CN104181132A - Sample storage ring module for sequential injection atomic fluorescence spectrometer, and manufacturing method thereof - Google Patents

Sample storage ring module for sequential injection atomic fluorescence spectrometer, and manufacturing method thereof Download PDF

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Publication number
CN104181132A
CN104181132A CN201310192923.7A CN201310192923A CN104181132A CN 104181132 A CN104181132 A CN 104181132A CN 201310192923 A CN201310192923 A CN 201310192923A CN 104181132 A CN104181132 A CN 104181132A
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CN
China
Prior art keywords
block
sequential injection
atomic fluorescence
ring module
kapillary
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CN201310192923.7A
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Chinese (zh)
Inventor
王庆
梁敬
董芳
陈璐
杨名名
侯爱霞
张锦茂
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BEIJING RUILI ANALYSIS INSTRUMENT CO LTD
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BEIJING RUILI ANALYSIS INSTRUMENT CO LTD
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Priority to CN201310192923.7A priority Critical patent/CN104181132A/en
Publication of CN104181132A publication Critical patent/CN104181132A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a sample storage ring module for a sequential injection atomic fluorescence spectrometer, and a manufacturing method thereof. The sample storage ring module comprises a fixed shaft, a capillary, a left check block, a right check block and a jacket, wherein the capillary is wound on the fixed shaft; the left check block and the right check block are respectively installed on left and right sides of the capillary wound on the fixed shaft; and the jacket is installed on the left check block and the right baffle block. By carrying out modular design on a sample storage ring pipeline, an image of a sequential injection atomic fluorescence product is improved, thus enabling a flow path system to be simple and reliable, greatly improving maintainability, realizing high reproducibility of a sequential injection sampling system, effectively inhibiting a diffusing effect, and further obviously improving the repeatability of sequential injection atomic fluorescence analysis results.

