CN101806716A - Self-adaptive colorimetric pool - Google Patents
Self-adaptive colorimetric pool Download PDFInfo
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- CN101806716A CN101806716A CN 201010137876 CN201010137876A CN101806716A CN 101806716 A CN101806716 A CN 101806716A CN 201010137876 CN201010137876 CN 201010137876 CN 201010137876 A CN201010137876 A CN 201010137876A CN 101806716 A CN101806716 A CN 101806716A
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- self
- colorimetric pool
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Abstract
The invention provides a self-adaptive colorimetric pool, which belongs to a spectrophotometry colorimetric pool. The self-adaptive colorimetric pool comprises a body and an upper cover, wherein the upper cover is covered on the body, the body is provided with a colorimetric pool groove with an upward opening, a light inlet port communicated with the colorimetric pool groove is formed on the left end of the body, a detector port communicated with the colorimetric pool groove is in arrangement corresponding to the light inlet port and is formed on the right end of the body, the front side of the body is provided with a circular roll accommodating groove communicated with the colorimetric pool groove, a self-adaptive circular roll is arranged in the circular roll accommodating groove, and the self-adaptive circular roll is arranged in the circular roll accommodating groove in a way that the self-adaptive circular roll per se can rotate through an elastic part which exerts the elasticity in the direction towards the colorimetric pool groove to the self-adaptive circular roll. The invention reaches the effect of consistent position of the same colorimetric cuvette when being inserted into a detection system for many times, the accuracy and the precision of the instrument are improved, and the invention can be widely used in a spectrophotometry analysis instrument.
Description
Technical field
The invention belongs to the photometry detection range, relate to the colorimetric pool structure in the spectrophotometer, relate to a kind of self-adaptive colorimetric pool that can accurately limit the cuvette position particularly.
Background technology
The theoretical foundation of spectrophotometric method is the Lamber-Beer law.The Lambert-Beer law can be sketched and be: when the absorption cell of a branch of parallel monochromatic light by containing uniform extinction material (or gas, solid), the part of light is absorbed by solution, and a part sees through solution, and a part is absorbed the pool surface reflection.If:
Incident intensity is I
0, absorbing light intensity is I
a, seeing through light intensity is I
t, intensity of reflected light is I
r, then the relation between them should be:
I
0＝I
a+I
t+I
r
If: the quality of absorption cell is all identical with thickness, then I
rSubstantially constant, I when concrete measurement operation
rInfluence can cancel each other.
Following formula can be reduced to: I
0=I
a+ I
t
Experimental results show that: when a beam intensity is I
0Monochromatic light by concentration be c, when liquid layer thickness is the solution of b, a part of light is absorbed the back by the extinction material in the solution, and to see through light intensity be I
t, then the pass between them is:
When being called transmittance, represent with T%.
When being called absorbance, represent with A, i.e. A=-lgT=Kbc
This is the mathematic(al) representation of Lambert-Beer law.Wherein, the physical significance of the scale-up factor " K " in the Lambert-Beer law is: the absorbance of extinction material when unit concentration, unit thickness.
Also passed through to be used in the absorption cell to contain the two side of the cuvette of this solution when by the Lambert-Beer law as can be known, monochromatic light is by solution.
Because the development of photoelectric technology, the photoelectricity testing part window of receiving optical signals is more and more littler, 1 * 1 millimeter that is generally commonly used now.
Owing to reasons such as material and manufacture crafts, the two side of cuvette can not be very even.And cuvette will have a fixed gap in colorimetric pool, can not clearance fit.
It seems by above situation, when doing strict data analysis, when cuvette repeatedly inserts in colorimetric pool the consistance of position, can exert an influence to analytical accuracy and precision.In order to address the above problem, self-adaptive colorimetric pool of the present invention has been proposed.
Summary of the invention
The problem that the position is difficult to be consistent when repeatedly inserting colorimetric pool in order to solve cuvette the present invention proposes a kind of self-adaptive colorimetric pool.
