CN2695953Y - Total iron colorimetric investigating pipe - Google Patents
Total iron colorimetric investigating pipe Download PDFInfo
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- CN2695953Y CN2695953Y CN 200420010674 CN200420010674U CN2695953Y CN 2695953 Y CN2695953 Y CN 2695953Y CN 200420010674 CN200420010674 CN 200420010674 CN 200420010674 U CN200420010674 U CN 200420010674U CN 2695953 Y CN2695953 Y CN 2695953Y
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- total iron
- glass tube
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- liquid
- pipe
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Abstract
The utility model relates to a determination apparatus for the micro trace chemical element content in the water quality and waste water, particularly a total iron colorimetric determination pipe in the water quality. The total iron colorimetric determination pipe is provided with a vacuum seal glass tube with uniform section and total iron assaying liquid is filled in the glass tube. The ratio of the height H1 of the assaying liquid in the glass tube and the hanging height H2 of the uniform section of the glass tube is 1: 3-5. Taking the unit volume and unit weight as example, the total iron assaying liquid in the water of 2000 ml contains alcohol of 100-200 ml, dipyridine of 3-6 g and hydroxylamine hydrochloride of 50-80 g. The utility model with simple use, accurate and reliable determination result and relatively great measured range can carry out the on-site test, and during detection the water sample to be tested can be acidified only by minute quantity of hydrochloric acid reagent with the ratio of 1: 1 without other apparatus. The total iron colorimetric determination pipe with distinct effect is applicable to the water supply network of laboratory, oilfield and industrial and mining enterprise and water quality monitoring of various environmental protection occasions, and the total iron colorimetric determination pipe saves time, force and labor with the obvious effect.
Description
One. technical field: the utility model relates to relevant trace chemical elements Determination on content utensil in a kind of water quality, the waste water, particularly relates to Total Iron Colorimetric Determination Pipe in a kind of water quality.
Two. background technology: well-known, in industrial and agricultural production and daily life, steel pipeline is widely used in the plumbing and the mass transport of oilfield exploitation, industrial circulating water, tap water etc., and in the steel pipeline liquid, multiple materials such as salt, mineral matter, microorganism can cause corrosion to pipeline, cause waste deposits in the pipeline, influence the liquid flow, can the pipeline erosion is mashed when serious, rust is saturating, have a strong impact on the normal operation and the daily life of industrial and agricultural production, even cause a serious accident.Total iron content in the pipeline water quality is measured, can be judged whether pipeline corrodes or the extent of corrosion size, thereby pipe safety is played forewarning function, important and practical meanings is arranged for the normal operation and the daily life that guarantee industrial and agricultural production.
Be the Phen spectrophotometric method for the traditional analysis test method of total iron content at present, it adopts principle to be: utilize reductive agent that ferric iron is reduced to ferrous iron, ferrous iron generates stable orange red complex compound with Phen between pH value 3～9, the measurement wavelength is 510nm, and its molar absorptivity is 1.1 * 10
4, utilize it with the corresponding spectrophotometric working curve contrast of the total concentration of iron of standard, draw total iron content in the liquid to be measured.
It is more that the method is measured disturbing factor, strong oxidizer, prussiate, nitrite, pyrophosphate, Quadrafos and some heavy metal ion all can interference measurements partially, adding acid boils and prussiate and nitrite can be removed, and make pyrophosphate, inclined to one side Quadrafos be converted into orthophosphate and alleviate interference, add the influence that oxammonium hydrochloride can be eliminated strong oxidizer.Phen can also interference measurement still need take certain corresponding measure to eliminate interference with some metallic ion formation complex compound, otherwise has a strong impact on accuracy, effect and the work efficiency of measurement result.
This method is applicable to the detection of iron in general environment water and the waste water, is limited to 5mg/L on the mensuration, to the water sample of iron concentration greater than 5mg/L, need suitably dilute the back and measure.