Description

Be used for accessing ring module of sequential injection atomic fluorescence spectrometer and preparation method thereof
Technical field
The present invention relates to the liquid-way system field of atomic fluorescence spectrometer, especially relate to the liquid-way system field for sequential injection atomic fluorescence spectrometer.
Background technology
The sampling system of atomic fluorescence is divided into Generation-Atomic Fluorescence Spectrometry, continuous flow and three kinds of input modes of sequential injection.Generation-Atomic Fluorescence Spectrometry sampling system and continuous streaming sample introduction system generally adopt peristaltic pump sample introduction, and flow path system is simple, cost is low, but automaticity is low, sampling precision and repeated poor.The former reagent consumption is larger, causes analysis cost higher; The latter's reagent and sample consumption are all larger, and memory effect easily occurs.Sequential injection sample introduction generally adopts high precision syringe pump and multi-position valve sample introduction, and flow path system complexity, cost are relatively high, but automaticity is high and have splendid sampling precision and repeatability, and reagent and sample consumption are all smaller.Sequential injection sampling system has been widely used in high-end atomic fluorescence spectrometer at present.
The core component of sequential injection sampling system mainly contains syringe pump, multi-position valve and accessing ring etc., wherein the effect of syringe pump is to realize sampling with high precision and injected sample, the effect of multi-position valve is the switching that realizes flow path system in sequential injection sampling process, and the effect of accessing ring is sample solution and the current-carrying that store injection pump quantitatively sucks.Sample solution is being inhaled into or releasing in the process of accessing ring, can and current-carrying solution interpenetrate generation diffusional effect.When diffusional effect is serious, can cause the serious broadening in analytic signal peak, and have memory effect to a certain degree, impact analysis sensitivity and repeatability.Above-mentioned diffusional effect cannot be avoided completely, but how effectively to control diffusional effect, realizing sample solution reappears at the height of the process that is inhaled into or releases accessing ring, obtain preferably sensitivity for analysis and repeatability, except being subject to syringe pump capture velocity and injection speed affect, more to depend on the design of accessing ring.
In the sequential injection sampling system of atomic fluorescence, be stored sample solution and current-carrying solution, effectively eliminate memory effect simultaneously, accessing ring generally has the length of 2~6 meters.For paying close attention to the commercialization atomic fluorescence of image product and outward appearance, pipeline how to process length like this becomes the problem that first needs solution.But, regrettably at present sequential injection atomic fluorescence normally by disorderly and unsystematic the pipeline of accessing ring domain on single line axle or be arbitrarily coiled into ring-type, use band tighten rear-mounted on flow channel switching valve, had a strong impact on the image product of sequential injection atomic fluorescence.More seriously, when sample solution is injected pump suction or releases in the irregular pipeline of this stream, can have a strong impact on the stability of sample solution transmission, can bring serious memory effect and diffusional effect simultaneously, have influence on the stability and repeatability analyzed.
Yet there are no the patent about the accessing ring module for sequential injection atomic fluorescence spectrometer.
In view of this,, in order to solve this technical barrier, the height of realizing sequential injection sampling system reappears and effectively suppresses diffusional effect, through constantly research and development and improvement, and then has generation of the present invention.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is to: a kind of accessing ring module for sequential injection atomic fluorescence spectrometer and preparation method thereof is provided, has solved the problem that the irregular accessing ring that exists in background technology brings.
In order to achieve the above object, the invention provides a kind of accessing ring module for sequential injection atomic fluorescence spectrometer, it comprises: stationary shaft, kapillary, left block, right block and a sheath, wherein, described kapillary is wrapped on described stationary shaft, described left block and right block are arranged on respectively the left and right sides capillaceous being wound around on described stationary shaft, and described sheath is arranged on described left block and right block.
Wherein, also comprise a left fixed orifice and right fixed orifice, described left fixed orifice and right fixed hole position are on stationary shaft, and the right side of the left side in described left block and right block respectively.
Wherein, described material capillaceous is teflon or perfluoroethylene-propylene (copolymer) or polyetheretherketone.
Wherein, described internal diameter capillaceous is 0.3mm~3mm.
Wherein, described capillary pipe length is 0.5m~10m.
Wherein, the winding number of plies of described kapillary on stationary shaft is 1~10 layer.
Wherein, the material of described sheath is polymethylmethacrylate or polypropylene.
Wherein, the internal diameter of described sheath is 10mm~100mm.
In order to achieve the above object, the invention provides a kind of method for making of the accessing ring module for sequential injection atomic fluorescence spectrometer, it comprises the steps:
Step S1: the kapillary that intercepts a preset length and internal diameter;
Step S2: left block and right block are arranged on respectively on a stationary shaft;
Step S3: by reserved kapillary 10cm, other parts are close to the right side of left block, is closely wrapped in it on stationary shaft from left to right, to the left side of being close to right block, completes ground floor and is wound around;
Step S4: the kapillary that step S3 is not wound around, be close to the left side of right block, from right to left it is closely wrapped on ground floor kapillary, to the right side of being close to left block, complete the second layer and be wound around;
Step S5: the kapillary that step S4 is not wound around, be close to the right side of left block, from left to right it is closely wrapped on second layer kapillary, be wound to reserved 10cm, complete the 3rd layer of winding;
Step S6: sheath is arranged between left block and right block, completes the manufacturing process of accessing ring module.
Wherein, on described stationary shaft, be provided with left fixed orifice and right fixed orifice, for accessing ring module is installed.
Beneficial effect of the present invention is: accessing ring pipeline is carried out to modular design, improve sequential injection atomic fluorescence image product, make flow path system more simple and reliable, maintainability is greatly enhanced, the height of having realized sequential injection sampling system reappears and effectively suppresses diffusional effect, thereby has significantly improved the repeatability of sequential injection atomic fluorescence analysis result.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of accessing ring module for sequential injection atomic fluorescence spectrometer of the present invention;
Fig. 2 is the method for making process flow diagram of a kind of accessing ring module for sequential injection atomic fluorescence spectrometer of the present invention.
Description of reference numerals: 1-stationary shaft; The left block of 2-; 3-kapillary; The right block of 4-; The right fixed orifice of 5-; 6-sheath; The left fixed orifice of 7-.
Embodiment
For shape of the present invention, structure and feature can be understood better, below will enumerate preferred embodiment and be elaborated by reference to the accompanying drawings.
As shown in Figure 1, a kind of accessing ring module for sequential injection atomic fluorescence spectrometer, comprises stationary shaft 1, left block 2, kapillary 3, right block 4, right fixed orifice 5, sheath 6 and left fixed orifice 7.Described kapillary 3 is wrapped on stationary shaft 1; Described left block 2 and right block 4 are arranged on respectively the left and right sides of the kapillary 3 being wound around on stationary shaft 1; Described sheath 6 is arranged on left block 2 and right block 4; Described left fixed orifice 7 and right fixed orifice 5 are positioned on stationary shaft 1, respectively the right side of the left side in left block 2 and right block 4.
Described material capillaceous is teflon (PTFE) or perfluoroethylene-propylene (copolymer) (FEP) or polyetheretherketone (PEEK).
Described internal diameter capillaceous is 0.3mm~3mm, and length is 0.5m~10m.
The winding number of plies of described kapillary on stationary shaft is 1~10 layer.
The material of described sheath is polymethylmethacrylate (PMMA) or polypropylene (PP), and internal diameter is 10mm~100mm.
As shown in Figure 2, be the method for making process flow diagram of a kind of accessing ring module for sequential injection atomic fluorescence spectrometer of the present invention, its manufacturing process comprises the steps:
Step S1: the kapillary that intercepts a preset length and internal diameter, this internal diameter capillaceous can be 0.3mm~3mm, length can be 0.5m~10m, preferably embodiment is that intercepted length is 5 meters, internal diameter is the kapillary of 1mm, and this material capillaceous can be teflon (PTFE) or perfluoroethylene-propylene (copolymer) (FEP) or polyetheretherketone (PEEK);
Step S2: left block and right block are arranged on respectively on a stationary shaft;
Step S3: by reserved kapillary 10cm, other parts are close to the right side of left block, is closely wrapped in it on stationary shaft from left to right, to the left side of being close to right block, completes ground floor and is wound around;
Step S4: the kapillary that step S3 is not wound around, be close to the left side of right block, from right to left it is closely wrapped on ground floor kapillary, to the right side of being close to left block, complete the second layer and be wound around;
Step S5: the kapillary that step S4 is not wound around, be close to the right side of left block, from left to right it is closely wrapped on second layer kapillary, be wound to reserved 10cm, complete the 3rd layer of winding;
Step S6: sheath is arranged between left block and right block, completes the manufacturing process of accessing ring module.
In the time that accessing ring module is installed, utilize left fixed orifice and right fixed orifice on its stationary shaft.
In sum, the present invention is by carrying out modular design by rambling sequential injection atomic fluorescence accessing ring pipeline, greatly improve sequential injection atomic fluorescence image product, realize the height reproduction of sampling process and effective control of diffusion process, thereby significantly improved the repeatability of sequential injection atomic fluorescence analysis result.
The above description of this invention is illustrative, and nonrestrictive, and those skilled in the art is understood, and can carry out many amendments, variation or equivalence to it, but they all will fall within the scope of protection of the present invention in claim within the spirit limiting and scope.