A kind of self-adaptive colorimetric pool, comprise main body and the loam cake that covers on the described main body, described main body has the colorimetric pool groove that opening makes progress, have the incident light port that connects with described colorimetric pool groove at described main body left end, relatively have the detecting device port that connects with described colorimetric pool groove at described main body right-hand member and described incident light port, have the round roller holding tank that connects with described colorimetric pool groove in described main body front side, one rotatable round roller is installed in described round roller holding tank, each fixes an elastomeric element circle roller holding tank two ends, and circle roller two ends are located in respectively in the elastomeric element of holding separately.
In the described self-adaptive colorimetric pool, described elastomeric element is for being enclosed within the locking spring at described self-adaptation circle roller two ends respectively, described locking spring is the knuckle shape, the place, summit of described knuckle is rolled into the annulus that is used to provide elastic force, and the end on a limit of described knuckle is rolled into the annulus that is used to penetrate described self-adaptation circle roller.
In the described self-adaptive colorimetric pool, be positioned at round roller holding tank two ends in the front side of described main body and be provided with the spring locating slot, in the described spring locating slot location hole of the spring is arranged, the end on another limit of the knuckle of described locking spring inserts in the location hole of the spring described locking spring is installed in the described spring locating slot.
Described self-adaptation circle roller is the big concentric cylinder assembly of the little mid diameter of two ends diameter.Described cylinder assembly is formed in one.The right cylinder at described two ends is to be fixedly mounted on after the independent moulding on the right cylinder of described centre.
In the described self-adaptive colorimetric pool, the left and right sidewall of described colorimetric pool groove is respectively the antifriction concave surface that extends along the vertical direction.
In the described self-adaptive colorimetric pool, each end face of described self-adaptation circle roller has level and smooth arcuation chamfering.
In the described self-adaptive colorimetric pool, described main body upside has the step around described colorimetric pool groove.
Adopt self-adaptive colorimetric pool of the present invention, consistance that can both the holding position when cuvette is repeatedly inserted colorimetric pool, improved the accuracy and the degree of accuracy of instrument, guaranteed simultaneously to detect, improved the authenticity and the reliability of analysis result with the consistance of monochromatic light in colorimetric system.
Description of drawings
Fig. 1 is the structural representation of self-adaptive colorimetric pool of the present invention.
Fig. 2 is the structural representation of the self-adaptation circle roller of self-adaptive colorimetric pool of the present invention.
Fig. 3 is the structural representation of the locking spring of self-adaptive colorimetric pool of the present invention.
Fig. 4 is the structural representation of the loam cake of self-adaptive colorimetric pool of the present invention.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As Fig. 1～shown in Figure 4, self-adaptive colorimetric pool of the present invention, comprise main body 1 and the loam cake 41 (referring to Fig. 4) that covers on the main body 1, main body 1 has the colorimetric pool groove 8 that opening makes progress, have the incident light port 5 that connects with colorimetric pool groove 8 at main body 1 left end, relatively have the detecting device port 10 that connects with colorimetric pool groove 8 at main body 1 right-hand member and incident light port 5, have the round roller holding tank 3 that connects with colorimetric pool groove 8 in main body 1 front side, self-adaptation circle roller 2 is installed in circle roller holding tank 3, but self-adaptation circle roller 2 is installed in the described round roller holding tank 3 rotatably by means of an elastomeric element self, and elastomeric element can apply elastic force towards colorimetric pool groove 8 to self-adaptation circle roller 2.
The size of colorimetric pool groove 8 and shape will match with cuvette, and in the present embodiment, cuvette is the standard cuvette.
In the time will in colorimetric pool groove 8, inserting cuvette, cuvette compressing contact self-adaptation circle roller 2, justify under self the rotating of roller 2 in self-adaptation, cuvette is inserted in the colorimetric pool groove 8, simultaneously, because of cuvette compressing self-adaptation circle roller 2, and then compressing elastomeric element, so elastomeric element applies reacting force towards colorimetric pool groove 8 to self-adaptation circle roller 2, thereby self-adaptation circle roller 2 is cooperated with the cuvette self-adaptation, make cuvette be adjacent to the rear wall of colorimetric pool groove 8, reach the effect of same cuvette position consistency when repeatedly inserting in the detection system, improved the accuracy and the precision of instrument.