It is many that this method need dispose reagent, and complex operation needs more glassware and instrument.Need join reagent material has: (1) iron standard solution, (2) 1+3 hydrochloric acid, (3) 10% oxammonium hydrochloride solution, (4) acetate-acetate ammonia buffer, (5) 0.5% Phen developers, (6) saturated sodium acetate solution, (7) Congored test paper.Must use spectrophotometer in the test process.
Its operation steps is as follows: 1, get iron standard solution 0,2.00,4.00,6.00,8.00,10.00 successively in the 150ml conical flask, add distilled water 50.00ml, add 1+3 hydrochloric acid 1ml again, 10% (m/V) oxammonium hydrochloride solution 1ml, beaded glass 1-2 grain, then, heated and boiled to solution remains about 15ml, be cooled to room temperature, quantitatively be transferred in the 50ml tool plug glass tube.Add a small pieces Congored test paper, drip saturated sodium acetate solution to test paper and just redden, add 5ml buffer solution, 0.5% (m/V) Phen solution 2ml adds water to graticule, shakes up.Develop the color after 15 minutes, on spectrophotometer, measure absorbance, by through the absorbance of blank check and correction to the concentration value of the iron curve map of working.
2, the mensuration of total iron: behind the collection water sample is 1 with hcl acidifying to pH value immediately, get 50ml mixing water sample during analysis and place the 150ml conical flask, add 1+3 hydrochloric acid 1ml, add oxammonium hydrochloride 1ml, heated and boiled to volume reduces to about 15ml, if there is precipitation to remove by filter.Below operate equally by the preparation work curve method, measure absorbance and also do blank check and correction.On working curve, check out the concentration value of total iron in the corresponding water sample with this absorbance.Above-mentioned known technology method of testing can't realize field monitoring, and is unfavorable for environmental protection and daily industrial and agricultural production monitoring.
Three. utility model content: the purpose of this utility model: for increase water quality or waste water in the total iron content determination efficiency, shorten minute, alleviate intensity of workers, realize on-site supervision and monitoring in real time, make Total Iron Colorimetric Determination Pipe.
The technical scheme that the utility model adopted: a kind of Total Iron Colorimetric Determination Pipe, contain uniform cross section vacuum seal glass tube, be provided with one section sealing at glass tube one end and be communicated with capillary tube segment, total iron determination liquid is housed in glass tube, measure the height H of liquid in glass tube
1With the glass tube uniform cross section height H of leaving a blank
2Ratio be H
1: H
2=1: 3～5.
Described mensuration pipe is measured liquid and is contained water and oxammonium hydrochloride, is example with unit volume, unit weight part, in 2000ml water, contains ethanol 100～200ml, dipyridine 3～6g, oxammonium hydrochloride 50～80g.
Described Total Iron Colorimetric Determination Pipe is measured ethanol in the liquid, dipyridine, when each effective ingredient concentration of oxammonium hydrochloride improves or reduces, and its volume is corresponding to be dwindled or increase.
Positive beneficial effect of the present utility model:
1. the utility model total iron determination pipe is the determination techniques quantification of very complicated, and is integrated, commercialization, and product structure is simple, and cost is low.The total iron determination pipe is learnt from other's strong points to offset one's weaknesses on the basis of conventional test methodologies, preparing special mensuration liquid in advance quantitatively is packaged in the glass tube with vacuum, the capillary tube segment of testing tube fractures in water sample to be measured during use, water sample to be measured is in the automatic ration tail pipe, ferric ion wherein and mensuration liquid generation complexing chromogenic reaction, question response is complete, colour stable (1～2 minute) back contrasts with standard color range pipe, just can draw total iron content more accurately.Measure rapidly fast, easy to use, be easy to carry.
2. to be used to carry out on-the-spot test very convenient for the utility model.1: 1 hydrochloric acid reagent that only need be equipped with minute quantity during detection carries out acidification to water sample to be checked, do not need Other Instruments equipment, simplify greatly and detect step, save minute, can be used for the on-the-spot water quality monitoring of laboratory, oil, industrial and mining enterprises' water supply network and various environmental protection, save time, laborsaving, the saving of labor, effect is obvious.
