CN201075081Y - Intermittent injection sampling device - Google Patents

Intermittent injection sampling device Download PDF

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Publication number
CN201075081Y
CN201075081Y CNU2007201700406U CN200720170040U CN201075081Y CN 201075081 Y CN201075081 Y CN 201075081Y CN U2007201700406 U CNU2007201700406 U CN U2007201700406U CN 200720170040 U CN200720170040 U CN 200720170040U CN 201075081 Y CN201075081 Y CN 201075081Y
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China
Prior art keywords
pump
gas
stop valve
reactor
sampling
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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 - Lifetime
Application number
CNU2007201700406U
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Chinese (zh)
Inventor
魏文元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Bohui Innovation Technology Co., Ltd.
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BEIJING LWL INSTRUMENT Co Ltd
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Priority to CNU2007201700406U priority Critical patent/CN201075081Y/en
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Publication of CN201075081Y publication Critical patent/CN201075081Y/en
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Abstract

The utility model relates to a sample introduction device used for an atomic fluorescence spectrometer, in particular to a sample introduction device specially used for the atomic fluorescence spectrometer with hydride generation. The device comprises a sample introduction part, a carrier part, an entering control part, a reactor, a gas/liquid separator, a discharging control part and a discharging part. Owning to the intermittent injection sample introduction device used for the atomic fluorescence spectrometer, the utility model eliminates the technical defects of a flow injection sample introduction device, an intermittent flow sample introduction device and a sequent flow injection, and has the advantages of higher ration precision of samples, improving the application effects of functions such as single point consistency online automatic configuration standard series, online automatic dilution of high consistency samples, etc., improving the precision and detection limit of the instrument, improving the automation of the instrument, thus the performance/price ratio of corresponding devices is higher.