In specific embodiment, elastomeric element is a locking spring 6.Referring to shown in Figure 3, locking spring 6 is the knuckle shape, and the place, summit of knuckle is rolled into annulus 31, so that elastic force to be provided; The end on a limit of knuckle is rolled into annulus 32, to penetrate self-adaptation circle roller 2 therein.And the deformation coefficient that tightens spring 6 will adapt with the intensity of self-adaptation circle roller 2 and cuvette.
Be positioned at round roller holding tank 3 two ends in the front side of main body 1 and offer spring locating slot 4 and 3 perforations of circle roller holding tank in addition, in spring locating slot 4, be provided with location hole of the spring, the end 33 on another limit of the knuckle of described locking spring 6 inserts in the location hole of the spring, and then locking spring 6 is installed in spring locating slot 4 leaves.
Referring to shown in Figure 2, self-adaptation circle roller 2 is the big concentric cylinder assembly of the little mid diameter of two ends diameter.Each cylindrical right alignment is high more, and contacting between self-adaptation circle roller 2 and the cuvette is just good more, and then makes cuvette position consistency when repeatedly inserting, and improves the accuracy and the precision of instrument.
In the present embodiment, the cylinder assembly can be integrated, on the right cylinder 21 in the middle of perhaps being fixedly mounted on after right cylinder 22, the 23 independent moulding at two ends, the right cylinder 22,23 at circle roller 2 two ends penetrates the annulus 32 of the locking spring 6 that is positioned at two ends respectively.
The left and right sidewall of colorimetric pool groove 8 is the antifriction concave surface 7 that extends along the vertical direction respectively, produces light path to prevent the logical light face of friction cuvette when cuvette is inserted colorimetric pool groove 8 and disturbs.
Each end face of self-adaptation circle roller 2 has level and smooth arcuation chamfering, contacts firmly with the cuvette side when avoiding using and scratches cuvette.
Below in conjunction with the concrete example that detects the effect that self-adaptive colorimetric pool of the present invention is produced when using is described in photometric analyzer.
Bromate is an example in the mineral water to detect, and self-adaptive colorimetric pool of the present invention is installed in the water in the bromate detector, and the demand of sensitivity during according to experiment is designed to 9 * 50 * 137mm quartz colorimetric utensil with the supporting cuvette of self-adaptive colorimetric pool of the present invention.
One, sample preparation
According to the pre-treating method of bromate, specimen preparation to be checked is become sample solution.
Sample is: common bottled mineral water.(according to GB8537-2008)
Two, colour developing---measuring operation
Operate by the instrument prompting, draw the result that related component is measured in the sample.
According to the conventional principle of chemical experiment, 11 sample detection are done in this experiment.
This experiment uses simultaneously under the same conditions that the bromate detector detects sample in common supporting 9 * 50 * 137mm quartz colorimetric utensil, colorimetric pool, the water.
Three, the result relatively
Absorbance deck watch when plain edition colorimetric pool and patent type colorimetric pool sample detection
Experimental data shows that the relative standard deviation data of using self-adaptive colorimetric pool of the present invention are significantly better than common colorimetric pool.
Claims (10)
1. self-adaptive colorimetric pool, comprise main body and the loam cake that covers on the described main body, described main body has the colorimetric pool groove that opening makes progress, have the incident light port that connects with described colorimetric pool groove at described main body left end, relatively have the detecting device port that connects with described colorimetric pool groove at described main body right-hand member and described incident light port, it is characterized in that: have the round roller holding tank that connects with described colorimetric pool groove in described main body front side, one rotatable round roller is installed in described round roller holding tank, each fixes an elastomeric element circle roller holding tank two ends, and circle roller two ends are located in respectively in the elastomeric element of holding separately.
