CN108072583A - Total phosphorus content method for measuring is quickly realized in Furniture Factory's sewage disposal - Google Patents
Total phosphorus content method for measuring is quickly realized in Furniture Factory's sewage disposal Download PDFInfo
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Abstract
The invention discloses one kind quickly to realize total phosphorus content method for measuring in Furniture Factory's sewage disposal, and the sulfuric acid that 27mL density is 1.84g/mL is added in 973mL water；40g sodium hydroxides are dissolved in water and are diluted to 1000mL；The phosphorus standard solution of 10.0mL is transferred in 250mL volumetric flasks, is diluted with water to graticule and mixing, this standard solution of 1.00mL contains 2.0 μ g phosphorus；0.5g phenolphthalein is dissolved in 50mL95% ethyl alcohol；Add small funnel on conical flask or adjust electric plate temperature, digestion solution is made to maintain the reflux for state in conical flask inner wall, until remaining 3~4mL, it lets cool, add water 10mL, add 1 drop phenolphthalein indicator, sodium hydroxide solution is added dropwise to just in blush, sulfuric acid solution is added dropwise again makes micro- red just decorporate, it moves in tool plug graded tube, is diluted with water to graticule, measures absorbance, after the absorbance for deducting blank test, the content of phosphorus is checked in from working curve；It is calculated by formula.The assay method it is efficient, the cycle is short, and measurement result is accurate, meets use of the people subsequently to water body, protects the health of people.
Description
Technical field
The present invention relates to a kind of methods, and total phosphorus content is quickly realized in Furniture Factory's sewage disposal more particularly, to one kind
Method for measuring.
Background technology
Phosphorus is No. 15 chemical element, symbol P.Period 3 in the periodic table of elements, the VIth race.Phosphorus is present in human body
In all cells, it is the necessary material for maintaining bone and tooth, almost participates in all chemical reactions physiologically.Phosphorus still makes the heart
It is dirty regularly to beat, maintain the normal function of kidney and convey the important substance of nerve stimulation.When there is no phosphorus, niacin（Also known as
Vitamin B3）It cannot be absorbed；The normal function of phosphorus needs vitamin（Vitamin food）D and calcium（Calcium food）To maintain.
Phosphorus is found to be present in the universe residue after fixed star explodes for the first time.The newest observation of relic of supernova object Cassiopeia A is taken off
Newest evidence existing for phosphorus is shown.It is one of two big elements found in deep space or may provide related life to scientist
The clue of possibility in universe.There is very abundant phosphorus in food, therefore phosphorus shortage is rare, phosphorus intake or the deficiency absorbed
Hypophosphatemia can occur, cause red blood cell, leucocyte, hematoblastic exception, osteomalacia；Because of disease or excessive intake phosphorus,
It will cause hyperphosphatemia, blood calcium reduction in blood is made to cause osteoporosis.Phosphate fertilizer can promote tomato bud differentiation, bloom ahead of time
As a result, promote seedlings root growth and improve fruit quality.When lacking phosphorus, young shoot and root growth are slow, and plant is short and small, and leaf color is dark
It is green, matt, back side purple.Due to the use of phosphate fertilizer so that phosphorus content greatly increases in water body, this will cause water quality eutrophy
Change, influence water quality, human body, which is drunk or contacted, causes body to injure, it is therefore desirable to which the phosphorus content in water quality is surveyed
It is fixed, and existing assay method efficiency is low, the cycle is long, and the resultant error measured is very big.
The content of the invention
Above-mentioned existing low to the assay method efficiency of phosphorus content in water quality it is an object of the invention to overcome, the cycle is long, and
And the resultant error that measures it is very big the problem of, devise and a kind of quickly realize that total phosphorus content measures in Furniture Factory's sewage disposal
Method, the assay method it is efficient, the cycle is short, and measurement result is accurate, meets use of the people subsequently to water body, protect
The health of people is protected, solves existing low to the assay method efficiency of phosphorus content in water quality, the cycle is long, and the knot measured
The problem of fruit error is very big.
