CN207689371U - Ultralow memory effect atomic fluorescence trace mercury vapourmeter is miniaturized - Google Patents
Ultralow memory effect atomic fluorescence trace mercury vapourmeter is miniaturized Download PDFInfo
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- CN207689371U CN207689371U CN201721780520.4U CN201721780520U CN207689371U CN 207689371 U CN207689371 U CN 207689371U CN 201721780520 U CN201721780520 U CN 201721780520U CN 207689371 U CN207689371 U CN 207689371U
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- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 title claims abstract description 49
- 229910052753 mercury Inorganic materials 0.000 title claims abstract description 42
- 230000003446 memory effect Effects 0.000 title claims abstract description 20
- 239000000523 sample Substances 0.000 claims abstract description 34
- 238000005070 sampling Methods 0.000 claims abstract description 26
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 230000004308 accommodation Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 13
- 238000001917 fluorescence detection Methods 0.000 claims description 11
- 239000013307 optical fiber Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 7
- 230000005284 excitation Effects 0.000 claims description 5
- 230000002572 peristaltic effect Effects 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 10
- 239000012159 carrier gas Substances 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 238000004445 quantitative analysis Methods 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 13
- 238000004458 analytical method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 239000012279 sodium borohydride Substances 0.000 description 5
- 229910000033 sodium borohydride Inorganic materials 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000000918 plasma mass spectrometry Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000012086 standard solution Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000000862 absorption spectrum Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229960002523 mercuric chloride Drugs 0.000 description 1
- LWJROJCJINYWOX-UHFFFAOYSA-L mercury dichloride Chemical compound Cl[Hg]Cl LWJROJCJINYWOX-UHFFFAOYSA-L 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000012488 sample solution Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
Abstract
The utility model provides a kind of ultralow memory effect atomic fluorescence trace mercury vapourmeter of micromation, including：Sampling system, gas ballast pump, chemical vapors occur reagent and introduce system, steam generation reaction system, Separate System of Water-jet, atomic fluorescence detecting system, heated for controlling temperature system；Reagent introducing system occurs with the sampling system, the gas ballast pump and the chemical vapors and is respectively communicated with respectively for the sample introduction end of the steam generating system, the sample outlet end of the steam generating system is connected to the Separate System of Water-jet, and the Separate System of Water-jet is connected to the atomic fluorescence detecting system；The heated for controlling temperature system includes electric heater unit, fan heat sink, temperature probe and lagging casing, and the lagging casing forms accommodation space on the outside of the atomic fluorescence detecting system, and the electric heater unit is used to heat for accommodation space.The analyzer of the application increases a carrier gas passage, while ensureing that heavy metal sample fast and effeciently carries out quantitative analysis, reduces the loss of sample ions beam, improves the accuracy and precision of instrument detection.
Description
Technical field
The present invention relates to ultralow memory effect atomic fluorescence trace mercury vapourmeter is miniaturized, belong to Environmental Analytical Chemistry and instrument
Technical field.
Background technology
Mercury is important heavy metal toxic contaminants component, is the pollutant of a kind of global concern.Mercury drinking water, food,
There is presence in seawater, soil, air particle, and easily absorbed by organism, is enriched with food chain and amplifies, to very
The health of more countries and regions causes significant damage, therefore is of great significance to the detection of mercury content in various media.
Accurate, the quick measurement of mercury element is modern environment monitoring field, safe diet superintendent office, analytical chemistry, sea
The focus and difficult point of foreign scientific attention.Since mercury has volatility, mercurous sample is in sampling, preservation, transport, sample pre-treatments mistake
Journey inevitably causes content loss；Simultaneously because mercury vapour is easy to adsorb in the condensation of detecting instrument surface, in pipeline again, cause
The memory effect of analytical instrument detection causes mercury element detection inaccurate.The memory effect of mercury is mainly the suction due to mercury to pipeline
Caused by attached property.
Present inventor has found that the detection of mercury element at present relies primarily on large scale commercial product atomic spectrograph under study for action
Device, including atomic absorption spectrum, hydride generator atomic fluorescence spectrophotometry, inductivity coupled plasma mass spectrometry etc..But these
Equipment instrument and weight are larger, and operating condition requires harshness, are unfavorable for carrying and on-site measurement, can not equally solve mercury element survey
Fixed memory effect problem.Existing instrument and equipment still cannot achieve the live mercury element for quickly, accurately analyzing trace.