Claims (10)

1. the accessing ring module for sequential injection atomic fluorescence spectrometer, it is characterized in that, it comprises: stationary shaft, kapillary, left block, right block and a sheath, wherein, described kapillary is wrapped on described stationary shaft, described left block and right block are arranged on respectively the left and right sides capillaceous being wound around on described stationary shaft, and described sheath is arranged on described left block and right block.
2. a kind of accessing ring module for sequential injection atomic fluorescence spectrometer according to claim 1, it is characterized in that, also comprise a left fixed orifice and right fixed orifice, described left fixed orifice and right fixed hole position are on stationary shaft, and the right side of the left side in described left block and right block respectively.
3. a kind of accessing ring module for sequential injection atomic fluorescence spectrometer according to claim 1, is characterized in that, described material capillaceous is teflon or perfluoroethylene-propylene (copolymer) or polyetheretherketone.
4. according to a kind of accessing ring module for sequential injection atomic fluorescence spectrometer described in claims 1 to 3 any one, it is characterized in that, described internal diameter capillaceous is 0.3mm~3mm.
5. according to a kind of accessing ring module for sequential injection atomic fluorescence spectrometer described in claims 1 to 3 any one, it is characterized in that, described capillary pipe length is 0.5m~10m.
6. according to a kind of accessing ring module for sequential injection atomic fluorescence spectrometer described in claims 1 to 3 any one, it is characterized in that, the winding number of plies of described kapillary on stationary shaft is 1~10 layer.
7. a kind of accessing ring module for sequential injection atomic fluorescence spectrometer according to claim 1, is characterized in that, the material of described sheath is polymethylmethacrylate or polypropylene.
8. according to a kind of accessing ring module for sequential injection atomic fluorescence spectrometer described in claim 1 or 7, it is characterized in that, the internal diameter of described sheath is 10mm~100mm.
9. for a method for making for the accessing ring module of sequential injection atomic fluorescence spectrometer, it is characterized in that, it comprises the steps:
Step S1: the kapillary that intercepts a preset length and internal diameter;
Step S2: left block and right block are arranged on respectively on a stationary shaft;
Step S3: by reserved kapillary 10cm, other parts are close to the right side of left block, is closely wrapped in it on stationary shaft from left to right, to the left side of being close to right block, completes ground floor and is wound around;
Step S4: the kapillary that step S3 is not wound around, be close to the left side of right block, from right to left it is closely wrapped on ground floor kapillary, to the right side of being close to left block, complete the second layer and be wound around;
Step S5: the kapillary that step S4 is not wound around, be close to the right side of left block, from left to right it is closely wrapped on second layer kapillary, be wound to reserved 10cm, complete the 3rd layer of winding;
Step S6: sheath is arranged between left block and right block, completes the manufacturing process of accessing ring module.
10. the method for making of a kind of accessing ring module for sequential injection atomic fluorescence spectrometer according to claim 9, is characterized in that, is provided with left fixed orifice and right fixed orifice on described stationary shaft, for accessing ring module is installed.
CN201310192923.7A 2013-05-22 2013-05-22 Sample storage ring module for sequential injection atomic fluorescence spectrometer, and manufacturing method thereof Pending CN104181132A (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2502273Y (en) * 2001-11-23 2002-07-24 北京吉大小天鹅仪器有限公司 Sequential sample injection device for atomic fluorescence spectrograph
JP2003344290A (en) * 2002-05-27 2003-12-03 Aisin Cosmos R & D Co Ltd Fluorescence detector with temperature controller
US20040051051A1 (en) * 2000-12-14 2004-03-18 Olympus Optical Co., Ltd. Fluorescence analysis apparatus and fluorescence analysis method
CN101565175A (en) * 2009-06-05 2009-10-28 华东理工大学 Device of fast synthetizing CdSe quantum dots and method thereof
CN201697821U (en) * 2010-06-18 2011-01-05 北京凯隆分析仪器有限公司 Capillary tube gasification and decompression device
CN202898426U (en) * 2012-07-12 2013-04-24 北京工业大学 Space-oriented spiral micro-fluidic PCR (Polymerase Chain Reaction) real-time fluorescence detection system
CN203275301U (en) * 2013-05-22 2013-11-06 北京瑞利分析仪器有限公司 Sample storage ring module for sequential injection atomic fluorescence spectrometer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040051051A1 (en) * 2000-12-14 2004-03-18 Olympus Optical Co., Ltd. Fluorescence analysis apparatus and fluorescence analysis method
CN2502273Y (en) * 2001-11-23 2002-07-24 北京吉大小天鹅仪器有限公司 Sequential sample injection device for atomic fluorescence spectrograph
JP2003344290A (en) * 2002-05-27 2003-12-03 Aisin Cosmos R & D Co Ltd Fluorescence detector with temperature controller
CN101565175A (en) * 2009-06-05 2009-10-28 华东理工大学 Device of fast synthetizing CdSe quantum dots and method thereof
CN201697821U (en) * 2010-06-18 2011-01-05 北京凯隆分析仪器有限公司 Capillary tube gasification and decompression device
CN202898426U (en) * 2012-07-12 2013-04-24 北京工业大学 Space-oriented spiral micro-fluidic PCR (Polymerase Chain Reaction) real-time fluorescence detection system
CN203275301U (en) * 2013-05-22 2013-11-06 北京瑞利分析仪器有限公司 Sample storage ring module for sequential injection atomic fluorescence spectrometer

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Application publication date: 20141203