Description

A kind of interrupted sample injection device
Technical field:
The utility model relates to a kind of sampling device that is used for atomic fluorescence spectrometer, particularly a kind of sampling device that is exclusively used in the atomic fluorescence spectrometer that has the hydride reaction generation.
Background technology:
In the prior art, the type that the sampling device of atomic fluorescence spectrometer is commonly used has flow injection, intermittently flows and flows three kinds in proper order.Yet, in use there is the sampling valve easy-to-leak liquid in the flow injection sampling device, sample introduction needle and sample introduction Guan Zhongyi produce the sample cross pollution, and because the structure problem of sampling device liquid driven parts, cause detecting inaccurate problem after easily causing sample quantitative for a long time, and the tightness regulated of pump line briquetting directly influences the problem in the serviceable life of the test performance of instrument and pump line, has shortcomings such as the human factor influence is bigger in the prior art.Though and the sampling device that intermittently flows has partly solved the problem of sample cross pollution, with shortcomings such as the human factor influence are bigger substantial change is not arranged for the quantitatively long-time back of the tired impaired sample that causes of pump line is inaccurate.Sampling device has been realized substituting of pump line though order flows, and has better solved the quantitatively inaccurate shortcoming of sample, reduces the analytical reagent consumption simultaneously.Sampling device but has structural defective but order flows, as constitute the valve arrangement complexity of stream, and maintainable poor, the soda liquor container that needs are independent, increase the complexity that device is provided with, complicated multi-position valve Costco Wholesale is higher and change technical matterss such as difficult in maintenance.
The utility model content:
The purpose of this utility model provides a kind of interrupted sample injection device that is used for atomic fluorescence spectrometer, this device can keep flow injection, intermittently flow and the advantage of three kinds of sampling devices of order flow injection, has eliminated the shortcoming that these devices exist simultaneously again.
The purpose of this utility model is achieved in that
A kind of interrupted sample injection device, described device comprise sample introduction parts, carrier body, enter control assembly, reactor 6, gas-liquid separator 8, discharge controlling part and discharge parts;
Described sample introduction parts comprise current-carrying sample hose 4 and sampling ring 3; Described carrier body comprises reductive agent pipe 2 and carrier gas pipe 9; Described discharge parts comprise gas outlet pipe 7 and liquid discharge tube;
Described sample introduction parts are connected with reactor 6 by the described control assembly that enters with carrier body, and reactor 6 is connected with gas-liquid separator 8, and gas-liquid separator 8 is connected with the discharge parts by discharge controlling part, and gas and waste liquid are discharged;
The sample introduction parts and the carrier body that comprises reductive agent and carrier gas that comprise sample, by entering the effect of control assembly, sample and reductive agent are arranged in the into described reactor 6, after described reactor 6 reactions, reacted gas-liquid is entered described gas-liquid separator 8, by the effect of described carrier gas pipe 9 and discharge controlling part, gas, liquid are arranged respectively in the into described discharge parts, and discharged by discharging parts.
In concrete a kind of embodiment of using, the described control assembly that enters comprises sampling pump 10, first stop valve 11 and peristaltic pump 5; Described discharge controlling part comprises described first stop valve 11 and described peristaltic pump 5;
Described current-carrying sample hose 4 is connected with sampling ring 3 one ends, and sampling ring 3 other ends are connected with sampling pump 10 with the sample introduction pump line of peristaltic pump 5 respectively by a threeway; In described sampling ring 3 and sampling pump 10 connecting lines, be provided with described first stop valve 11; One end of described reactor 6 is connected with described sampling pump 10 with the sample pump line that goes out of described peristaltic pump 5 respectively by a threeway, and reactor 6 is provided with second stop valve 12 with sampling pump 10 connecting lines;
The reductive agent pump line that advances of described reductive agent pipe 2 and described peristaltic pump 5 is connected; The reductive agent pump line that goes out of described peristaltic pump 5 is connected with described reactor 6; Described carrier gas pipe 9 is connected with described reactor 6;
The endpiece of described reactor 6 is connected with gas-liquid separator 8, and described gas-liquid separator 8 comprises gas outlet pipe 7 and liquid discharge tube; The liquid discharge tube mouth of described gas-liquid separator 8 is connected with described sewer pipe 1 by described peristaltic pump 5.
In concrete second kind of embodiment using, the described control assembly that enters comprises sampling pump 10, reductive agent pump 15 and stop valve group; Described discharge controlling part comprises described peristaltic pump 5;
Described current-carrying sample hose is connected with the 3rd stop valve 13 1 ends; The other end of described the 3rd stop valve 13 is connected with sampling pump 10 with described sampling ring 3 respectively by threeway, and is provided with the 4th stop valve 18 in the pipeline of the 3rd stop valve 13 and sampling pump 10; Described sampling pump 10 is connected with described reactor 6 with the 6th stop valve 14 by the 5th stop valve 19 successively; The other end of described sampling ring 3 is connected with described reactor 6 by the 6th stop valve 14;
Described reductive agent pipe 2 is connected with described reductive agent pump 15 by the 7th stop valve 17; Described reductive agent pump 15 is connected with described reactor 6 by the 8th stop valve 16; Described carrier gas pipe 9 is connected with described reactor 6;
The other end of described reactor 6 is connected with gas-liquid separator 8, and described gas-liquid separator 8 comprises gas outlet pipe 7 and liquid discharge tube; The liquid discharge tube mouth of described gas-liquid separator 8 is connected with described sewer pipe 1 by described peristaltic pump 5.
In concrete the application, described sampling pump 10 and reductive agent pump 15 are syringe pumps.
Described interrupted sample injection device is arranged in the atomic fluorescence spectrometer.
Because the interrupted sample injection device that is used for atomic fluorescence spectrometer that the utility model provides, except eliminating the flow injection sampling device, intermittently flowing the technological deficiency that sampling device and order flow injection exist, keep the advantage of following sampling device simultaneously.
