CN108535498A - Aluminium automatic analysing apparatus and analysis method in water - Google Patents
Aluminium automatic analysing apparatus and analysis method in water Download PDFInfo
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- CN108535498A CN108535498A CN201810193886.4A CN201810193886A CN108535498A CN 108535498 A CN108535498 A CN 108535498A CN 201810193886 A CN201810193886 A CN 201810193886A CN 108535498 A CN108535498 A CN 108535498A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
Abstract
The invention discloses aluminium automatic analysing apparatus and analysis methods in a kind of water.The automatic analysing apparatus includes automatic sampling part, solution transport portion, chemical flow path, detector and data processing stations；The chemistry flow path includes electronic multiposition valve, five peristaltic pump tubes, winding reaction tube, threeway, capillary connecting tube, sample loop, container bottle and flow cell；The electronic multiposition valve has at least six interfaces, and there are two states for tool；First state is load sample state, and the second state is note sample state.Aluminium automatic analysing apparatus can continuously and automatically test sample in the water of the present invention, and test speed is up to 45 samples/h；The high sensitivity of test, range of linearity 0.005mg/L 0.5mg/L, detection limit can be down to 0.001mg/L, and accuracy is good；Precision is high, reproducible.
Description
Technical field
The present invention relates to aluminium automatic analysing apparatus and analysis methods in water, more particularly to use flow injection colorimetric method for determining
The automatic analysing apparatus and analysis method of aluminium in water.
Background technology
Aluminium is the index that must be surveyed in the water bodys such as drinking water as a kind of metallic element.China's drinking water standard is examined
First method of the aluminium detection in method GB/T 5750.6 is Chrome azurol s colorimetry, and this method high sensitivity, interference is few,
Reagent is easy to get, convenient to carry out.And salicyl fluorone-halogenated phosphates spectrophotometric rule is done since sensitivity is low
It disturbs factor and is listed in the second method, sampling Graphite Furnace Atomic Absorption and inductively coupled plasma emission spectrography inductively coupled plasma more
Body emits mass spectrum rule due to instrument complexity, is not easy to implement and divide row third method, the 4th method and the 5th method.
Main problem existing for the first method Chrome azurol s colorimetry in water in aluminium measurement GB/T 5750.6 is at present
After reagent is added, need to detect after placing 30min.Cause sample analysis time long, and needs successively by hand to add in the sample
Add chrome azurol S solution, emulsifier solution and bromohexadecane based sols and buffer solution, it is poor to manually add reagent accuracy, labor
Momentum is big, therefore is badly in need of aluminium analytical equipment in full automatic water and solves this deficiency.
Flowing injecting analysis technology was from (Ruzicka J, Hansen E H, Flow Injection in 1975
Analysis, Wiley, New York, 1981) since proposing, automation simple with its, convenient, easy to implement and can be online right
Sample carries out the advantage of pre-treatment, is widely used in chemical analysis (Fang Zhaolun (Fang Zhaolun) .Flow
Injection analysis method (flow injection analysis) .Beijing (Beijing)：(science goes out Science Press
Version society), 1999).The method that flow injection (FI) can be used surveys aluminium in water, can add reagent automatically, automatically determine sample and ginseng
Than absorbance, automatic drawing curve is automatically performed the concentration mensuration of aluminium in sample, not only reproducible, and accuracy is high, and
And it is easy to operate, fast.
Invention content
Present invention aims at aluminium automatic analysing apparatus and analysis methods in a kind of water of offer.Aluminium automatically analyzes dress in the water
It sets sensitivity and accuracy is high, meet the requirements of GB/T 5750.6, and easy to operate, analyze speed is fast, and precision is high.
