CN105987910A - Detection kit for on-site quick detection of aluminum ions in water and preparing method - Google Patents
Detection kit for on-site quick detection of aluminum ions in water and preparing method Download PDFInfo
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- CN105987910A CN105987910A CN201510096907.7A CN201510096907A CN105987910A CN 105987910 A CN105987910 A CN 105987910A CN 201510096907 A CN201510096907 A CN 201510096907A CN 105987910 A CN105987910 A CN 105987910A
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Abstract
The invention discloses a detection kit which is used for on-site quick detection of aluminum ions in water and capable of eliminating reagent blank influences and a preparing method of the kit. In a faintly acid medium, aluminum ions in water react with chrome azurol S in the presence of a surfactant to generate a blue complex, and the shade of the blue complex is in direct proportion to the concentration of aluminum ions; a comparison with a test tube is made after the color of an aluminum ion standard color chart with reagent blank eliminated and a blank tube color are overlaid, and the concentration of aluminum ions in a water sample to be tested is obtained. The detection kit is especially suitable for on-site quick detection of aluminum ions in water.
Description
Technical field
The present invention relates to field of water quality detection, particularly relate to the on-the-spot quickly inspection of aluminium ion in a kind of water
Test agent box and preparation method.
Background technology
The highest permission content of drinking water sanitary standard regulation aluminum is 0.20mg/L.Take in
Health can be caused all harm by the aluminum of excess: to human body brain, the heart, liver function and immunity
Function causes damage, and induces senile dementia；To osteoblast after the digested Systemic absorption of aluminum
Activity produce toxicity, and suppress the substrate of bone to synthesize, cause increase and the people of UCaE amount
Internal lack calcium；Aluminum is combined with transferrins, causes the distribution of ferrum in blood plasma and the interference of metabolism,
Thus non-iron deficiency anemia disease occurs.In addition aluminum excess intake can also cause renal function to drop
The multiple diseases such as low, gastric secretion minimizing.
In water, aluminum ions detection uses atomic absorption spectrophotometry, inductively coupled plasma more
Body constitution spectrometry, fluorimetry, visible spectrophotometry, these methods are both needed to water sample band
Returning special laboratory, the operating technology personnel of specialty chemically examined, major part method also needs
Want the large-scale instrumentation that price is high, it is impossible to meet quick, easy Site Detection requirement,
Some special when and wheres there is also sampling not in time, sampling location water can not be objectively responded
The situation of weight.
The most existing aluminium ion Site Detection reagent mostly is based on colorimetry
Dry-type detectable, this detectable takes a certain amount of water sample and dry-type when measuring
Detectable mixes, dissolve, react a period of time after produce specific color, directly and standard
Colour atla comparison draws the concentration of water sample test substance.This type of method is quick, convenient, public participation
Degree height, but the change impact on measurement result of reagent blank when measuring, cannot be eliminated, only exist
Just there is when reagent blank is invariable higher accuracy.But, actually detected discovery, nothing
Opinion is the detectable of liquid type or dry-type, the most inevitably exists in storing process
The situation that reagent blank becomes larger or diminishes.Additionally, use the detectable of dry-type to carry out
During water sample detection, need first with water sample to be measured, detectable fully to be dissolved, then with in water sample
Concrete pollutant carry out reaction and produce particular color.Owing to Various Seasonal, zones of different gather
TWS is not quite similar, and when dissolving dry-type detectable, required time is also not quite similar, whole
Individual detection process required time is difficult to effectively control, also the accuracy to testing result cause unfavorable
Impact.
Therefore, demand one uses liquid type detectable, can eliminate reagent blank to detection knot
Aluminum ions detectable in the water that fruit affects, the use direct visual colorimetric determination of standard color card is quantitative
Box, is particularly important for realizing aluminium ion field quick detection in water.
Summary of the invention
The technical problem to be solved is to provide for one can eliminate reagent blank impact
Water in aluminium ion field quick detection box, to this end, the present invention also provides this test kit a kind of
Preparation method.
