CN203053857U - Automatic sampling spectrophotometer - Google Patents

Automatic sampling spectrophotometer Download PDF

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Publication number
CN203053857U
CN203053857U CN 201220694496 CN201220694496U CN203053857U CN 203053857 U CN203053857 U CN 203053857U CN 201220694496 CN201220694496 CN 201220694496 CN 201220694496 U CN201220694496 U CN 201220694496U CN 203053857 U CN203053857 U CN 203053857U
Authority
CN
China
Prior art keywords
cuvette
peristaltic pump
automatic sampling
spectrophotometer
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220694496
Other languages
Chinese (zh)
Inventor
陆建平
倪湖权
张立颖
Original Assignee
陆建平
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 陆建平 filed Critical 陆建平
Priority to CN 201220694496 priority Critical patent/CN203053857U/en
Application granted granted Critical
Publication of CN203053857U publication Critical patent/CN203053857U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses an automatic sampling spectrophotometer. The current commercial spectrophotometer uses a cuvette to store a test solution. The test solution is manually injected and changed, which is inconvenient to operate. In order to overcome the defects, an automatic sampling mode is adopted, so that the whole analysis process is automated, and thus the work efficiency is improved. The device mainly comprises a newly designed cuvette and a peristaltic pump. The cuvette is provided with two sampling ports which are respectively and externally connected with the peristaltic pump 1, and the peristaltic pump 1 is controlled to adjust the sampling speed of liquid and achieve the goal of automatic sampling. The cuvette is also provided with two liquid drain ports, wherein one liquid drain port is directly connected with a waste liquid bottle, and the other liquid drain port is connected with the waste liquid bottle through the peristaltic pump 2 to drain the waste liquid. According to the automatic sampling device provided by the utility model, the automatic sampling of the liquid can be completed, and the sensitivity of the spectrophotometer can be improved.

Description

The auto injection spectrophotometer
Technical field
The spectrophotometer that the utility model patent relates to is a kind of instrument that improves sensitivity for analysis and energy auto injection, can be widely used in qualitative, the quantitative measurement of organic and inorganic material in food, medicine, the administration of justice, scientific research and the production.
Background technology
Present commercial spectrophotometer is to adopt cuvette to deposit test solution.Inject test solution, changing test solution etc. all is manually to carry out, inconvenient operation.At this defective, the utility model adopts the auto injection mode, makes and the The whole analytical process robotization has improved work efficiency.Because original cuvette is not high to the utilization factor of test solution, light only by the minimum part of solution, do not use by the most solutions part.The cuvette that the utility model adopts has improved the utilization factor to test solution, and the test solution for volume has improved light path, makes that measuring sensitivity improves.
Summary of the invention
Technical problem to be solved in the utility model provides and a kind ofly can improve spectrophotometric analysis sensitivity, and device that can auto injection.
The utility model solves the problems of the technologies described above with following technical scheme: the utility model has designed a kind of new cuvette, it is characterized in that: the placement that couches of whole cuvette; The cuvette both ends open is on one side as entrance, on one side as outlet; Outlet side is equal opening up and down, and top mouth directly connects waste liquid bottle, and following mouth must be by connecting waste liquid bottle behind the peristaltic pump.Make under the constant situation of liquor capacity, to increase liquid layer thickness, thereby improve solution absorbency to reach the purpose that increases sensitivity.This cuvette has two injection ports and two leakage fluid drams, connects with emulsion tube respectively.The emulsion tube of sample introduction and discharge opeing is external peristaltic pump respectively.Reach the purpose of auto injection and discharge opeing by peristaltic pump.
The utlity model has following advantage:
(1) improves the absorbance (higher 3 times than the commonsense method under the similarity condition) of same volume, same detected solution, and then improved sensitivity for analysis and accuracy;
(2) by the peristaltic pump auto injection, when having avoided manual operation to the pollution of sample and the harm that improper operation causes human body when detecting the toxic side effect material.
Description of drawings
Fig. 1 is the cuvette structural representation of the utility model design.1 cuvette; 2,3 injection ports: use the external peristaltic pump of emulsion tube respectively; 4,5 leakage fluid drams: 4 directly connect waste liquid bottle, and 5 process peristaltic pumps connect waste liquid bottle.
Fig. 2 is the whole device synoptic diagram of the utility model.
Embodiment
As shown in Figure 1, the utility model cuvette has two injection ports and two leakage fluid drams.2,3 two external peristaltic pumps 1 of injection port, but auto injection need not cuvette is taken out from spectrophotometer.Flow rate of liquid is by peristaltic pump 1 control.Connect waste liquid bottle behind the leakage fluid dram 5 external peristaltic pumps 2.Leakage fluid dram 4 directly connects waste liquid bottle.During sample introduction, open peristaltic pump 1, close peristaltic pump 2, because the atmospheric pressure effect, liquid that can not flows out from leakage fluid dram 5, and will flow out from leakage fluid dram 4.Be full of liquid in the cuvette this moment, can detect.During discharge opeing, close peristaltic pump 1, open peristaltic pump 2, residual liquid will flow out from leakage fluid dram 5 in the cuvette.Flowing to end back (as thinking and be necessary that available distilled water cleans) can begin to measure next time.

Claims (1)

1. The auto injection spectrophotometer,It is characterized in that the placement that couches of novel cuvette, whole cuvette; The cuvette both ends open is on one side as entrance, on one side as outlet; Outlet side is equal opening up and down, and top mouth directly connects waste liquid bottle, and following mouth must be by connecting waste liquid bottle behind the peristaltic pump.
CN 201220694496 2012-12-17 2012-12-17 Automatic sampling spectrophotometer Expired - Fee Related CN203053857U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220694496 CN203053857U (en) 2012-12-17 2012-12-17 Automatic sampling spectrophotometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220694496 CN203053857U (en) 2012-12-17 2012-12-17 Automatic sampling spectrophotometer

Publications (1)

Publication Number Publication Date
CN203053857U true CN203053857U (en) 2013-07-10

Family

ID=48736799

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220694496 Expired - Fee Related CN203053857U (en) 2012-12-17 2012-12-17 Automatic sampling spectrophotometer

Country Status (1)

Country Link
CN (1) CN203053857U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105277559A (en) * 2015-09-28 2016-01-27 北京大学 Microscopic imaging apparatus for pressure-adjustable flow field
CN106404673A (en) * 2016-06-24 2017-02-15 中国林业科学研究院热带林业实验中心 A liquid changing device used for a spectrophotometer colorimetric ware

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105277559A (en) * 2015-09-28 2016-01-27 北京大学 Microscopic imaging apparatus for pressure-adjustable flow field
CN105277559B (en) * 2015-09-28 2019-05-31 北京大学 Microscopic imaging device and the device used with microscopes
CN106404673A (en) * 2016-06-24 2017-02-15 中国林业科学研究院热带林业实验中心 A liquid changing device used for a spectrophotometer colorimetric ware

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130710

Termination date: 20131217