The present invention solves technical problem and adopts the following technical scheme that：Aluminium automatic analysing apparatus in a kind of water comprising automatic
Sample introduction part, solution transport portion, chemical flow path, detector and data processing stations；
Automatic sampling part includes sample introduction arm, sampling needle, sample disc, sample cell, first motor, the second motor and third electricity
Machine；
The sample cell is used to place the standard solution or sample to be tested of known concentration, and the sampling needle is for acquiring sample
Invisible spectro sample, and the sample of acquisition is delivered to solution transport portion by sample introduction arm；
The sample introduction arm is used for fixed sample needle；The sample disc is for placing sample cell；The first motor be used for into
The up and down motion of sample arm, when sample introduction arm moves downward, be the standard solution of known concentration in order to be placed in pipette samples pipe or
Sample to be tested when sample introduction arm moves upwards, stops drawing；Second motor is used for the rotary motion of sample introduction arm；The third
Motor is used for the rotary motion of sample disc；
Solution transport portion includes multi-channel peristaltic pump, and by the multi-channel peristaltic pump convey sample peristaltic pump tube,
Liquid in current-carrying peristaltic pump tube, color developing agent peristaltic pump tube, emulsifier peristaltic pump tube and buffer solution peristaltic pump tube；
It is described chemistry flow path include electronic multiposition valve, sample peristaltic pump tube, current-carrying peristaltic pump tube, color developing agent peristaltic pump tube,
Emulsifier peristaltic pump tube, buffer solution peristaltic pump tube, first winding reaction tube, second winding reaction tube, third winding reaction tube,
First threeway, the second threeway, third threeway, capillary connecting tube, sample loop, container bottle flow cell, the first back pressure pipe and second back of the body
Pressure pipe；
The container bottle includes current-carrying bottle, color developing agent bottle, emulsifier bottle, buffer solution bottle and waste liquid pool；
Electronic multiposition valve has at least six interfaces, respectively D interface, E interface, F interface, G interface, H interface, I interface；
One end of the sample peristaltic pump tube is connected by capillary connecting tube with the sample introduction needle of automatic sampling part, the other end
Pass through the I interface fluid connection of capillary connecting tube and the electronic multiposition valve；
One end of the current-carrying peristaltic pump tube passes through hair by capillary connecting tube and the current-carrying bottle fluid connection, the other end
The G interface fluid connection of thin connecting tube and the electronic multiposition valve；
By capillary connecting tube and the color developing agent bottle fluid connection, the other end is logical for one end of the color developing agent peristaltic pump tube
Cross the B interface fluid connection of capillary connecting tube and first threeway；
By capillary connecting tube and the emulsifier bottle fluid connection, the other end is logical for one end of the emulsifier peristaltic pump tube
Capillary connecting tube is crossed to be connected to the A interface liquids of third threeway；
One end of the buffer solution peristaltic pump tube is another by capillary connecting tube and the buffer solution bottle fluid connection
The B interface fluid connection that end passes through capillary connecting tube and third threeway；
The E interface fluid connection of one end of the sample loop and the electronic multiposition valve, the other end and the electronic multidigit
The H interface fluid connection of valve；
The D interface of the electronic multiposition valve passes through capillary connecting tube and the waste liquid pool fluid connection；
The A mouth fluid connections that the F interface of the electronic multiposition valve passes through capillary connecting tube and first threeway；
The C mouths of first threeway and one end of the first winding reaction tube pass through capillary connecting tube fluid connection；
The C mouths of the third threeway and one end of the second winding reaction tube pass through capillary connecting tube fluid connection；
The A mouths of second threeway are connected to the other end of the first winding reaction tube, and the B mouths of second threeway are even
It is connected to the other end of the second winding reaction tube, the C mouths of second threeway are connected to one end of third winding reaction tube；
One end of the first back pressure pipe is connected with the D interface of electronic multiposition valve, and the other end is connected with waste liquid pool；
One end of the second back pressure pipe is connected with the outlet of the flow cell, and the other end is connected with waste liquid pool；
The other end of the third winding reaction tube is connected to the entrance of flow cell, and the outlet of the flow cell passes through capillary
Connecting tube and waste liquid pool fluid connection；
The flow cell is placed in detector, and the detector is used for for testing absorbance signal value；
The data processing stations are connect with the detector, at the absorbance that is detected to the detector
Reason, and obtain the concentration of aluminium in water.
Optionally, there are two states for the electronic multiposition valve：First state is load sample state, wherein D interface and E interface phase
Logical, F interface is communicated with G interface, and H interface is communicated with I interface；Second state is note sample state, and wherein D interface is communicated with I interface,
E interface is communicated with F interface, and G interface is communicated with H interface.
Optionally, the length of the first winding reaction tube, the second winding reaction tube and third winding reaction tube is 1-5m, internal diameter
For 0.3-1.5mm.
Optionally, the first back pressure pipe and the second back pressure pipe are 2-5m, internal diameter 0.3-1.0mm.