The utility model has substituted peristaltic pump pump line input mode, adopts the syringe pump sample introduction; Do not adopt the structure members such as cross-over valve that directly contact with chemical solution simultaneously, the remaining volume of liquid is littler in the use, and is littler to the influence of sample introduction, and the sample quantitative accuracy is higher; Can improve the on-line automatic configuration standard series of single-point concentration, online enriched sample such as be diluted automatically at the effect of function, improve the precision and the detection limit of instrument, improve the automaticity of instrument, make the cost performance of related device higher.In addition, all can realize the full-automation of atomic fluorescence spectrometer with the interrupted injecting systems of the interrupted injecting systems of single syringe pump and double injection pump, having improved the service efficiency and the practicality of atomic fluorescence spectrometer, is the more satisfactory sampling device that is used for atomic fluorescence spectrometer.
Description of drawings:
Fig. 1 is the structural representation of specific embodiment 1 of the present utility model;
Fig. 2 is the structural representation of specific embodiment 2 of the present utility model.
Below in conjunction with embodiment each width of cloth accompanying drawing is described.
Embodiment.
Fig. 1 is the structural representation of specific embodiment 1 of the present utility model;
The interrupted sample injection device that is used for atomic fluorescence spectrometer described in the utility model comprises sewer pipe 1, reductive agent pipe 2, sampling ring 3, current-carrying sample hose 4, peristaltic pump 5, reactor 6, gas outlet pipe 7, gas-liquid separator 8, carrier gas pipe 9, sampling pump 10, the first stop valves 11, the second stop valves 12.Described sampling pump 10 is syringe pumps.
In concrete a kind of embodiment of using, the described control assembly that enters comprises sampling pump 10, first stop valve 11 and peristaltic pump 5; Described discharge controlling part comprises described first stop valve 11 and described peristaltic pump 5;
Described current-carrying sample hose 4 is connected with sampling ring 3 one ends, and sampling ring 3 other ends are connected with sampling pump 10 with the sample introduction pump line of peristaltic pump 5 respectively by a threeway; In described sampling ring 3 and sampling pump 10 connecting lines, be provided with described first stop valve 11; One end of described reactor 6 is connected with described sampling pump 10 with the sample pump line that goes out of described peristaltic pump 5 respectively by a threeway, and reactor 6 is provided with second stop valve 12 with sampling pump 10 connecting lines;
The reductive agent pump line that advances of described reductive agent pipe 2 and described peristaltic pump 5 is connected; The reductive agent pump line that goes out of described peristaltic pump 5 is connected with described reactor 6; Described carrier gas pipe 9 is connected with described reactor 6;
The endpiece of described reactor 6 is connected with gas-liquid separator 8, and described gas-liquid separator 8 comprises gas outlet pipe 7 and liquid discharge tube; The liquid discharge tube mouth of described gas-liquid separator 8 is connected with described sewer pipe 1 by described peristaltic pump 5.
Referring to Fig. 1, the sample introduction process of the interrupted injection of single pump divided for three steps carried out: the first step, by current-carrying sample hose 4, sampling pump 10 and first stop valve of opening 11 with sample and current-carrying, introduce sampling ring 4; Second step, close first stop valve 11, by peristaltic pump 5, reductive agent pipe 2, sample and reductive agent introducing reactor 6 are reacted, resultant of reaction injects gas-liquid separator 8, brings tested element hydride into gas outlet pipe 7 by the carrier gas that carrier gas pipe 9 is sent, simultaneously by peristaltic pump 5 and waste pipe 1 effluent discharge.In the 3rd step,, discharge liquid cleaning reaction device 6 and gas-liquid separator 8 in the sampling pump by sampling pump 10, second stop valve 12 opened.
Fig. 2 is the structural representation of specific embodiment 2 of the present utility model.
Above-mentioned sample injection device is the structure of the interrupted injection of single injection, intermittently injects in order to realize the double injection pump,
Introduce the sample introduction process and the further sample introduction process of improving interrupted injection of interrupted injection below respectively.
Also have reductive agent pump 15, the three stop valves on the structure, the 4th stop valve, the 5th stop valve, the 6th stop valve, the 7th stop valve and the 8th stop valve, described reductive agent pump 15 is syringe pumps.
In concrete second kind of embodiment using, the described control assembly that enters comprises sampling pump 10, reductive agent pump 15 and stop valve group; Described discharge controlling part comprises described peristaltic pump 5;
Described current-carrying sample hose is connected with the 3rd stop valve 13 1 ends; The other end of described the 3rd stop valve 13 is connected with sampling pump 10 with described sampling ring 3 respectively by threeway, and is provided with the 4th stop valve 18 in the pipeline of the 3rd stop valve 13 and sampling pump 10; Described sampling pump 10 is connected with described reactor 6 with the 6th stop valve 14 by the 5th stop valve 19 successively; The other end of described sampling ring 3 is connected with described reactor 6 by the 6th stop valve 14;
Described reductive agent pipe 2 is connected with described reductive agent pump 15 by the 7th stop valve 17; Described reductive agent pump 15 is connected with described reactor 6 by the 8th stop valve 16; Described carrier gas pipe 9 is connected with described reactor 6;
The other end of described reactor 6 is connected with gas-liquid separator 8, and described gas-liquid separator 8 comprises gas outlet pipe 7 and liquid discharge tube; The liquid discharge tube mouth of described gas-liquid separator 8 is connected with described sewer pipe 1 by described peristaltic pump 5.
With reference to Fig. 2, the sample introduction process of the interrupted injection of double injection pump is carried out in two steps: the first step, by current-carrying sample hose 4, reductive agent pipe 2, reductive agent pump 15, sampling pump 10 and stop valve of opening 13,17 and the stop valve 14 of closing, 16 controls, with sample and current-carrying, introduce sampling ring 4, reductive agent is introduced reductive agent pump 15.;
Second step, close stop valve 13,17, open stop valve 14,16, by sampling pump 10, reductive agent pump 15 reacts sample and reductive agent introducing reactor 6, and resultant of reaction injects gas-liquid separator 8, bring tested element hydride into gas outlet pipe 7 by the carrier gas that carrier gas pipe 9 is sent, discharge liquid cleaning reaction device 6 and gas-liquid separator 8 in the sampling pump.Simultaneously by peristaltic pump 5 and waste pipe 1 effluent discharge.

