CN205809091U - Single channel multiparameter flow injection analyzer - Google Patents
Single channel multiparameter flow injection analyzer Download PDFInfo
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- CN205809091U CN205809091U CN201620686046.8U CN201620686046U CN205809091U CN 205809091 U CN205809091 U CN 205809091U CN 201620686046 U CN201620686046 U CN 201620686046U CN 205809091 U CN205809091 U CN 205809091U
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- injection analyzer
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Abstract
This utility model relates to a kind of single channel multiparameter flow injection analyzer, including sampling system and analysis system；Described sampling system includes: sampling unit, dilution unit and current-carrying groove, and the first sampling needle of described sampling unit connects described analysis system, and the second sampling needle connects the first proportional valve of described dilution unit；Described analysis system includes delivery pump, pretreatment unit, the first switching valve, the second proportional valve, reaction member and the detector unit being sequentially connected, the second switching valve it is provided with in described reaction member, described detector unit includes that filter set, described filter set comprise the optical filter of at least two kinds of different wave lengths.This utility model has the advantage such as simple in construction, high, the single channel multiple parameters of mensuration of integrated level.
Description
Technical field
This utility model relates to flow injection analyzer, particularly to a kind of single channel multiparameter flow injection analyzer.
Background technology
Flow Injection Analysis (Flow Injection Analysis, be abbreviated as FIA) is widely used in water quality detection, soil
Earth sample analysis, agricultural and the field such as environmental monitoring, Food & Drink, flow injection analyzer in the market wants one
Platform is analyzed and is realized multiparameter on main frame and measure simultaneously, typically by switching different parameters passage or in same parameters passage manually
The different stream of switching, optical system realize, but there is following defect:
1, want to measure multiple parameter, need to configure multiple analysis channel, as surveyed 11 chemical parameters, it is necessary to configuration 11
Individual chemical analysis methods passage, had the most both added the complexity of flow path designs, had expanded again the volume of device；
2, single analysis channel is set, when needs measure multiple chemical parameters, manually changes pipeline and optical filter, so
Considerably increase operation easier, reduce sample analysis efficiency；
3, existing flow injection analyzer must match proportional diluter before automatic sampler, and the ratio of apolegamy is dilute
Releasing device needs independent power supply to power and independent serial ports and host communication, can dilute with passing ratio after apolegamy proportional diluter
Device and automatic sampler with the use of carrying out the preparation of standard sample, the dilution etc. of the sample that exceeds standard, device is complicated, it is numerous to operate
Miscellaneous.
Utility model content
In order to solve the deficiency in above-mentioned prior art, this utility model provides a kind of simple in construction, integrated level
Flow injection analyzer high, that automatically determine without parameters multiple in the single channel of proportional diluter.
The purpose of this utility model is achieved through the following technical solutions:
A kind of single channel multiparameter flow injection analyzer, including sampling system and analysis system；
Described sampling system includes: sampling unit, dilution unit and current-carrying groove, and the first sampling needle of described sampling unit is even
Logical described analysis system, the second sampling needle connects the first proportional valve of described dilution unit；
Delivery pump that described analysis system includes being sequentially connected, pretreatment unit, the first switching valve, the second proportional valve, anti-
Answering unit and detector unit, be provided with the second switching valve in described reaction member, described detector unit includes filter set, described filter
Mating plate group comprises the optical filter of at least two kinds of different wave lengths.
According to above-mentioned flow injection analyzer, it is preferable that described sampling unit include specimen disc, transmission arm and with institute
State the first sampling needle, the second sampling needle that transmission arm is connected.
According to above-mentioned flow injection analyzer, it is preferable that described dilution unit includes that the diluent being sequentially connected with stores
Container, sequential injection device, hybrid ring and the first proportional valve, described sequential injection device stores container extraction quantitatively from described diluent
Diluent, sample to be diluted mixes in described hybrid ring with quantitative diluent, after dilution after described first proportional valve is quantitative
Sample is stored in specimen disc designated samples pipe；
According to above-mentioned flow injection analyzer, it is preferable that it is two or more than two that described diluent stores container.
According to above-mentioned flow injection analyzer, it is preferable that described sequential injection device is two or more than two.
According to above-mentioned flow injection analyzer, alternatively, described current-carrying groove includes current-carrying district and at least one cleaning area.