The purpose of the present invention is achieved through the following technical solutions：Total phosphorus content is quickly realized in Furniture Factory's sewage disposal
Method for measuring comprises the following steps：
（1）Preparation of reagents：The sulfuric acid that 27mL density is 1.84g/mL is added in 973mL water；40g sodium hydroxides are dissolved in water
And it is diluted to 1000mL；240g sodium hydroxides are dissolved in water and are diluted to 1000mL；5g potassium peroxydisulfates are dissolved in water, and are diluted
To 100mL；10g ascorbic acid is dissolved in water, and is diluted to 100mL, this solution is stored in the reagent bottle of brown, can at cold place
Stablize several weeks；13g ammonium molybdates are dissolved in 100mL water；0.35g potassium antimony tartrates are dissolved in 100mL water, in the case where being stirred continuously
Ammonium molybdate solution is added in 300mL sulfuric acid slowly, adds antimony tartrate potassium solution and is uniformly mixed, this solution is stored in brown
In reagent bottle, it can be preserved two months at cold place；Weigh the phosphorus that 0.2197 ± 0.001g is let cool in 110 DEG C of dry 2h in drier
Acid dihydride potassium with being transferred to after water dissolution in 1000mL volumetric flasks, adds in about 800mL water plus 5mL sulfuric acid is diluted with water to mark
Line and mixing, this standard solution of 1.00mL contain 50.0 μ g phosphorus；The phosphorus standard solution of 10.0mL is transferred in 250mL volumetric flasks,
Graticule and mixing are diluted with water to, this standard solution of 1.00mL contains 2.0 μ g phosphorus；0.5g phenolphthalein is dissolved in 50mL95% ethyl alcohol；
（2）Sample preparation：It takes and the pH value that 1mL sulfuric acid adjusts sample is added in after 500mL water samples, be allowed to less than or equal to 1 or not
Any reagent is added to be preserved in cold place, take 25mL samples in tool fill in graded tube in, should carefully be shaken up when taking, with obtain dissolving part and
Floating parts are respectively provided with representative sample；
（3）Determination step：Alkaline potassium per-sulfate digestion：Add 4mL potassium peroxydisulfates into sample, after the lid for having plug graded tube is stoppered, use
One napkin and line tighten glass stopper, are placed on to be placed in high pressure steam boiler in large beaker and heat, and treat that pressure reaches 1.1kg/
cm2, when relevant temperature is 120 DEG C, stopping heating after 30min is kept, after pressure gauge reading is down to zero, taking-up is let cool, then
It is diluted with water to graticule；25mL samples are taken in conical flask, addend grain bead adds 2mL nitric acid to heat concentration on electric hot plate
To 10mL, after cold plus 5mL nitric acid, reheating are concentrated into 10mL, let cool, add 3mL perchloric acid, be heated to perchloric acid and emit white cigarette, this
When can on conical flask plus small funnel or adjust electric plate temperature, digestion solution is made to maintain the reflux for state in conical flask inner wall, until
Remaining 3~4mL, lets cool, adds water 10mL, adds 1 drop phenolphthalein indicator, and sodium hydroxide solution is added dropwise to just in blush, then be added dropwise
Sulfuric acid solution make it is micro- it is red just decorporate, abundant mixing, move to tool plug graded tube in, be diluted with water to graticule, disappear respectively to each part
It solves and 1mL ascorbic acid solution mixings is added in liquid, add the abundant mixing of 2mL molybdate solutions after 30s, after placing 15min at room temperature,
The use of light path is 30mm cuvettes, under 700nm wavelength, reference is done with water, measures absorbance, deducts the absorbance of blank test
Afterwards, the content of phosphorus is checked in from working curve, 7 brace plug graded tubes is taken to be separately added into 0.0,0.50,1.00,3.00,5.00,
10.0,15.0mL phosphate standard solution, add water to 25mL, are then handled by determination step, do reference with water, measure and inhale
Luminosity, is deducted after the absorbance of blank test and the content drawing curve of corresponding phosphorus；
（4）As a result represent：Total phosphorus content is represented with C (mg/L), is calculated as follows：
C=m/V
In formula：M --- sample measures phosphorus content, μ g；
V --- measurement sample volume, mL.
In conclusion the beneficial effects of the invention are as follows：The assay method it is efficient, the cycle is short, and measurement result is accurate
Really, meet use of the people subsequently to water body, protect the health of people, solve the existing measure to phosphorus content in water quality
The problem of method efficiency is low, and the cycle is long, and the resultant error measured is very big.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited only to
This.