3. the utility model is measured pipe, stable performance, holding time is longer, measurement result accurately, is reliably compared with traditional spectrophotometric method, does not exist traditional Phen spectrophotometric method need get rid of a series of impurity interference problem, simplified measuring process, alleviate labour intensity, accelerated finding speed, reduced the monitoring cost.
4. the utility model is compared with traditional spectrophotometric method, and relative error is very little, and between 0.5～3.3%, and measurement range is bigger, generally at 0～10.0mg/L, has enlarged original technical monitoring scope.Suitable promotional value is arranged, have better economic and social benefit.
The utility model testing tube and iodimetric titration data contrast table:
Can find out that from above-mentioned contrast table it is accurately, reliably that the utility model is measured the pipe determination data.
Four. description of drawings:
Fig. 1: Total Iron Colorimetric Determination Pipe structural representation
Five. embodiment:
Embodiment one: referring to Fig. 1,1 is the uniform cross section glass tube with vacuum among the figure, and 2 is capillary tube segment, and 3 are total iron determination liquid.H
1For measuring liquid height, H
2For the uniform cross section vacuum tube is left a blank highly.Uniform cross section glass tube with vacuum external diameter is 7.0 millimeters in the present embodiment, 9 centimetres of overall heights, the height H of mensuration liquid in the glass tube
1Be 1.5 centimetres, the height H of leaving a blank
2Be 6 centimetres, capillary tube segment length is 1.5 centimetres.
Formation determination liquid: get 4000ml water, ethanol 300ml, dipyridine 9g, oxammonium hydrochloride 130g, be hybridly prepared into standard total iron determination liquid, vacuum filling sealing is made 8900 upper right the stating of supporting the leftist side and is measured pipe.
Make corresponding said determination piping row colour code, form the standard color range: for example make total iron content and be respectively 0mg/L, 0.1mg/L, 0.2mg/L, 0.3mg/L, 0.4mg/L, 0.6mg/L, 0.8mg/L, 1.0mg/L, 2.0mg/L, 3.0mg/L, 4.0mg/L, 5.0mg/L, 6.0mg/L, 8.0mg/L, 13 standard charomatrons of 10.0mg/L.At first preparation standard is measured liquid 2150ml, be divided into 13 equal portions, be that every part of volume is 165.4ml, making total iron content then respectively is the total molten iron solution of 13 kinds of normal concentrations of above-mentioned respective concentration, and the total molten iron solution of normal concentration was with 1: 1 hcl acidifying, to measure the total molten iron solution of liquid and various normal concentration mixes by 1: 4 volume ratio, make it fully to take place complex reaction, colour developing is treated to pour in the charomatron respectively behind the colour stable, seal charomatron then, form 13 kinds of serial color range standard colors mark pipes.
Measure the pipe using method: get 20～30ml water sample to be measured, add 21: 1 hydrochloric acid, mixing, the capillary tube segment of measuring pipe is immersed water sample to be measured, kapillary fractures, be filled the uniform cross section glass tube with vacuum pipeline section of leaving a blank etc. water sample to be measured, take out to be inverted repeatedly and mix, make it fully to carry out chromogenic reaction, contrast with the series standard colour code behind the colour stable, be the total concentration of iron value that records with the pairing total concentration of iron numerical value of the colour code that is near the mark most,, then get its mean value if measure the pipe color between two standard color ranges.
Embodiment two: referring to Fig. 1,1 is the uniform cross section glass tube with vacuum among the figure, and 2 is capillary tube segment, and 3 are total iron determination liquid.H
1For measuring liquid height, H
2For the uniform cross section vacuum tube is left a blank highly.Uniform cross section glass tube with vacuum external diameter is 8 millimeters in the present embodiment, 8 centimetres of overall heights, the height H of mensuration liquid in the glass tube
1Be 1.5 centimetres, the height H of leaving a blank
2Be 4.5 centimetres, capillary tube segment length is 2 centimetres.