Optionally, the length of the capillary connecting tube is 0.1-1m, internal diameter 0.3-1.0mm.
Optionally, the sample peristaltic pump tube, current-carrying peristaltic pump tube, color developing agent peristaltic pump tube, emulsifier peristaltic pump tube and
The internal diameter of buffer solution peristaltic pump tube is 0.38-1.52mm, and the multi-channel peristaltic pump pump speed is 20-40rpm/min.
The present invention solves technical problem and also adopts the following technical scheme that：Aluminium automatic analysis method in a kind of water, including use
Aluminium automatic analysing apparatus measures aluminium in water in above-mentioned water.
Optionally, the current-carrying is water；The pH of the buffer solution is 6~8, is prepared using ethylenediamine and mixed in hydrochloric acid.
Optionally, color developing agent is the chrome azurol S solution of 0.3-1.0g/L.
Optionally, the emulsifier is 0.1-0.8g polyethylene glycol octyl phenylate CPB and 1-10ml polyethylene glycol octyl benzene
Ether OP is dissolved in 30ml ethyl alcohol, adds water constant volume to 200mL.
The present invention has the advantages that：The present invention water in aluminium automatic analysing apparatus can continuously and automatically to sample into
Row test, test speed is fast, and sample measurinng frequency is 45 samples/hour, improves the detection efficiency of aluminium in water；The sensitivity of test
Height, range of linearity 0.005-0.500mg/L, detection are limited to 0.001mg/L, and accuracy is good, and precision is high, reproducible, complete
It is complete to meet the requirements of GB/T 5750.6.
Description of the drawings
Fig. 1 be the present invention water in aluminium automatic analysing apparatus structural schematic diagram；
Specific implementation mode
Technical scheme of the present invention is further elaborated with reference to embodiment and attached drawing.
Embodiment 1
It present embodiments provides aluminium automatic analysing apparatus in a kind of water, including automatic sampling part, solution transport portion, changes
Learn flow path, detector 3 and data processing stations 4.
Automatic sampling part includes sample introduction arm 26, sampling needle 20, sample disc 27, sample cell 14, the 28, second electricity of first motor
Machine and third motor.
The sample cell 14 is used to place the standard solution or sample to be tested of known concentration, and the sampling needle 20 is for acquiring
Sample in sample tube 14, and the sample of acquisition is delivered to solution transport portion by sample introduction arm.
The sample introduction arm is used for fixed sample needle；The sample disc is for placing sample cell；The first motor be used for into
The up and down motion of sample arm, when sample introduction arm moves downward, be the standard solution of known concentration in order to be placed in pipette samples pipe or
Sample to be tested when sample introduction arm moves upwards, stops drawing；Second motor is used for the rotary motion of sample introduction arm；The third
Motor is used for the rotary motion of sample disc.
Solution transport portion includes multi-channel peristaltic pump 2, and conveys sample peristaltic pump tube by the multi-channel peristaltic pump
21, the liquid in current-carrying peristaltic pump tube 22, color developing agent peristaltic pump tube 23, emulsifier peristaltic pump tube 24 and buffer solution peristaltic pump tube 25
Body.
Chemical flow path includes electronic multiposition valve 6, sample peristaltic pump tube 21, current-carrying peristaltic pump tube 22, color developing agent peristaltic pump tube
23, emulsifier peristaltic pump tube 24, buffer solution peristaltic pump tube 25, first wind reaction tube 10, second and wind reaction tube 11, third
Wind reaction tube 12, the first threeway 7, the second threeway 8, third threeway 9, capillary connecting tube, sample loop 19, container bottle, flow cell
5, the first back pressure pipe and the second back pressure pipe；
Container bottle includes current-carrying bottle 15, color developing agent bottle 16, emulsifier bottle 17, buffer solution bottle 18 and waste liquid pool 13；
There are electronic multiposition valve 6 at least six interfaces, respectively D interface, E interface, F interface, G interface, H interface, I to connect
Mouthful.There are two states for electronic multiposition valve 6：First state is load sample state, and wherein D interface is communicated with E interface, F interface and G interface
It communicates, H interface is communicated with I interface；Second state is note sample state, and wherein D interface is communicated with I interface, E interface and F interface phase
Logical, G interface is communicated with H interface.