According to above-mentioned flow injection analyzer, it is preferable that described current-carrying groove includes that two cleaning areas, a cleaning area are put
Put deionized water cleanout fluid, for cleaning the outer wall of first/second sampling needle；Cleanout fluid is placed in another cleaning area, for clear
Wash the inwall of first/second sampling needle.
According to above-mentioned flow injection analyzer, alternatively, described pretreatment unit include dilute module, distillation module and
Dialysis module, makes to react fluid communication dilution module or distillation module or dialysis module by the switching of the first switching valve.
According to above-mentioned flow injection analyzer, it is preferable that described reaction member include hybrid reaction circle, cadmium reduction column and
Heating collar, whether described cadmium reduction column accesses reaction stream is determined by the switching of the second switching valve.
According to above-mentioned flow injection analyzer, it is preferable that described detector unit is visible spectrophotometry detector unit.
According to above-mentioned flow injection analyzer, it is preferable that described detector unit includes filter set and light path flow cell.
According to above-mentioned flow injection analyzer, alternatively, described filter set comprises the optical filter of 9 kinds of different wave lengths.
According to above-mentioned flow injection analyzer, alternatively, described light path flow cell is 10mm light path flow cell.
According to above-mentioned flow injection analyzer, alternatively, described delivery pump is peristaltic pump.
According to above-mentioned flow injection analyzer, alternatively, described first proportional valve is six-way valve.
According to above-mentioned flow injection analyzer, alternatively, described second proportional valve is six-way valve.
According to above-mentioned flow injection analyzer, it is preferable that described first switching valve is four-position valve.
According to above-mentioned flow injection analyzer, it is preferable that described second switching valve is four-way revolving valve.
Compared with prior art, this utility model has the beneficial effect that
1, this utility model is by brand-new flow path designs and the first switching valve, the introducing of the second switching valve, according to difference
Detection parameter automatically switch different pre-processing modules and reaction module, and at same instrument by the way of common flow path
The automatic detection of multiple parameters in inside achieving single channel.
2, this utility model uses the filter set comprising 9 kinds of different wave length optical filters, it is achieved needed for different detection parameters
Automatically configuring of specific wavelength optical filter.
3, it is provided with dilution unit in sampling system of the present utility model, it is possible to achieve diluted sample, the joining of standard sample
System etc., it is not necessary to arranging extra proportional diluter, apparatus structure is simple, integrated level is high, volume is little.
Accompanying drawing explanation
Fig. 1 is the structure diagram of the single channel multiparameter flow injection analyzer sampling system of this utility model embodiment 1；
Fig. 2 is the structure diagram of the single channel multiparameter flow injection analyzer analysis system of this utility model embodiment 1.
Detailed description of the invention
Fig. 1-2 and following description describe optional embodiment of the present utility model with teaching those skilled in the art how
Implement and reproduce this utility model.In order to instruct technical solutions of the utility model, simplify or eliminated some conventional aspects.This
Skilled person should be appreciated that be derived from these embodiments modification or replace will be in the range of this utility model.This area
Skilled artisans appreciated that following characteristics can combine to form multiple modification of the present utility model in every way.Thus, originally
Utility model is not limited to following embodiment, and is only limited by claim and their equivalent.