The principle of test kit of the present invention is: in weak acidic medium, aluminium ion and chromazurine in water
S generates blue coordination compound with surfactant reaction, the shade of this blue coordination compound and aluminum
Ion concentration is directly proportional, by aluminium ion standard color card color and the blank tube face of deduction reagent blank
Contrast with testing tube after color superposition, draw aluminium ion concentration in water sample to be measured.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is:
The test kit of aluminium ion field quick detection in water, consisting of of it:
1, liquid type aluminium ion detectable: 80mmol/L pH5.0 Acetic acid-sodium acetate buffer,
Containing 0.5-1.0g/L chrome azurol S, 1-3g/L halogenated phosphates, 5-50g/L chlorination
Sodium, 10-30ml/L ethylene glycol；
2, aluminium ion standard color card: by deduction reagent blank, concentration be respectively 0.02mg/L,
The aluminium ion standard of 0.06mg/L, 0.10mg/L, 0.16mg/L, 0.20mg/L, 0.30mg/L
Reference colour composition produced by solution reaction.
The preparation method of aforesaid liquid type aluminium ion detectable is: weigh 0.5-1.0g chromazurine
S, 1-3g halogenated phosphates, 5-50g sodium chloride, add 800ml 80mmol/L pH5.0
Acetic acid-sodium acetate buffer stirring and dissolving, adds 10-30ml ethylene glycol, after stirring and dissolving
It is settled to 1000ml with 80mmol/L pH5.0 Acetic acid-sodium acetate buffer.
The preparation method of above-mentioned aluminium ion standard color card is: it is 99.99% that precision weighs purity
Metallic aluminium 0.1000g, in 400ml conical flask, adds hydrochloric acid 50ml, nitric acid 10ml, low
After temperature heating for dissolving, it is cooled to room temperature and moves in 1 liter of volumetric flask, be diluted with water to scale, shake
Even, obtain the aluminium ion storing solution that concentration is 100mg/L, then with deionized water by aluminium ion
Storing solution be diluted to concentration be 0.02mg/L, 0.06mg/L, 0.10mg/L, 0.16mg/L,
The aluminium ion standard solution of 0.20mg/L, 0.30mg/L；Take 7 10ml glass color comparison tubes,
Arrange the 1st color comparison tube be blank tube, 2-7 root color comparison tube be standard pipe, respectively in blank
Pipe and standard pipe add 10ml deionized water and 10ml aluminium ion standard solution, adds
0.2ml liquid type aluminium ion detectable, 5-40 DEG C is reacted 5-15 minute；Bottom color comparison tube
Color produced by each tube reaction is taken, with photoshop 7.0 mapping software by each mark to arsis
After quasi-pipe color deduction blank tube color, by color and the aluminium ion standard solution of correspondence of gained
Concentration be printed upon on the water white transparency PVC plastic flitch that thickness is 1-2mm, obtain deduction examination
Aluminium ion standard color card after agent blank.
The positive effect of the present invention is as follows:
There is the advantage that method is simple, accuracy is high, easily operated；Use liquid type aluminium ion
Detectable detects, and can effectively control whole detection process required time；By by blank
The method that pipe color addition carries out colorimetric control with sample cell on standard color card again, can effectively disappear
Except the reagent blank impact on testing result, it is particularly suitable for aluminium ion field quick detection in water.
The detection kit of the present invention and the aluminium ion of existing employing standard color card direct color comparison
Detection kit compares, and the results are shown in Table 1.
Table 1
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described further, the following stated, is only to this
The preferred embodiment of invention, not does the restriction of other forms to the present invention, any familiar
Professional and technical personnel is changed to become on an equal basis possibly also with the technology contents of the disclosure above
The Equivalent embodiments changed.Every without departing from the present invention program content, the technology according to the present invention is real
Any simple modification that confrontation following example are done or equivalent variations, all fall within the guarantor of the present invention
In the range of protecting.