One end of sample peristaltic pump tube 21 is connected by capillary connecting tube with the sample introduction needle 20 of automatic sampling part, the other end
Pass through the I interface fluid connection of capillary connecting tube and the electronic multiposition valve；
One end of current-carrying peristaltic pump tube 22 passes through hair by capillary connecting tube and 15 fluid connection of current-carrying bottle, the other end
The G interface fluid connection of thin connecting tube and the electronic multiposition valve；
By capillary connecting tube and 16 fluid connection of color developing agent bottle, the other end is logical for one end of color developing agent peristaltic pump tube 23
Cross the B interface fluid connection of capillary connecting tube and first threeway 7；
By capillary connecting tube and 17 fluid connection of emulsifier bottle, the other end is logical for one end of emulsifier peristaltic pump tube 24
Capillary connecting tube is crossed to be connected to the A interface liquids of third threeway 9；
One end of buffer solution peristaltic pump tube 25 is another by capillary connecting tube and 18 fluid connection of buffer solution bottle
The B interface fluid connection that end passes through capillary connecting tube and third threeway 9；
The E interface fluid connection of one end of sample loop 19 and the electronic multiposition valve 6, the other end and the electronic multiposition valve
6 H interface fluid connection；
The D interface of electronic multiposition valve 6 passes through capillary connecting tube and 13 fluid connection of the waste liquid pool；
The A mouth fluid connections that the F interface of electronic multiposition valve 6 passes through capillary connecting tube and first threeway 7；
The C mouths of first threeway 7 and one end of the first winding reaction tube pass through capillary connecting tube fluid connection；
The C mouths of the third threeway 9 and one end of the second winding reaction tube pass through capillary connecting tube fluid connection；
The A mouths of second threeway 8 are connected to the other end of the first winding reaction tube, the B mouths of second threeway
It is connected to the other end of the second winding reaction tube, the C mouths of second threeway 8 are connected to the one of third winding reaction tube
End.
One end of first back pressure pipe 29 is connected with the D interface of electronic multiposition valve 6, and the other end is connected with waste liquid pool 13.
One end of second back pressure pipe 30 is connected with the outlet of the flow cell 5, and the other end is connected with waste liquid pool 13；
The other end of the third winding reaction tube is connected to the entrance of flow cell, and the outlet of the flow cell 5 passes through hair
Thin connecting tube and 13 fluid connection of waste liquid pool；
Flow cell 5 is placed in detector 3, and detector 3 is for testing the signal values such as absorbance.
The data processing stations 4 are connect with the detector 3, are carried out with the absorbance detected to the detector
Processing, and obtain the concentration (mg/L) of aluminium in water.
First winding reaction tube 10, second winds reaction tube 11, the length of third winding reaction tube 12 is 1-5m, and internal diameter is
0.3-1.5mm。
First back pressure pipe 29,30 capillary pipe length of the second back pressure pipe are 2-5m, internal diameter 0.3-1.0mm.
The length of capillary connecting tube is 0.1-1m, internal diameter 0.3-1.0mm.
The length of sample loop 19 is 0.5-3m, internal diameter 0.3-1.5mm.
Sample peristaltic pump tube 21, current-carrying peristaltic pump pump line 22, color developing agent peristaltic pump pump line 23, emulsifier peristaltic pump pump line
24, the internal diameter of buffer solution peristaltic pump pump line 25 is 0.38-1.52mm, and multi-channel peristaltic pump pump speed is 20-40rpm/min.
The light path of flow cell 5 is 10-50mm.
Electronic multiposition valve 6 is first in load sample state.When electronic multiposition valve 6 is in load sample state, sample is compacted through multichannel
The I interface for being driven into sample peristaltic pump tube 21, electronic multiposition valve 6 of dynamic pump 2, at this time I interface communicated with H interface, sample into
Enter sample loop 19 and be full of, extra sample enters the E interface of electronic multiposition valve 6, and E interface is communicated with D interface at this time, more
Remaining sample enters waste liquid pool 13 through D interface.