Invention content
The present invention be solve existing mercury element analytical equipment can not field assay, measure memory effect, sensitive for a long time
The low and poor problem of anti-interference ability is spent, the present invention provides a kind of ultralow memory effect atomic fluorescence traces of micromation to survey mercury
The technical solution of instrument, use is as follows：
A kind of ultralow memory effect atomic fluorescence trace mercury vapourmeter of micromation, including：
Sampling system, gas ballast pump, chemical vapors occur reagent and introduce system, steam generation reaction system, gas-liquid separation system
System, atomic fluorescence detecting system, heated for controlling temperature system；
It is sent out respectively with the sampling system, the gas ballast pump and the chemical vapors at the sample introduction end of the steam generating system
Raw reagent introduces system and is respectively communicated with, and the sample outlet end of the steam generating system is connected to the Separate System of Water-jet, the gas
Liquid separation system is connected to the atomic fluorescence detecting system；
The heated for controlling temperature system includes electric heater unit, fan heat sink, temperature probe and lagging casing, the guarantor
Warm shell forms accommodation space on the outside of the atomic fluorescence detecting system, and the electric heater unit for accommodation space for adding
Heat.
Further, the steam generating system includes four-way reactor and reaction ring, the sampling system, the carrier gas
Pump and the chemical vapors occur reagent introducing system and are respectively communicated to the four-way reactor sample introduction end, described to react the one of ring
End is connected to the four-way reactor sample outlet end, and the other end of the reaction ring is connected to the Separate System of Water-jet.
Further, the sampling system includes the carrying channel being sequentially connected to, the first syringe pump and selection sampling valve, institute
Selection sampling valve is stated with a channel of four-way reactor to be connected.
Further, the gas ballast pump is inert gas, is connected with a channel of four-way reactor with certain flow rate.
Further, reagent occurs for the chemical vapors introduce system to include the reagent introduction passage and second being sequentially connected to
Syringe pump, the second syringe pump are connected with a channel of four-way reactor.
Further, the Separate System of Water-jet is provided with waste liquid passing away.
Further, atomic fluorescence detecting system includes：Atomic fluorescence detection window, atomic fluorescence fiber spectrometer and swash
Light emitting source, the atomic fluorescence detection window include four channels, and one of channel is connected with the Separate System of Water-jet, and two
A orthogonal channel is connected by optical fiber with excitation light source and atomic fluorescence fiber spectrometer respectively, and a remaining channel is
Exhaust gas passing away.
Further, four channels are conplane " ten " word configuration；Alternatively, three in four channels
Channel composition plane is "T"-shaped, the last one channel is vertical with the plane.
Further, the part of the intelligent acess atomic fluorescence detection window in atomic fluorescence detecting system and atomic fluorescence
Detection window is placed in the heated for controlling temperature system.
Further, peristaltic pump is provided on the waste liquid passing away, the wriggling flow rate pump is more than the first syringe pump
The sum of with the flow velocity of the second syringe pump.