Embodiment 1
Aluminium ion field quick detection test kit in a kind of water, this test kit is by following material group
Become:
Liquid type aluminium ion detectable 1 bottle (10ml)
Aluminium ion standard color card 1
The preparation method of this test kit is through the following steps that realize:
1, the preparation method of liquid type aluminium ion detectable:
(1), 0.75g chrome azurol S, 2g halogenated phosphates, 25g sodium chloride are weighed,
Add 800ml 80mmol/L pH5.0 Acetic acid-sodium acetate buffer stirring and dissolving；
(2), 20ml ethylene glycol, stirring and dissolving are added；
(3) it is settled to 1000ml with 80mmol/L pH5.0 Acetic acid-sodium acetate buffer.
2, the preparation method of aluminium ion standard color card:
(1), precision weighs metallic aluminium 0.1000g that purity is 99.99% in 400ml taper
In Ping, add hydrochloric acid 50ml, nitric acid 10ml, after low-temperature heat is dissolved, be cooled to room temperature and move into
In 1 liter of volumetric flask, be diluted with water to scale, shake up, obtain aluminum that concentration is 100mg/L from
Sub-storing solution, then with deionized water aluminium ion storing solution is diluted to concentration be 0.02mg/L,
The aluminium ion standard of 0.06mg/L, 0.10mg/L, 0.16mg/L, 0.20mg/L, 0.30mg/L
Solution；
(2), take 7 10ml glass color comparison tubes, arrange the 1st color comparison tube be blank tube,
2-7 root color comparison tube is standard pipe, respectively in blank tube and standard pipe add 10ml go from
Sub-water and 10ml aluminium ion standard solution, add 0.2ml liquid type aluminium ion detectable,
React 10 minutes at 20 DEG C；
(3), by color comparison tube bottom up clap and take color produced by each tube reaction, use
Photoshop 7.0 mapping software is by after each standard pipe color deduction blank tube color, by gained
The concentration of the aluminium ion standard solution of color and correspondence is printed upon the water white transparency that thickness is 1mm
On PVC plastic flitch, obtain the aluminium ion standard color card after deducting reagent blank.
Detection method:
Take 2 10ml glass color comparison tubes, arrange the 1st color comparison tube be blank tube, the 2nd
Color comparison tube is sample cell, respectively in blank tube and sample cell add 10ml deionized water and
10ml water sample to be measured, adds liquid type aluminium ion detectable 0.2ml, 20 DEG C of reactions
10 minutes；Standard color card is placed in bottom blank tube, color comparison tube bottom up observes blank
Pipe superpose with standard color card after color, and with sample cell color comparator, when both solid colours
Time, in 10 minutes, read the aluminium ion concentration corresponding to standard color card, draw aluminum in water sample
Ion concentration.
Embodiment 2
In order to prove the creativeness of the present invention further, the present invention has done following contrast test, examines
That examines reagent blank changes the impact on measurement result accuracy.As described in this law embodiment 1
In water, aluminium ion field quick detection test kit is test group, not deduct reagent blank, employing
The detection kit of standard color card direct color comparison is matched group, by the detectable of two group reagent boxes
Put 4 DEG C of refrigerators respectively and 37 water-baths store 7 days, and to same portion atomic absorption method
Measure the water sample that aluminium ion concentration is 0.10mg/L to be measured, replace with deionized water simultaneously
Water sample carries out reagent blank test, by 721 spectrophotometer record reagent blank values, during test
Cuvette optical path is 1cm, and test wavelength is 630nm, and reference solution is deionized water, result
It is shown in Table 2.
Table 2
From table 2 it can be seen that under identical experiment condition, along with the gradually increasing of reagent blank
Greatly, the measurement result of test group keeps constant, but the measurement result of matched group substantially becomes big, table
Bright method of the present invention can effectively remove the change of reagent blank to aluminium ion test result
Impact.