The mensuration formula of liquid is: water 2000ml, add ethanol 100ml, dipyridine 3g, oxammonium hydrochloride 50g, and be hybridly prepared into standard test liquid.
Measure pipe, colour code method for making with embodiment one, specifically no longer be described in detail.When measuring contrast, should be noted in the discussion above that in measuring the colour code that 1: 3 ratio of liquid and the total molten iron solution of normal concentration is made to have only and measures in the pipe its height H of mensuration liquid of proportioning equally
1With the uniform cross section glass tube height H of leaving a blank
2Ratio be just to be of practical significance in 1: 3 o'clock.
Embodiment three: referring to Fig. 1,1 is the uniform cross section glass tube with vacuum among the figure, and 2 is capillary tube segment, and 3 are total iron determination liquid.H
1For measuring liquid height, H
2For the uniform cross section vacuum tube is left a blank highly.Uniform cross section glass tube with vacuum external diameter is 5.5 millimeters in the present embodiment, 12 centimetres of overall heights, the height H of mensuration liquid in the glass tube
1Be 1.8 centimetres, the height H of leaving a blank
2Be 9 centimetres, capillary tube segment length is 1.2 centimetres.
Measure the liquid proportioning: water 2000ml, ethanol 200ml, dipyridine 6g, oxammonium hydrochloride 80g are hybridly prepared into standard test liquid.Corresponding making measured pipe and corresponding standard colour code.
Claims (3)
1. a Total Iron Colorimetric Determination Pipe contains uniform cross section vacuum seal glass tube, is provided with one section sealing at glass tube one end and is communicated with capillary tube segment, it is characterized in that: total iron determination liquid is housed in glass tube, measures the height H of liquid in glass tube
1With the glass tube uniform cross section height H of leaving a blank
2Ratio be H
1: H
2=1: 3～5.
2. Total Iron Colorimetric Determination Pipe according to claim 1 is characterized in that: measuring liquid and contain water and oxammonium hydrochloride, is example with unit volume, unit weight part, in 2000ml water, contains ethanol 100～200ml, dipyridine 3～6g, oxammonium hydrochloride 50～80g.
3. Total Iron Colorimetric Determination Pipe according to claim 1 and 2 is characterized in that: measure ethanol in the liquid, dipyridine, when each effective ingredient concentration of oxammonium hydrochloride improves or reduces, its volume is corresponding to be dwindled or increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010674 CN2695953Y (en) | 2004-04-20 | 2004-04-20 | Total iron colorimetric investigating pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420010674 CN2695953Y (en) | 2004-04-20 | 2004-04-20 | Total iron colorimetric investigating pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2695953Y true CN2695953Y (en) | 2005-04-27 |
Family
ID=34768372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420010674 Expired - Fee Related CN2695953Y (en) | 2004-04-20 | 2004-04-20 | Total iron colorimetric investigating pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2695953Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563945B (en) * | 2004-04-20 | 2010-04-28 | 白莉 | Total iron assaying liquid and color comparison tube |
-
2004
- 2004-04-20 CN CN 200420010674 patent/CN2695953Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563945B (en) * | 2004-04-20 | 2010-04-28 | 白莉 | Total iron assaying liquid and color comparison tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHENGZHOU WATER TESTING TECHNOLOGY CO., LTD. Assignor: Bai Li Contract fulfillment period: 2009.3.25 to 2014.3.25 Contract record no.: 2009410000016 Denomination of utility model: Total iron colorimetric investigating pipe Granted publication date: 20050427 License type: Exclusive license Record date: 20090326 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.3.25 TO 2014.3.25; CHANGE OF CONTRACT Name of requester: ZHENGZHOU WATER TESTING TECHNOLOGY CO., LTD. Effective date: 20090326 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050427 Termination date: 20110420 |