The present invention builds integrated miniature atomic fluorescence mercury vapourmeter, to overcome by using chemical vapors method for generation
Existing analytical technology bottleneck, by increasing the heated for controlling temperature process of detecting system, it can be achieved that Trace Amount of Mercury in Environmental Samples element is low
Memory effect, quick, field assay.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of the ultralow memory effect atomic fluorescence trace mercury vapourmeter of micromation of the embodiment of the present invention；
Fig. 2 is micro- using the ultralow memory effect atomic fluorescence trace mercury vapourmeter detection 0-15 of micromation of the embodiment of the present invention
The canonical plotting that gram per liter mercury solution obtains；
Fig. 3 is micro- using the ultralow memory effect atomic fluorescence trace mercury vapourmeter detection 0-15 of micromation of the embodiment of the present invention
The signal graph that gram per liter mercury solution obtains.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Fig. 1 is the structural schematic diagram of the ultralow memory effect atomic fluorescence trace mercury vapourmeter of micromation of the present invention.Such as Fig. 1
Shown, described device includes sampling system Isosorbide-5-Nitrae, and 6, gas ballast pump 2, chemical vapors occur reagent and introduce system 3,5, and steam generation is anti-
Answer system 7,8, Separate System of Water-jet 9, atomic fluorescence detecting system 12,13,14,15,16, heated for controlling temperature system 18,19,20,
21；The sample introduction end of the steam generating system respectively with the sampling system Isosorbide-5-Nitrae, 6, the gas ballast pump 2 and the chemical vapors
Reagent introducing system 3,5 occurs to be respectively communicated with, the sample outlet end of the steam generating system is connected to the Separate System of Water-jet 9,
The Separate System of Water-jet 9 is connected to the atomic fluorescence detecting system 12,13,14,15,16；The heated for controlling temperature system packet
Electric heater unit 18, fan heat sink 19, temperature probe 20 and lagging casing 21 are included, the lagging casing 21 is in the atom
12,13,14,15,16 outside of fluorescence detecting system forms accommodation space, and the electric heater unit 18 for accommodation space for adding
Heat.
The sampling system includes：Carrying channel 1, the first syringe pump 4 select sampling valve 6.Device piping connection is PTFE
Pipeline, internal diameter 1mm, outer diameter 1.6mm, the order of connection are that carrying channel 1 connects the first syringe pump 4, the connection selection of the first syringe pump 4
Sampling valve 6 selects sampling valve 6 to be connected with a channel of four-way reactor 7.First syringe pump 4 and selection sampling valve 6 can
It is replaced using peristaltic pump and six-way injection valve, optimum condition is the first syringe pump 4 and selection sampling valve 6, flow velocity 10mL/min.
The gas ballast pump 2 is inert gas, is connected with a channel of four-way reactor 7 with 400mL/min flow velocitys.The chemical vapors
Reagent occurs to introduce system to be that reagent introduction passage 3 connects the second syringe pump 5, one of the second syringe pump 5 and four-way reactor 7
Channel is connected.Second syringe pump 5 can utilize peristaltic pump to replace.Optimum condition is syringe pump, flow velocity 1.5mL/min.It is described
Steam generating system includes：Four-way reactor 7 and reaction ring 8.The reaction ring is PTFE material pipelines, internal diameter 1mm, outer diameter
It is cyclic annular to be wound up as diameter 4cm by 1.6mm, length 50cm.Three channels of four-way reactor respectively with sampling valve 6, carrier gas 7, steam
The second syringe pump 5 connection of reagent passage connection occurs, the 4th channel is connect with reaction ring 8, reacts ring 8 and gas-liquid separation
Device 9 is connected.The Separate System of Water-jet is gas-liquid separator 9, and separation cavity is less than 2mL.
Gas-liquid separator 9 respectively with react ring 8, atomic fluorescence detection window 12 and waste liquid passing away 11 are connected.Institute
Stating atomic fluorescence detecting system includes：Atomic fluorescence detection window 12, atomic fluorescence fiber spectrometer 13, excitation light source --- mercury
Element hollow cathode lamp 14 and diameter 1.0mm optical fiber 15,16.Optical fiber 14 is connected with mercury excitation light source 14, optical fiber 15 and fluorescence light
Optical fiber spectrograph 13 is connected.The atomic fluorescence detection window 12 is containing there are four channel, one of channel and 9 phases of gas-liquid separator
Even, two orthogonal channels are connected with optical fiber 15 and optical fiber 16 respectively, and a remaining channel is as exhaust gas passing away 17.
Four channels can be conplane " ten " word configuration；Or three channels constitute same plane T-shape, the last one
The channel configuration vertical with the plane；Optimum condition is that three channels constitute same plane T-shape, another channel is flat with this
The vertical configuration in face.The atomic fluorescence fiber spectrometer 13 can utilize photomultiplier to replace, and optimum condition is atomic fluorescence
Fiber spectrometer 13.