Claims (5)

1. interrupted sample injection device is characterized in that: described device comprises sample introduction parts, carrier body, enters control assembly, reactor (6), gas-liquid separator (8), discharge controlling part and discharge parts;
Described sample introduction parts comprise current-carrying sample hose (4) and sampling ring (3); Described carrier body comprises reductive agent pipe (2) and carrier gas pipe (9); Described discharge parts comprise gas outlet pipe (7) and liquid discharge tube;
Described sample introduction parts are connected with reactor (6) by the described control assembly that enters with carrier body, and reactor (6) is connected with gas-liquid separator (8), and gas-liquid separator (8) is connected with the discharge parts by discharge controlling part, and gas and waste liquid are discharged;
The sample introduction parts and the carrier body that comprises reductive agent and carrier gas that comprise sample, by entering the effect of control assembly, sample and reductive agent are arranged in the into described reactor (6), after described reactor (6) reaction, reacted gas-liquid is entered described gas-liquid separator (8), by the effect of described carrier gas pipe (9) and discharge controlling part, gas, liquid are arranged respectively in the into described discharge parts, and discharged by discharging parts.
2. a kind of interrupted sample injection device according to claim 1 is characterized in that:
The described control assembly that enters comprises sampling pump (10), first stop valve (11) and peristaltic pump (5); Described discharge controlling part comprises described first stop valve (11) and described peristaltic pump (5);
Described current-carrying sample hose (4) is connected with sampling ring (3) one ends, and sampling ring (3) other end is connected with sampling pump with the sample introduction pump line of peristaltic pump (5) respectively by a threeway; In described sampling ring (3) and sampling pump (10) connecting line, be provided with described first stop valve (11); One end of described reactor (6) is connected with described sampling pump (10) with the sample pump line that goes out of described peristaltic pump (5) respectively by a threeway, and reactor (6) is provided with second stop valve (12) with sampling pump (10) connecting line;
The reductive agent pump line that advances of described reductive agent pipe (2) and described peristaltic pump (5) is connected; The reductive agent pump line that goes out of described peristaltic pump (5) is connected with described reactor (6); Described carrier gas pipe (9) is connected with described reactor (6);
The endpiece of described reactor (6) is connected with gas-liquid separator (8), and described gas-liquid separator (8) comprises gas outlet pipe (7) and liquid discharge tube; The liquid discharge tube mouth of described gas-liquid separator (8) is connected with described sewer pipe (1) by described peristaltic pump (5).
3. a kind of interrupted sample injection device according to claim 1 is characterized in that:
The described control assembly that enters comprises sampling pump (10), reductive agent pump (15) and stop valve group; Described discharge controlling part comprises described peristaltic pump (5);
Described current-carrying sample hose (4) is connected with the 3rd stop valve (13) one ends; The other end of described the 3rd stop valve (13) is connected with sampling pump (10) with described sampling ring (3) respectively by threeway, and is provided with the 4th stop valve (18) in the pipeline of the 3rd stop valve (13) and sampling pump (10); Described sampling pump (10) is connected with described reactor (6) with the 6th stop valve (14) by the 5th stop valve (19) successively; The other end of described sampling ring (3) is connected with described reactor (6) by the 6th stop valve (14);
Described reductive agent pipe (2) is connected with described reductive agent pump (15) by the 7th stop valve (17); Described reductive agent pump (15) is connected with described reactor (6) by the 8th stop valve (16); Described carrier gas pipe (9) is connected with described reactor (6);
The other end of described reactor (6) is connected with gas-liquid separator (8), and described gas-liquid separator comprises gas outlet pipe (7) and liquid discharge tube; The liquid discharge tube mouth of described gas-liquid separator (8) is connected with described sewer pipe (1) by described peristaltic pump (5).
4. according to claim 2 or 3 described a kind of interrupted sample injection devices, it is characterized in that:
Described sampling pump (10) and reductive agent pump (15) all are syringe pumps.
5. a kind of interrupted sample injection device according to claim 1 is characterized in that:
Described interrupted sample injection device is arranged in the atomic fluorescence spectrometer.
CNU2007201700406U 2007-08-03 2007-08-03 Intermittent injection sampling device Expired - Lifetime CN201075081Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101576494B (en) * 2009-04-09 2010-09-29 广州大学 Method for eliminating measurement errors of hydride-generation atomic fluorescence method
CN101387651B (en) * 2008-10-08 2012-05-16 中国科学院南海海洋研究所 Automatic sample handling system and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101387651B (en) * 2008-10-08 2012-05-16 中国科学院南海海洋研究所 Automatic sample handling system and control method thereof
CN101576494B (en) * 2009-04-09 2010-09-29 广州大学 Method for eliminating measurement errors of hydride-generation atomic fluorescence method