Embodiment 1
Fig. 1 schematically illustrates the structure diagram of the flow injection analyzer sampling system of the present embodiment, and Fig. 2 is schematic
Give the present embodiment flow injection analyzer analyze system structure diagram, as shown in Figure 1, 2,
Described sampling system includes:
Sampling unit, described sampling unit includes: specimen disc 11, transmission arm 12, be connected with transmission arm 12 first sampling
Pin 13, the second sampling needle 14 being connected with transmission arm 12, described first sampling needle 13 connects described analysis system, treats for absorption
Analyze sample；Described second sampling needle 14 connects dilution unit, is used for drawing sample to be diluted；
Dilution unit, described dilution unit includes: the diluent storage container 21, the sequential injection device 221/ that are sequentially connected with are suitable
Sequence syringe 222, hybrid ring 23 and the first proportional valve 24 connecting described second sampling needle 14, described sequential injection device 221/ is suitable
Sequence syringe 222 stores container 21 from described diluent and aspirates quantitative diluent, and sample to be diluted is through described first proportional valve 24
Mixing in described hybrid ring 23 with quantitative diluent after quantitatively, dilute, after dilution, sample is stored in specimen disc 11 designated samples pipe
In；
Current-carrying groove, described current-carrying groove is divided into 3 regions, and the respectively first cleaning area 31, current-carrying district 32 and second are clear
Washing district 33, deionized water is placed in described first cleaning area, for cleaning the outer wall of first sampling needle the 13, second sampling needle 14；Carry
Current-carrying reagent is placed in stream district, is used for being analysed to sample and pushes analysis system, to save sample；Second cleaning area 33 is placed with specially
The cleaning reagent of door, for cleaning first sampling needle the 13, second sampling needle 14 inwall, prevents the intersection between different sample dirty
Dye；
Delivery pump 4 that described analysis system includes being sequentially connected by the road, pre-processing module 51/ pre-processing module 52,
One switching valve the 53, second proportional valve 6, reaction member 7 and detector unit 8, described reaction member 7 includes that the mixing being sequentially connected with is anti-
The 71, second switching valve 72, heating collar 73 should be enclosed and access the cadmium reduction column 74 of reaction stream through described second switching valve 72, according to
Different detection demands carries out the switching of the second switching valve 72 so that cadmium reduction column 74 and reaction fluid communication or disconnection；Described
The switching of the first switching valve 53 makes pre-processing module 51 or pre-processing module 52 connection reaction stream；Described detector unit 8 is wrapped
Including filter set, described filter set comprises the optical filter of at least two kinds of different wave lengths, and the different detection parameter that can automatically switch is special
Fixed optical filter.
When sample is carried out Multi-parameter measurement, the corresponding different detection method of different detection parameters, different detection sides
Method needs different pre-treating methods, namely for different detection parameters, the sample-pretreating method of needs and reaction are single
There is certain diversity in unit, therefore:
Further, described pretreatment unit includes that different pre-processing modules is (such as dilution module, distillation module, dialysis
Module), make stream selectively communicate with arbitrary pre-processing module by the switching of the first switching valve.
Further, described reaction member includes different chemical reaction streams (such as whether accessing cadmium reduction column), passes through
The switching of the second switching valve makes to react stream and connects with cadmium reduction column or disconnect.
In order to expand the application of dilution unit, it can be two or more than two that described diluent stores container, it is simple to storage
Deposit different diluents；Described sequential injection device can be two or more than two, it is simple to the different dilutions of preparation variable concentrations
Liquid.
Advantage of this embodiment is that: in sampling system, be provided with dilution unit, it is not necessary to extra proportional diluter is set,
Device integrated level is high, volume is little；By flow path designs and the first switching valve, the introducing of the second switching valve and detector unit can be cut
Change the use of filter set, the automatic detection of multiple parameters in achieving single channel in same instrument.
Embodiment 2
Single channel multiparameter flow injection analyzer according to embodiment 1 is in the application of field of water quality detection.In this application
In example, sampling system is automatic sampler, including being arranged on the current-carrying groove of automatic sampler base, specimen disc, transmission arm, installs
The first sampling needle on transmission arm and the second sampling needle, the first proportional valve being arranged on automatic sampler sidewall is (such as clematis stem
Valve), hybrid ring and two sequential injection devices, and two reagent bottle, one equipped with pure water, a sodium hydroxide equipped with 1M is molten
Liquid, can prepare difference with dilute sample by two sequential injection devices by two sequential injection devices and the first proportional valve
The matrix of concentration is that the standard sample of 0.025M sodium hydroxide is to make standard curve.Delivery pump in this application examples analysis system
For peristaltic pump, the second proportional valve is six-way valve, and the first switching valve is four-position valve, and the second switching valve is four-way revolving valve, pre-treatment
Comprising dilution module and distillation module in unit, reaction member includes mixing circle, cadmium reduction column and heating collar；Detector unit includes
Filter set containing 9 kinds of different wave lengths and 10mm light path flow cell.
The workflow of above-mentioned single channel multiparameter flow injection analyzer is as follows:
The making of standard curve: the second sampling needle takes standard sample on specimen disc, the most laggard through the first proportional valve
Entering hybrid ring, sequential injection device aspirates quantitative pure water from reagent bottle and injects hybrid ring, mixes in hybrid ring with standard sample,
During after dilution, standard sample is stored in specimen disc formulation sample cell；Repeating aforesaid operations, extract different amounts of pure water, preparation is different dense
The standard sample of degree；
Auto injection: the sample (water sample or various criterion sample) in the first sampling needle pipette samples dish, through peristaltic pump
Power, enters reaction member under the promotion of current-carrying solvent (such as water) in current-carrying groove；
Sample analysis: being selected corresponding pre-processing module according to difference detection parameter by the first switching valve, sample is through second
Connection cadmium reduction is determined by the second switching valve according to the ad hoc approach of detection parameter after the reaction of proportional valve reaction member quantitative, general
Post or directly detect, detector unit switches corresponding optical filter and carries out after detection is analyzed by computer processing system number
According to analysis, obtain the parameter values for detection of sample.