Optical fiber 15 and optical fiber 16 in atomic fluorescence detecting system access part and the atom of atomic fluorescence detection window 12
Fluoroscopic examination window 12 is placed in heated for controlling temperature system.Detection interval twice, heated for controlling temperature are eliminated memory effect temperature and are taken the photograph for 380
Family name's degree, detection process temperature are reduced to 40 degrees Celsius.The waste liquid passing away includes peristaltic pump 10 and waste liquid discharge line 11.Institute
Flow velocity the sum of of the wriggling flow rate pump more than the second syringe pump 5 that the first syringe pump 4 and steam generation reagent introduce is stated, about
12mL/min.The gas outlet channels 17 are discharged into air after exhaust gas to draught cupboard or absorption processing is discharged.Wherein, steam is sent out
The second syringe pump 5 that raw reagent introduces is for introducing KBH4 reagents, the mercury in sample to be tested for restoring sampling system entrance,
Mercury vapour is generated, is separated from water, mercury simple substance steam is detected.Fig. 2 and Fig. 3 is respectively ultralow using the micromation of the embodiment of the present invention
Memory effect atomic fluorescence trace mercury vapourmeter detects the canonical plotting and signal graph that 0-15 micrograms are obtained per mercuric chloride solution.
Embodiment 1：
Acquisition actual sample includes river water, well water, snow-broth, the various representative actual samples of agricultural land soil sample four.Respectively
It is simply pre-processed, key step includes：
1) water sample directly utilizes 0.45 micron membrane filter to filter, and certain volume hydrochloric acid acidified sample is added, and final acidity is
0.1 mol/L。
2) pedotheque weighs 1.000 grams of pedotheques, and 10mL is added, and 0.1mol/L aqueous hydrochloric acid solutions carry out ultrasonic leaching
It carries.Leaching liquor is filtered using 0.45 micron membrane filter.Prepare 0,0.1,1,2,5,10,15 μ g/L of mercury standard solution.
After the completion of sample treatment directly quantitative analysis, acquired results and this hair are carried out using inductivity coupled plasma mass spectrometry
Bright device testing result carries out result comparison.
The specific detection and analysis step of apparatus of the present invention is：
Step 1：It shifts mercury standard solution and actual sample solution to be measured is spare to sample introduction bottle.
Step 2：Sodium borohydride solution is prepared, 0.5% (w/w) NaOH aqueous solutions is prepared first, is then dissolved in NaBH4
The alkaline solution, a concentration of 1% (w/w) of NaBH4.
Step 3：Heated for controlling temperature system is opened, is heated to 380 DEG C, argon gas is passed through and keeps 1min, rinse-system.Then it drops
Temperature is to 40 DEG C.
Step 4：Open detection system, sample intake passage pumps first enters deionized water solution, and sodium borohydride is with 1.5mL/
Min flow velocitys enter system, keep signal stabilization.
Step 5：The mercurous solution to be measured of 0.50mL enters system, flow velocity 10mL/min by sampling valve (6).
Step 6：Record generates fluorescence signal.
Step 7：Repeat Step 3: four, five, six to all standard mercury solutions and practical sample to be tested measurement terminate.
Step 8：Sample channel and sodium borohydride channel are converted into deionized water solution, and cleaning system closes system.
It is as shown in table 2 that mercury standard solution analysis result is measured for a long time.It should be the result shows that present apparatus analysis memory effect pole
Low, the larger sample analysis error of concentration difference is smaller, is suitable for mercury element in a large amount of actual environment samples and measures.
Actual environment water sample analysis result is as shown in table 1.It should be the result shows that the present apparatus analyzes a variety of environmental water sample results
It is consistent with inductivity coupled plasma mass spectrometry analysis result, it was demonstrated that this method result is reliable, accurate.
1 inductivity coupled plasma mass spectrometry of table and apparatus of the present invention analysis environmental water sample and the comparison of pedotheque mercury content
Table 2 measures mercury standard solution memory effect analysis result for a long time
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, it will be understood by those of ordinary skill in the art that：It still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features；
And these modifications or replacements, various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution spirit and
Range.