2. self-adaptive colorimetric pool as claimed in claim 1, it is characterized in that: described elastomeric element is for being enclosed within the locking spring at described self-adaptation circle roller two ends respectively, described locking spring is the knuckle shape, the place, summit of described knuckle is rolled into the annulus that is used to provide elastic force, and the end on a limit of described knuckle is rolled into the annulus that is used to penetrate described self-adaptation circle roller.
3. self-adaptive colorimetric pool as claimed in claim 2, it is characterized in that: be positioned at round roller holding tank two ends in the front side of described main body and be provided with the spring locating slot, in the described spring locating slot location hole of the spring is arranged, the end on another limit of the knuckle of described locking spring inserts in the location hole of the spring described locking spring is installed in the described spring locating slot.
4. self-adaptive colorimetric pool as claimed in claim 1 is characterized in that: described self-adaptation circle roller is the big concentric cylinder assembly of the little mid diameter of two ends diameter.
5. self-adaptive colorimetric pool as claimed in claim 4 is characterized in that: described cylinder assembly is formed in one.
6. self-adaptive colorimetric pool as claimed in claim 4 is characterized in that: the right cylinder at described two ends is to be fixedly mounted on after the independent moulding on the right cylinder of described centre.
7. self-adaptive colorimetric pool as claimed in claim 1 is characterized in that: the left and right sidewall of described colorimetric pool groove is respectively the antifriction concave surface that extends along the vertical direction.
8. as the arbitrary described self-adaptive colorimetric pool of claim 1～7, it is characterized in that: each end face of described self-adaptation circle roller has level and smooth arcuation chamfering.
9. as the arbitrary described self-adaptive colorimetric pool of claim 1～7, it is characterized in that: described main body upside has the step around described colorimetric pool groove.
10. self-adaptive colorimetric pool as claimed in claim 8 is characterized in that: described main body upside has the step around described colorimetric pool groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101378762A CN101806716B (en) | 2010-03-30 | 2010-03-30 | Self-adaptive colorimetric pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101378762A CN101806716B (en) | 2010-03-30 | 2010-03-30 | Self-adaptive colorimetric pool |
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| Publication Number | Publication Date |
|---|---|
| CN101806716A true CN101806716A (en) | 2010-08-18 |
| CN101806716B CN101806716B (en) | 2011-08-31 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2630813Y (en) * | 2003-07-18 | 2004-08-04 | 浙江大学 | Photometer-carried fluorescent light measuring device |
| CN2634469Y (en) * | 2002-05-20 | 2004-08-18 | 吉林大学 | Multifunction on-site colour comparatour |
| CN1940531A (en) * | 2005-09-29 | 2007-04-04 | 长春吉大·小天鹅仪器有限公司 | Colorimetric device with cluster light-source monocolor unit |
| US7312090B2 (en) * | 2000-10-30 | 2007-12-25 | Sru Biosystems, Inc. | Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor |
| CN201653894U (en) * | 2010-03-30 | 2010-11-24 | 长春吉大·小天鹅仪器有限公司 | Self-adaptation cuvette |
-
2010
- 2010-03-30 CN CN2010101378762A patent/CN101806716B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7312090B2 (en) * | 2000-10-30 | 2007-12-25 | Sru Biosystems, Inc. | Label-free methods for performing assays using a colorimetric resonant reflectance optical biosensor |
| CN2634469Y (en) * | 2002-05-20 | 2004-08-18 | 吉林大学 | Multifunction on-site colour comparatour |
| CN2630813Y (en) * | 2003-07-18 | 2004-08-04 | 浙江大学 | Photometer-carried fluorescent light measuring device |
| CN1940531A (en) * | 2005-09-29 | 2007-04-04 | 长春吉大·小天鹅仪器有限公司 | Colorimetric device with cluster light-source monocolor unit |
| CN201653894U (en) * | 2010-03-30 | 2010-11-24 | 长春吉大·小天鹅仪器有限公司 | Self-adaptation cuvette |
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| Publication number | Publication date |
|---|---|
| CN101806716B (en) | 2011-08-31 |
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