Then, the conversion of electronic multiposition valve 6 extremely note sample state.When electronic multiposition valve 6 is in note sample state, current-carrying is through multichannel
The driving of peristaltic pump 2, into current-carrying peristaltic pump tube 22, the G interface of electronic multiposition valve 6, G interface is communicated with H interface at this time, current-carrying
Push sample loop 19 in sample make sample enter electronic multiposition valve 6 E interface, at this time E interface communicated with F interface, sample is through F
Interface enters the first threeway 7.Color developing agent drives through multi-channel peristaltic pump 2, into color developing agent peristaltic pump tube 23, through the first threeway 7
B interface enter the sample that the first threeway 7 and current-carrying push and mixed in the first threeway 7, then mixed liquor is wound into first
Reactor 10 carries out hybrid reaction, and mixed liquor enters the A interfaces of the second threeway 8.
Emulsifier drives through multi-channel peristaltic pump 2, and into emulsifier peristaltic pump tube 24, the A interfaces through third threeway 9 enter
Third threeway 9, buffer solution drive through multi-channel peristaltic pump 2, and into buffer solution peristaltic pump tube 25, the B through third threeway 9 connects
Mouth enters third threeway 9, and buffer solution is mixed with emulsifier in third threeway, and then mixed liquor enters the second winding reactor
11 carry out hybrid reaction.
First winding reactor 10 and second wind reactor 11 outlet respectively with the A interfaces and B interface of the second threeway 8
It is connected, mixed liquor enters third winding reactor 12 by the C interface of third threeway 8 and reacts, and finally enters flow cell 5, detector 3
The absorbance of solution in flow cell 5 is detected, data are recorded using data processing stations 4, finally by the liquid of detection
Body flows into waste liquid pool 13.
Aluminium automatic analysing apparatus can continuously and automatically test sample in the water of the present invention, and test speed is fast, sample
Measurinng frequency is 45 samples/hour, improves the detection efficiency of aluminium in water；The high sensitivity of test, range of linearity 0.005-
0.500mg/L, detection are limited to 0.001mg/L, and accuracy is good, and precision is high, reproducible, complies fully with GB/T 5750.6 and wants
It asks.
Embodiment 2
Present embodiments provide aluminium automatic analysis method in a kind of water comprising：
Standard curve is done according to the peak height of the standard solution absorbance of measurement or the concentration of peak area and standard solution, according to
The peak height or peak area of sample absorbance can calculate aluminium in sample on standard curve.
(note：The definition of absorbanceWherein A is absorbance, I0It is incident intensity, I is outgoing
Luminous intensity, ε are molar absorption coefficient (cm-1·mol-1L), b is liquid layer thickness (cm)；C is solution concentration (molL-1))
Reagent used in aluminium automatic analysing apparatus in the water of the present invention：
Agents useful for same is domestic commercial reagent, and the minimum analysis of purity of reagent is pure.
The wherein pH of buffer solution is 6.8, is prepared using ethylenediamine and mixed in hydrochloric acid.
Color developing agent is the chrome azurol S solution of 0.5g/L.
Emulsifier is that 0.6g polyethylene glycol octyl phenylate CPB and 6ml polyethylene glycol octyl phenylates OP is dissolved in 30ml ethyl alcohol,
Add water constant volume to 200mL.
Current-carrying is deionized water.
Aluminium automatic analysing apparatus can continuously and automatically test sample in the water of the present invention, and test speed is fast, sample
45 samples of measurinng frequency/hour.
As follows using the mark of aluminium in a concentration of 0.005,0.010,0.020,0.050,0.100,0.200,0.500mg/L water
Quasi- sample tests aluminium automatic analysing apparatus in the water of the present invention.
Aluminum standard solution is by the center purchase of country's mark object, a concentration of 1000mg/L in water.By 1000mg/L aluminum standard solutions
It is diluted to 10mg/L and 1mg/L with deionized water classification, is configured to successively with aluminium storing solution in the water of 10mg/L and 1mg/L
0.005,0.010,0.020,0.050,0.100,0.200,0.500mg/L standard sample series.
Above-mentioned standard sample is analyzed using aluminium automatic analysing apparatus in the water of the present invention, the results are shown in Table 1.
The analysis result of 1. standard sample of table：
Working curve carries out linear fit according to the peak area of the absorbance of measurement to concentration, and fit equation is calculated by software
And related coefficient.
The range of linearity using the method for aluminium automatic analysing apparatus in the water of the present invention is 0.005~0.500mg/L, related
Coefficient r >=0.999.