Claims (10)
1. a kind of ultralow memory effect atomic fluorescence trace mercury vapourmeter of micromation, which is characterized in that including：
Sampling system (Isosorbide-5-Nitrae, 6), gas ballast pump (2), chemical vapors occur reagent and introduce system (3,5), steam generation reaction system
(7,8), Separate System of Water-jet (9), atomic fluorescence detecting system (12,13,14,15,16), heated for controlling temperature system (18,19,20,
21)；
The sample introduction end of the steam generation reaction system respectively with the sampling system (Isosorbide-5-Nitrae, 6), the gas ballast pump (2) and described
Reagent occur for chemical vapors introduce system (3,5) to be respectively communicated with, and the sample outlet end of the steam generation reaction system is connected to described
Separate System of Water-jet (9), the Separate System of Water-jet (9) connect with the atomic fluorescence detecting system (12,13,14,15,16)
It is logical；
The heated for controlling temperature system includes electric heater unit (18), and fan heat sink (19), temperature probe (20) and heat preservation are outer
Shell (21), the lagging casing (21) form on the outside of the atomic fluorescence detecting system (12,13,14,15,16) and accommodate sky
Between, the electric heater unit (18) is used to heat for accommodation space.
2. mercury vapourmeter according to claim 1, which is characterized in that the steam generation reaction system includes four-way reactor
(7) reagent occurs and introduces system with reaction ring (8), the sampling system (Isosorbide-5-Nitrae, 6), the gas ballast pump (2) and the chemical vapors
System (3,5) is respectively communicated to four-way reactor (7) the sample introduction end, and it is anti-that described one end for reacting ring (8) is connected to the four-way
Device (7) sample outlet end, the other end of the reaction ring (8) is answered to be connected to the Separate System of Water-jet (9).
3. mercury vapourmeter according to claim 2, which is characterized in that the sampling system (Isosorbide-5-Nitrae, 6) includes the load being sequentially connected to
One of circulation road (1), the first syringe pump (4) and selection sampling valve (6), the selection sampling valve (6) and four-way reactor (7)
Channel is connected.
4. mercury vapourmeter according to claim 2, which is characterized in that the gas ballast pump (2) be inert gas, with certain flow rate with
One channel of four-way reactor (7) is connected.
5. mercury vapourmeter according to claim 2, which is characterized in that reagent occurs for the chemical vapors introduce system to include sequentially
The reagent introduction passage (3) and the second syringe pump (5) of connection, a channel phase of the second syringe pump (5) and four-way reactor (7)
Even.
6. mercury vapourmeter according to claim 1 or claim 2, which is characterized in that the Separate System of Water-jet (9) is provided with waste liquid discharge
Channel (11).
7. mercury vapourmeter according to claim 1 or claim 2, which is characterized in that atomic fluorescence detecting system (12,13,14,15,16)
Including：Atomic fluorescence detection window (12), atomic fluorescence fiber spectrometer (13) and excitation light source (14), the atomic fluorescence inspection
It includes four channels to survey window (12), and one of channel is connected with the Separate System of Water-jet (9), and two orthogonal logical
Road is connected by optical fiber with excitation light source (14) and atomic fluorescence fiber spectrometer (13) respectively, and a remaining channel is arranged for exhaust gas
Go out channel (17).
8. mercury vapourmeter according to claim 7, which is characterized in that four channels are conplane " ten " word configuration；
Alternatively, three channels in four channels are constituted, plane is "T"-shaped, the last one channel is vertical with the plane.
9. mercury vapourmeter according to claim 1 or claim 2, which is characterized in that atomic fluorescence detecting system (12,13,14,15,16)
In the part of intelligent acess atomic fluorescence detection window (12) be placed in the heated for controlling temperature with atomic fluorescence detection window (12)
In the accommodation space of system.
10. mercury vapourmeter according to claim 6, which is characterized in that be provided with peristaltic pump on the waste liquid passing away (11)
(10), the wriggling flow rate pump is more than the sum of the flow velocity of the first syringe pump (4) and the second syringe pump (5).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007908A (en) * | 2017-12-19 | 2018-05-08 | 农业部环境保护科研监测所 | Ultralow memory effect atomic fluorescence trace mercury vapourmeter is miniaturized |
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| CN108007908A (en) * | 2017-12-19 | 2018-05-08 | 农业部环境保护科研监测所 | Ultralow memory effect atomic fluorescence trace mercury vapourmeter is miniaturized |
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