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C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee

Owner name: BEIJING RUIGUANG INSTRUMENT CO., LTD.

Free format text: FORMER NAME: BEIJING LWL INSTRUMENT CO., LTD.

CP03 Change of name, title or address

Address after: 100015, M5 building, 5 floors, workshop of Seven Star Huadian Industrial Park, No. 1, Jiuxianqiao East Road, Beijing, Chaoyang District

Patentee after: Beijing Ruiguang Instrument Co., Ltd.

Address before: 100016, M5 building, No. 1 East Jiuxianqiao Road, Beijing, Chaoyang District

Patentee before: Beijing LWL Instrument Co., Ltd.

ASS Succession or assignment of patent right

Owner name: BEIJING BOHUI INNOVATION TECHNOLOGY CO., LTD.

Free format text: FORMER OWNER: BEIJING RUIGUANG INSTRUMENT CO., LTD.

Effective date: 20141024

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 100015 CHAOYANG, BEIJING TO: 102206 CHANGPING, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20141024

Address after: 102206 No. 9 middle road, Changping District life science and Technology Park, Beijing

Patentee after: Beijing Bohui Innovation Technology Co., Ltd.

Address before: 100015, M5 building, 5 floors, workshop of Seven Star Huadian Industrial Park, No. 1, Jiuxianqiao East Road, Beijing, Chaoyang District

Patentee before: Beijing Ruiguang Instrument Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20080618