Embodiment：
Total phosphorus content method for measuring is quickly realized in Furniture Factory's sewage disposal, is comprised the following steps：
（1）Preparation of reagents：The sulfuric acid that 27mL density is 1.84g/mL is added in 973mL water；40g sodium hydroxides are dissolved in water
And it is diluted to 1000mL；240g sodium hydroxides are dissolved in water and are diluted to 1000mL；5g potassium peroxydisulfates are dissolved in water, and are diluted
To 100mL；10g ascorbic acid is dissolved in water, and is diluted to 100mL, this solution is stored in the reagent bottle of brown, can at cold place
Stablize several weeks；13g ammonium molybdates are dissolved in 100mL water；0.35g potassium antimony tartrates are dissolved in 100mL water, in the case where being stirred continuously
Ammonium molybdate solution is added in 300mL sulfuric acid slowly, adds antimony tartrate potassium solution and is uniformly mixed, this solution is stored in brown
In reagent bottle, it can be preserved two months at cold place；Weigh the phosphorus that 0.2197 ± 0.001g is let cool in 110 DEG C of dry 2h in drier
Acid dihydride potassium with being transferred to after water dissolution in 1000mL volumetric flasks, adds in about 800mL water plus 5mL sulfuric acid is diluted with water to mark
Line and mixing, this standard solution of 1.00mL contain 50.0 μ g phosphorus；The phosphorus standard solution of 10.0mL is transferred in 250mL volumetric flasks,
Graticule and mixing are diluted with water to, this standard solution of 1.00mL contains 2.0 μ g phosphorus；0.5g phenolphthalein is dissolved in 50mL95% ethyl alcohol；
（2）Sample preparation：It takes and the pH value that 1mL sulfuric acid adjusts sample is added in after 500mL water samples, be allowed to less than or equal to 1 or not
Any reagent is added to be preserved in cold place, take 25mL samples in tool fill in graded tube in, should carefully be shaken up when taking, with obtain dissolving part and
Floating parts are respectively provided with representative sample；
（3）Determination step：Alkaline potassium per-sulfate digestion：Add 4mL potassium peroxydisulfates into sample, after the lid for having plug graded tube is stoppered, use
One napkin and line tighten glass stopper, are placed on to be placed in high pressure steam boiler in large beaker and heat, and treat that pressure reaches 1.1kg/
cm2, when relevant temperature is 120 DEG C, stopping heating after 30min is kept, after pressure gauge reading is down to zero, taking-up is let cool, then
It is diluted with water to graticule；25mL samples are taken in conical flask, addend grain bead adds 2mL nitric acid to heat concentration on electric hot plate
To 10mL, after cold plus 5mL nitric acid, reheating are concentrated into 10mL, let cool, add 3mL perchloric acid, be heated to perchloric acid and emit white cigarette, this
When can on conical flask plus small funnel or adjust electric plate temperature, digestion solution is made to maintain the reflux for state in conical flask inner wall, until
Remaining 3~4mL, lets cool, adds water 10mL, adds 1 drop phenolphthalein indicator, and sodium hydroxide solution is added dropwise to just in blush, then be added dropwise
Sulfuric acid solution make it is micro- it is red just decorporate, abundant mixing, move to tool plug graded tube in, be diluted with water to graticule, disappear respectively to each part
It solves and 1mL ascorbic acid solution mixings is added in liquid, add the abundant mixing of 2mL molybdate solutions after 30s, after placing 15min at room temperature,
The use of light path is 30mm cuvettes, under 700nm wavelength, reference is done with water, measures absorbance, deducts the absorbance of blank test
Afterwards, the content of phosphorus is checked in from working curve, 7 brace plug graded tubes is taken to be separately added into 0.0,0.50,1.00,3.00,5.00,
10.0,15.0mL phosphate standard solution, add water to 25mL, are then handled by determination step, do reference with water, measure and inhale
Luminosity, is deducted after the absorbance of blank test and the content drawing curve of corresponding phosphorus；
（4）As a result represent：Total phosphorus content is represented with C (mg/L), is calculated as follows：
C=m/V
In formula：M --- sample measures phosphorus content, μ g；
V --- measurement sample volume, mL.
The assay method it is efficient, the cycle is short, and measurement result is accurate, meets use of the people subsequently to water body,
The health of people to be protected, solves existing low to the assay method efficiency of phosphorus content in water quality, the cycle is long, and measure
The problem of resultant error is very big.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, it is every according to
Any simple modification for substantially being made according to the technology of the present invention, method to above example, equivalent variations, each fall within the present invention
Protection domain within.
