of fluorescence reaction, be provided with the lightsource light filter 103 that can only pass through by the fluorescence reaction excitation wavelength on the top ofmagazine 104, ledlight source 102 provides exciting light for fluorescence reaction and light is projected in thesample box 106 by light source light filter 103.The light that is to say ledlight source 102 passesmagazine 104 by lightsource light filter 103 and is radiated on the sample in thesample box 106, and the sample in the sample box is subjected to fluorescence excitation behind the light,projects observation window 108 behind observationoptical filtering 101.

Sample box 106 has two kinds with the connected mode of housing, and a kind of is thatsample box 106 upper edges are connected with the housing lower edge by magnetic force.Another kind is that a side and the outer casing bottom ofsample box 106 is rotationally connected, and forms the structure with the folding of rotation drawer form.

Describedmagazine 104 bottoms are provided with thetranslucent cover 109 thatmagazine 104 andsample box 106 are isolated.Translucent cover 109 can see through the fluorescence that sends after ultraviolet light that light source sends and sample are excited, and can preventsample contamination magazine 104.

Side insample box 106 bottoms is provided with thefluorescence reference point 107 that is used to indicate fluorescer.Fluorescence reference point 107 is one or more, contains fluorescer influorescence reference point 107 materials, can observe the fluorescence that it emits in working order.Be tested article such as daily necessitiess such as rice, flour, mushroom or clothing when detecting to sample, reference point can play the contrast effect.Whensample box 106 bottoms arranged a plurality of fluorescence reference point, each fluorescence reference point was placed with the fluorescer sample of different content, made the fluorescence of sample reflection with it with reference to contrast.

Describedobservation window 108 places are provided with observationoptical filtering 101.

Describedmagazine 104 inboards are provided with black is not had the fluorescent paint layer.

Described ledlight source 102 adoptssolar cell 105 as the auxiliary charging power supply, and thissolar charging device 105 is arranged on the side in the housing.

The working power of detector and civil power or solar module and charging circuit thereof are connected.Solar module and charging circuit can be realized the fluorescence detector rechargeable battery is charged.

Light source filter 103 among the present invention can only see through and be used for the ultraviolet light that excited sample produces fluorescence, and other visible light can not see through.The fluorescence that sample emits can see through observationoptical filtering 101 and arrive observation window 108.And the visible light of the non-wavelength of fluorescence in the environment can not see through the observation optical filtering.Magazine 104 adopts black not have fluorescent paint, and light path is only passed through in the inside.The circuit of fluorescence detector and other parts all are isolated between magazine and the fluorescence detector shell, the structure compact.Be useful on the reference point of indication fluorescence on the sample box, the reference point material contains the fluorescent material of different content, can send the different fluorescence of intensity when work.

As shown in Figure 3, principle of work of the present invention is: the light that ledlight source 102 sends is as the excitation source that produces fluorescence, after filtering,light source filter 103 entersmagazine 104, project then on the sample on thesample box 106, after testing sample on thesample box 106 was subjected to optical excitation, the fluorescence of launching projectedobservation window 108 behind observation optical filtering 101.The tester can observe by 108 pairs of fluorescence of observation window, also can use instrument to detect or takes a picture.

Volume of the present invention is little, in light weight, need not to use under laboratory environment, can do on-the-spot the detection, satisfies portable requirement.

Claims (9)

1. portable fluorescent whitening agent detector, it is characterized in that: this detector mainly comprises housing, magazine (104), led light source (102), sample box (106) and observation window (108); Magazine (104), led light source (102) and sample box are arranged in the housing, and sample box (106) is installed on housing bottom, and magazine (104) is arranged on sample box (106) top, and the top of magazine (104) is observation window (108); Led light source (102) is arranged on the outside of magazine (104) as the excitation source of fluorescence reaction, being provided with between magazine (104) and led light source (102) can only be by the light source light filter (103) of fluorescence exciting wavelength light, led light source (102) provides exciting light for fluorescence reaction and in use light is projected on the interior sample of sample box (106) by light source light filter (103), sample in the sample box is subjected to excited fluorescent behind the light, projects observation window behind the observation optical filtering.

2. portable fluorescent whitening agent detector according to claim 1, it is characterized in that: described sample box (106) upper edge is connected with the housing lower edge by magnetic force.

3. portable fluorescent whitening agent detector according to claim 1, it is characterized in that: a side and the outer casing bottom of described sample box (106) are rotationally connected, and form the structure with the folding of rotation drawer form.

4. portable fluorescent whitening agent detector according to claim 2 is characterized in that: be provided with the translucent cover (109) that magazine (104) and sample box (106) are isolated bottom the described magazine (104).

5. portable fluorescent whitening agent detector according to claim 1 is characterized in that: the side in sample box (106) bottom is provided with the fluorescence reference point (107) that is used to indicate fluorescer.

6. portable fluorescent whitening agent detector according to claim 1 is characterized in that: described observation window (108) locates to be provided with observation optical filtering (101).

7. portable fluorescent whitening agent detector according to claim 1 is characterized in that: the inboard employing of described magazine (104) has black not have the fluorescent paint layer.

8. portable fluorescent whitening agent detector according to claim 1 is characterized in that: described led light source (102) adopts solar cell (105) as the auxiliary charging power supply, and this solar charging device (105) is arranged on the side in the housing.

9. portable fluorescent whitening agent detector according to claim 1 is characterized in that: detector connects with civil power or with set solar module and charging circuit thereof and charges.

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