Above-mentioned embodiment should not be construed as the restriction to this utility model protection domain.Such as the order in this utility model
It can be one or more that syringe, diluent store container, and in pretreatment unit and reaction member, switchable module is the most not
It is confined to module or the method mentioned in embodiment, as long as pre-treating method of the prior art or chemical reaction method are equal
Can.Of the present utility model it is crucial that: by switching light filter group in flow path designs, the switching introducing of valve and detector unit
Arrange, it is achieved that in single channel, multiple parameters automatically determines；Dilution unit is set in sampling system simultaneously, simplifies device.
In the case of without departing from this utility model spirit, it is new that any type of change making utility model all should fall into this practicality
Within the protection domain of type.
Claims (10)
1. a single channel multiparameter flow injection analyzer, including sampling system and analysis system, it is characterised in that:
Described sampling system includes: sampling unit, dilution unit and current-carrying groove, and the first sampling needle of described sampling unit connects institute
Stating analysis system, the second sampling needle connects the first proportional valve of described dilution unit；
Described analysis system includes the delivery pump being sequentially connected, pretreatment unit, the first switching valve, the second proportional valve, reacts single
Unit and detector unit, be provided with the second switching valve in described reaction member, described detector unit includes filter set, described optical filter
Group comprises the optical filter of at least two kinds of different wave lengths.
Flow injection analyzer the most according to claim 1, it is characterised in that: described sampling unit includes specimen disc, biography
Swing arm and the first sampling needle being connected with described transmission arm, the second sampling needle.
Flow injection analyzer the most according to claim 1, it is characterised in that: described dilution unit includes being sequentially connected with
Diluent stores container, sequential injection device, hybrid ring and the first proportional valve.
Flow injection analyzer the most according to claim 1, it is characterised in that: described current-carrying groove includes current-carrying district and at least
One cleaning area.
Flow injection analyzer the most according to claim 1, it is characterised in that: described pretreatment unit includes diluting mould
Block, distillation module and dialysis module.
Flow injection analyzer the most according to claim 1, it is characterised in that: described reaction member includes hybrid reaction
Circle, cadmium reduction column and heating collar.
Flow injection analyzer the most according to claim 1, it is characterised in that: described detector unit is visible spectrophotometric
Method detector unit.
Flow injection analyzer the most according to claim 1, it is characterised in that: described first proportional valve and the second proportional valve
For six-way valve.
Flow injection analyzer the most according to claim 1, it is characterised in that: described first switching valve is four-position valve.
Flow injection analyzer the most according to claim 1, it is characterised in that: described second switching valve is four-way revolution
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686046.8U CN205809091U (en) | 2016-06-30 | 2016-06-30 | Single channel multiparameter flow injection analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620686046.8U CN205809091U (en) | 2016-06-30 | 2016-06-30 | Single channel multiparameter flow injection analyzer |
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| Publication Number | Publication Date |
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| CN205809091U true CN205809091U (en) | 2016-12-14 |
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| CN201620686046.8U Active CN205809091U (en) | 2016-06-30 | 2016-06-30 | Single channel multiparameter flow injection analyzer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112243497A (en) * | 2018-05-28 | 2021-01-19 | 株式会社岛津制作所 | Automatic sample introduction device, chromatograph, automatic sample introduction method, and analysis method |
| WO2021027393A1 (en) * | 2019-08-13 | 2021-02-18 | 深圳市康立生物医疗有限公司 | High-speed electrolyte analyzer |
-
2016
- 2016-06-30 CN CN201620686046.8U patent/CN205809091U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112243497A (en) * | 2018-05-28 | 2021-01-19 | 株式会社岛津制作所 | Automatic sample introduction device, chromatograph, automatic sample introduction method, and analysis method |
| WO2021027393A1 (en) * | 2019-08-13 | 2021-02-18 | 深圳市康立生物医疗有限公司 | High-speed electrolyte analyzer |
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