Although an embodiment of the present invention has been shown and described, for the ordinary skill of this area
For personnel, it is possible to understand that without departing from the principles and spirit of the present invention can be to this
A little embodiments carry out multiple change, revise, replace and modification, and the scope of the present invention is by appended power
Profit requires and equivalent limits.
Claims (3)
1. the test kit of aluminium ion field quick detection in water, it is characterised in that: its composition
For:
(1), liquid type aluminium ion detectable: 80mmol/L pH5.0 Acetic acid-sodium acetate delays
Rush liquid, containing 0.5-1.0g/L chrome azurol S, 1-3g/L halogenated phosphates, 5-50g/L
Sodium chloride, 10-30ml/L ethylene glycol；
(2), aluminium ion standard color card: by deduction reagent blank, concentration be respectively 0.02mg/L,
The aluminium ion standard of 0.06mg/L, 0.10mg/L, 0.16mg/L, 0.20mg/L, 0.30mg/L
Reference colour composition produced by solution reaction.
The test kit of aluminium ion field quick detection in water the most according to claim 1
Preparation method, it is characterised in that: the preparation method of liquid type aluminium ion detectable is: weigh
0.5-1.0g chrome azurol S, 1-3g halogenated phosphates, 5-50g sodium chloride, add 800ml
80mmol/L pH5.0 Acetic acid-sodium acetate buffer stirring and dissolving, adds 10-30ml second two
Alcohol, is settled to 1000ml with 80mmol/L pH5.0 Acetic acid-sodium acetate buffer after stirring and dissolving.
The test kit of aluminium ion field quick detection in water the most according to claim 1
Preparation method, it is characterised in that: the preparation method of aluminium ion standard color card is: precision weighs pure
Degree is 99, the metallic aluminium 0.1000g of 99% in 400ml conical flask, add hydrochloric acid 50ml,
Nitric acid 10ml, after low-temperature heat is dissolved, is cooled to room temperature and moves in 1 liter of volumetric flask, use water
It is diluted to scale, shakes up, obtain the aluminium ion storing solution that concentration is 100mg/L, then spend
Ionized water aluminium ion storing solution is diluted to concentration be 0.02mg/L, 0.06mg/L, 0.10mg/L,
The aluminium ion standard solution of 0.16mg/L, 0.20mg/L, 0.30mg/L；Take 7 10ml glass
Glass color comparison tube, arrange the 1st color comparison tube be blank tube, 2-7 root color comparison tube be standard pipe,
10ml deionized water and 10ml aluminium ion standard solution is added respectively in blank tube and standard pipe,
Adding 0.2ml liquid type aluminium ion detectable, 5-40 DEG C is reacted 5-15 minute；By colorimetric
Pipe bottom up is clapped and is taken color produced by each tube reaction, with photoshop 7.0 mapping software
After each standard pipe color deduction blank tube color, by color and the aluminium ion mark of correspondence of gained
The concentration of quasi-solution is printed upon on the water white transparency PVC plastic flitch that thickness is 1-2mm, obtains
Aluminium ion standard color card after deduction reagent blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510096907.7A CN105987910A (en) | 2015-03-05 | 2015-03-05 | Detection kit for on-site quick detection of aluminum ions in water and preparing method |
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| CN201510096907.7A CN105987910A (en) | 2015-03-05 | 2015-03-05 | Detection kit for on-site quick detection of aluminum ions in water and preparing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557313A (en) * | 2020-11-13 | 2021-03-26 | 上海仪电科学仪器股份有限公司 | Improved method for determining aluminum ion content by chromium azure S method |
-
2015
- 2015-03-05 CN CN201510096907.7A patent/CN105987910A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557313A (en) * | 2020-11-13 | 2021-03-26 | 上海仪电科学仪器股份有限公司 | Improved method for determining aluminum ion content by chromium azure S method |
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Application publication date: 20161005 |