Detection limit DL=t(n-1, α=0.99)* (s) (wherein t(n-1, α=0.99)It is the confidence level 99% when degree of freedom is n-1
When, the standard deviation that unilateral t is determined in the case of examining, the t as n=7(n-1, α=0.99)=3.14；S is arriving for duplicate measurements
Standard deviation).
Use the detection limit of the method for aluminium automatic analysing apparatus in the water of the present invention<0.001mg/L.
Using aluminium automatic analysing apparatus and the recovery of standard addition of analysis method actual water sample in the water of the present invention be 90%~
110%.
The sequencing of above example is only for ease of description, can not represent the quality of embodiment.
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. aluminium automatic analysing apparatus in a kind of water, which is characterized in that including automatic sampling part, solution transport portion, chemistry stream
Road, detector and data processing stations；
Automatic sampling part includes sample introduction arm, sampling needle, sample disc, sample cell, first motor, the second motor and third motor；
The sample cell is used to place the standard solution or sample to be tested of known concentration, and the sampling needle is for acquiring sample tube
Interior sample, and the sample of acquisition is delivered to solution transport portion by sample introduction arm；
The sample introduction arm is used for fixed sample needle；The sample disc is for placing sample cell；The first motor is used for sample introduction arm
Up and down motion, be the standard solution of known concentration or to be measured in order to be placed in pipette samples pipe when sample introduction arm moves downward
Sample when sample introduction arm moves upwards, stops drawing；Second motor is used for the rotary motion of sample introduction arm；The third motor
Rotary motion for sample disc；
Solution transport portion includes multi-channel peristaltic pump, and conveys sample peristaltic pump tube, current-carrying by the multi-channel peristaltic pump
Liquid in peristaltic pump tube, color developing agent peristaltic pump tube, emulsifier peristaltic pump tube and buffer solution peristaltic pump tube；
The chemistry flow path includes electronic multiposition valve, sample peristaltic pump tube, current-carrying peristaltic pump tube, color developing agent peristaltic pump tube, emulsification
Agent peristaltic pump tube, buffer solution peristaltic pump tube, the first winding reaction tube, the second winding reaction tube, third winding reaction tube, first
Threeway, the second threeway, third threeway, capillary connecting tube, sample loop, container bottle flow cell, the first back pressure pipe and the second back pressure pipe；
The container bottle includes current-carrying bottle, color developing agent bottle, emulsifier bottle, buffer solution bottle and waste liquid pool；
Electronic multiposition valve has at least six interfaces, respectively D interface, E interface, F interface, G interface, H interface, I interface；
One end of the sample peristaltic pump tube is connected by capillary connecting tube with the sample introduction needle of automatic sampling part, and the other end passes through
The I interface fluid connection of capillary connecting tube and the electronic multiposition valve；
One end of the current-carrying peristaltic pump tube is connected by capillary connecting tube and the current-carrying bottle fluid connection, the other end by capillary
Take over the G interface fluid connection with the electronic multiposition valve；
One end of the color developing agent peristaltic pump tube passes through hair by capillary connecting tube and the color developing agent bottle fluid connection, the other end
The B interface fluid connection of thin connecting tube and first threeway；
One end of the emulsifier peristaltic pump tube passes through hair by capillary connecting tube and the emulsifier bottle fluid connection, the other end
Thin connecting tube is connected to the A interface liquids of third threeway；
By capillary connecting tube and the buffer solution bottle fluid connection, the other end is logical for one end of the buffer solution peristaltic pump tube
Cross the B interface fluid connection of capillary connecting tube and third threeway；
The E interface fluid connection of one end of the sample loop and the electronic multiposition valve, the H of the other end and the electronic multiposition valve
Interface liquids are connected to；
The D interface of the electronic multiposition valve passes through capillary connecting tube and the waste liquid pool fluid connection；
The A mouth fluid connections that the F interface of the electronic multiposition valve passes through capillary connecting tube and first threeway；
The C mouths of first threeway and one end of the first winding reaction tube pass through capillary connecting tube fluid connection；
The C mouths of the third threeway and one end of the second winding reaction tube pass through capillary connecting tube fluid connection；
The A mouths of second threeway are connected to the other end of the first winding reaction tube, and the B mouths of second threeway are connected to
The other end of the second winding reaction tube, the C mouths of second threeway are connected to one end of third winding reaction tube；
One end of the first back pressure pipe is connected with the D interface of electronic multiposition valve, and the other end is connected with waste liquid pool；
One end of the second back pressure pipe is connected with the outlet of the flow cell, and the other end is connected with waste liquid pool；
The other end of the third winding reaction tube is connected to the entrance of flow cell, and the outlet of the flow cell is connected by capillary
Pipe and waste liquid pool fluid connection；
The flow cell is placed in detector, and the detector is used for for testing the signal values such as absorbance；
The data processing stations are connect with the detector, are handled with the absorbance detected to the detector,
And obtain the concentration of aluminium in water.