Claims (1)
1. total phosphorus content method for measuring is quickly realized in Furniture Factory's sewage disposal, which is characterized in that comprise the following steps：
（1）Preparation of reagents：The sulfuric acid that 27mL density is 1.84g/mL is added in 973mL water；40g sodium hydroxides are dissolved in water
And it is diluted to 1000mL；240g sodium hydroxides are dissolved in water and are diluted to 1000mL；5g potassium peroxydisulfates are dissolved in water, and are diluted
To 100mL；10g ascorbic acid is dissolved in water, and is diluted to 100mL, this solution is stored in the reagent bottle of brown, can at cold place
Stablize several weeks；13g ammonium molybdates are dissolved in 100mL water；0.35g potassium antimony tartrates are dissolved in 100mL water, in the case where being stirred continuously
Ammonium molybdate solution is added in 300mL sulfuric acid slowly, adds antimony tartrate potassium solution and is uniformly mixed, this solution is stored in brown
In reagent bottle, it can be preserved two months at cold place；Weigh the phosphorus that 0.2197 ± 0.001g is let cool in 110 DEG C of dry 2h in drier
Acid dihydride potassium with being transferred to after water dissolution in 1000mL volumetric flasks, adds in about 800mL water plus 5mL sulfuric acid is diluted with water to mark
Line and mixing, this standard solution of 1.00mL contain 50.0 μ g phosphorus；The phosphorus standard solution of 10.0mL is transferred in 250mL volumetric flasks,
Graticule and mixing are diluted with water to, this standard solution of 1.00mL contains 2.0 μ g phosphorus；0.5g phenolphthalein is dissolved in 50mL95% ethyl alcohol；
（2）Sample preparation：It takes and the pH value that 1mL sulfuric acid adjusts sample is added in after 500mL water samples, be allowed to less than or equal to 1 or not
Any reagent is added to be preserved in cold place, take 25mL samples in tool fill in graded tube in, should carefully be shaken up when taking, with obtain dissolving part and
Floating parts are respectively provided with representative sample；
（3）Determination step：Alkaline potassium per-sulfate digestion：Add 4mL potassium peroxydisulfates into sample, after the lid for having plug graded tube is stoppered, use
One napkin and line tighten glass stopper, are placed on to be placed in high pressure steam boiler in large beaker and heat, and treat that pressure reaches 1.1kg/
cm2, when relevant temperature is 120 DEG C, stopping heating after 30min is kept, after pressure gauge reading is down to zero, taking-up is let cool, then
It is diluted with water to graticule；25mL samples are taken in conical flask, addend grain bead adds 2mL nitric acid to heat concentration on electric hot plate
To 10mL, after cold plus 5mL nitric acid, reheating are concentrated into 10mL, let cool, add 3mL perchloric acid, be heated to perchloric acid and emit white cigarette, this
When can on conical flask plus small funnel or adjust electric plate temperature, digestion solution is made to maintain the reflux for state in conical flask inner wall, until
Remaining 3~4mL, lets cool, adds water 10mL, adds 1 drop phenolphthalein indicator, and sodium hydroxide solution is added dropwise to just in blush, then be added dropwise
Sulfuric acid solution make it is micro- it is red just decorporate, abundant mixing, move to tool plug graded tube in, be diluted with water to graticule, disappear respectively to each part
It solves and 1mL ascorbic acid solution mixings is added in liquid, add the abundant mixing of 2mL molybdate solutions after 30s, after placing 15min at room temperature,
The use of light path is 30mm cuvettes, under 700nm wavelength, reference is done with water, measures absorbance, deducts the absorbance of blank test
Afterwards, the content of phosphorus is checked in from working curve, 7 brace plug graded tubes is taken to be separately added into 0.0,0.50,1.00,3.00,5.00,
10.0,15.0mL phosphate standard solution, add water to 25mL, are then handled by determination step, do reference with water, measure and inhale
Luminosity, is deducted after the absorbance of blank test and the content drawing curve of corresponding phosphorus；
（4）As a result represent：Total phosphorus content is represented with C (mg/L), is calculated as follows：
C=m/V
In formula：M --- sample measures phosphorus content, μ g；
V --- measurement sample volume, mL.
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| CN201611008906.3A CN108072583A (en) | 2016-11-16 | 2016-11-16 | Total phosphorus content method for measuring is quickly realized in Furniture Factory's sewage disposal |
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| CN201611008906.3A CN108072583A (en) | 2016-11-16 | 2016-11-16 | Total phosphorus content method for measuring is quickly realized in Furniture Factory's sewage disposal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540076A (en) * | 2020-11-04 | 2021-03-23 | 飞鸣科学仪器（武汉）有限公司 | Detection reagent for detecting total phosphorus content in wastewater and preparation process thereof |
-
2016
- 2016-11-16 CN CN201611008906.3A patent/CN108072583A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112540076A (en) * | 2020-11-04 | 2021-03-23 | 飞鸣科学仪器（武汉）有限公司 | Detection reagent for detecting total phosphorus content in wastewater and preparation process thereof |
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Application publication date: 20180525 |