2. aluminium automatic analysing apparatus in water according to claim 1, which is characterized in that there are two shapes for the electronic multiposition valve
State：First state is load sample state, and wherein D interface is communicated with E interface, and F interface is communicated with G interface, and H interface is communicated with I interface；
Second state is note sample state, and wherein D interface is communicated with I interface, and E interface is communicated with F interface, and G interface is communicated with H interface.
3. aluminium automatic analysing apparatus in water according to claim 1, which is characterized in that the first winding reaction tube, second twine
The length that reaction tube is wound around reaction tube and third is 1-5m, internal diameter 0.3-1.5mm.
4. aluminium automatic analysing apparatus in water according to claim 1, which is characterized in that the first back pressure pipe and second back of the body
Pressure pipe is 2-5m, internal diameter 0.3-1.0mm.
5. aluminium automatic analysing apparatus in water according to claim 1, which is characterized in that the length of the capillary connecting tube is
0.1-1m, internal diameter 0.3-1.0mm.
6. aluminium automatic analysing apparatus in water according to claim 1, which is characterized in that the sample peristaltic pump tube, current-carrying
Peristaltic pump tube, color developing agent peristaltic pump tube, emulsifier peristaltic pump tube and buffer solution peristaltic pump tube internal diameter be 0.38-1.52mm,
The multi-channel peristaltic pump pump speed is 20-40rpm/min.
7. aluminium automatically analyzes in water aluminium automatic analysis method in a kind of water, including described in any one of using claim 1-6
Device measures aluminium in water.
8. the method according to the description of claim 7 is characterized in that the current-carrying is water；The pH of the buffer solution is 6~8,
It is prepared using ethylenediamine and mixed in hydrochloric acid.
9. according to the method described in claim 7, it is characterized in that color developing agent is the chrome azurol S solution of 0.3-1.0g/L.
10. the method according to the description of claim 7 is characterized in that the emulsifier is 0.1-0.8g polyethylene glycol octyl benzene
Ether CPB and 1-10ml polyethylene glycol octyl phenylate OP is dissolved in 30ml ethyl alcohol, adds water constant volume to 200mL.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810193886.4A CN108535498A (en) | 2018-03-09 | 2018-03-09 | Aluminium automatic analysing apparatus and analysis method in water |
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| CN201810193886.4A CN108535498A (en) | 2018-03-09 | 2018-03-09 | Aluminium automatic analysing apparatus and analysis method in water |
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| CN108535498A true CN108535498A (en) | 2018-09-14 |
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| CN201810193886.4A Pending CN108535498A (en) | 2018-03-09 | 2018-03-09 | Aluminium automatic analysing apparatus and analysis method in water |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117031055A (en) * | 2023-08-25 | 2023-11-10 | 北京宝德仪器有限公司 | Flow analysis system with bubble interval continuous flow and flow injection switchable |
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| CN102192989A (en) * | 2010-03-11 | 2011-09-21 | 北京吉天仪器有限公司 | Automatic analyser for volatile phenolic compound in water |
| CN102539796A (en) * | 2010-12-30 | 2012-07-04 | 北京吉天仪器有限公司 | Automatic analysis meter and method for amylose |
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| CN102192989A (en) * | 2010-03-11 | 2011-09-21 | 北京吉天仪器有限公司 | Automatic analyser for volatile phenolic compound in water |
| CN102539796A (en) * | 2010-12-30 | 2012-07-04 | 北京吉天仪器有限公司 | Automatic analysis meter and method for amylose |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117031055A (en) * | 2023-08-25 | 2023-11-10 | 北京宝德仪器有限公司 | Flow analysis system with bubble interval continuous flow and flow injection switchable |
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