CN104880378B - A kind of copper that determines is dispelled the method for copper content in root water dropper cupric masterbatch - Google Patents
A kind of copper that determines is dispelled the method for copper content in root water dropper cupric masterbatch Download PDFInfo
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Abstract
The present invention provides a kind of copper that determines and dispelled the method for copper content in root water dropper cupric masterbatch, using dissolving separation by precipitation, solvent uses distilled water and decahydronaphthalene and/or naphthane, masterbatch dissolves in a heated condition, solution is layered, wherein distilled water is in lower section, naphthane and/decahydronaphthalene are up, the polyethylene contained in masterbatch stays in upper strata, the larger copper of density and insoluble a small amount of inorganic matter fall in lower floor's distilled water or drag, copper content can be drawn by formula, this method can correctly determine the content of copper in cupric masterbatch, and method is succinctly easy, it is with low cost, available for production process technology and control of product quality.
Description
Technical field
Field is determined the invention belongs to tenor, determining copper more particularly, to one kind dispels copper in root water dropper cupric masterbatch
The method of content.
Background technology
Copper is a kind of metallic chemical element, is also a kind of trace element necessary to human body, copper is also mankind's discovery
One of earliest metal, is a kind of widely used metal of the mankind, belongs to heavy metal.There are some researches show heavy metal copper is not only
The indispensable element of plant growth, can produce bivalent cupric ion with the organic acid interaction of plant secretion again, work as copper ion
Accumulated concentrations reach or between certain limit it is interval when, coercive inhibitory action will be produced to crop especially root growth.
Drip irrigation below the surface is one of irrigation technique for most being economized on water in current world wide, and it has many advantages, such as, it has also become micro-
One of canonical form of irrigation technology application, is the drip irrigation product of new generation for representing the future of agriculture development of water saving irrigation trend, will draw
Lead China's agricultural water-saving irrigation development new direction.The core parts of drip irrigation below the surface are buried douches, but because plant
Hydrotropism's growth of root, can make the hair root of crop enter the weeper of douche, result in blockage, to solve this problem, copper is dispelled
Root water dropper, which is developed, to be designed.
Copper is dispelled many production capacities that at least directly affect injection machine of the root water dropper with copper content in cupric masterbatch.Therefore set up a kind of
The detection method of copper content, contributes to enterprise to be given birth in low cost, the succinct easy cupric masterbatch used suitable for enterprise
Production. art and final product quality control, and related detection method not yet has clear and definite document report so far.
The content of the invention
The present invention provides a kind of copper that determines and dispelled the method for copper content in root water dropper cupric masterbatch, and this method can be surveyed accurately
Determine copper content in masterbatch, the control and quality control of production technology are used for suitable for enterprise.
The technical solution adopted by the present invention is：
A kind of copper that determines is dispelled the method for copper content in root water dropper cupric masterbatch, is comprised the following steps：
S1：The cupric masterbatch of certain mass is weighed with assay balance, quality m is obtained0；
S2：A clean flask is taken, distilled water is first added, naphthane and/or decahydronaphthalene is added, cupric masterbatch is put
In wherein, under nitrogen guard mode, heating for dissolving forms limpid solution；
S3：Allow the clear solution Temperature fall of generation, be dissolved in material cooling in naphthane and/or decahydronaphthalene, crystalline
Into precipitation, sediment is taken out, is dried in vacuo after being cleaned with distilled water, obtains quality m1；
S4：The mass fraction of copper in cupric masterbatch is calculated according to equation below：
S5：Repeat step S1-S4, parallel determination is multigroup, and it is copper content in masterbatch to obtain average value.
It is used as preferred embodiments of the present invention, the cupric masterbatch quality of addition：Naphthane and/or decahydronaphthalene volume：Distilled water
Volume=1-2g：30-60ml：30-50ml.
As preferred embodiments of the present invention, in S2, it is 130-135 DEG C to dissolve by heating temperature.
This method includes the situation of polyethylene suitable for cupric masterbatch.
In a kind of more preferred embodiment, the polyethylene is high density polyethylene (HDPE).
In order to ensure the accuracy determined, this method is particularly suitable for use in the situation of copper content 38%-42% in cupric masterbatch.
The present invention has the advantages and positive effects of：The copper that the present invention is provided is dispelled copper content in root water dropper cupric masterbatch
Assay method uses dissolving-separation by precipitation.Distilled water is with naphthane and/or decahydronaphthalene because of insoluble and density otherness
And there is lamination, wherein distilled water is in lower section, and up, masterbatch is dissolved in solvent but can not be molten solvent at a certain temperature
In distilled water, such polyethylene is left in solvent, and the larger copper of density and a small amount of inorganic matter insoluble in solvent fall burning
In bottle lower floor distilled water or drag, this method can correctly determine the content of copper in cupric masterbatch, and method is succinctly easy
It is capable, with low cost, available for production process technology and control of product quality.
Embodiment
The solution of the present invention is further detailed with reference to specific embodiment, certain a batch of cupric masterbatch is surveyed
The content of middle copper, 5 groups of parallel determination, is designated as parallel group 1-5.
Water dropper formula is by high density polyethylene (HDPE), copper powder and a small amount of inorganic matter composition.
Parallel group 1：
1. the cupric masterbatch that certain mass is weighed with assay balance is weighed, and obtains quality m0=1.112 grams；
2. the amount of trying to please is 100ml quartzy conical flask one, and 30ml distilled water is first added into flask, then to flask
Middle addition 30ml tetrahydrochysene naphtho-s are passed through nitrogen and protected, and flask are placed in heat collecting type constant temperature blender with magnetic force, oil bath heating
Constant temperature and cupric masterbatch is placed in one after to 135 DEG C, stops heating (this mistake after masterbatch is completely dissolved and to form limpid solution
Journey is carried out in fume hood)；
3. the clear solution Temperature fall of generation is allowed, the high density polyethylene (HDPE) cooling, crystallization in solution form precipitation, take out
Polyethylene precipitate thing, polyethylene precipitate thing is cleaned with distilled water, and is dried in vacuo at 80 DEG C, and weigh to obtain quality m1=0.670
Gram.
Parallel group 2：
1. the cupric masterbatch that certain mass is weighed with assay balance is weighed, and obtains quality m0=1.329 grams；
2. the amount of trying to please is 100ml quartzy conical flask one, and 30ml distilled water is first added into flask, then to flask
Middle addition 40ml tetrahydrochysene naphtho-s are passed through nitrogen and protected, and flask are placed in heat collecting type constant temperature blender with magnetic force, oil bath heating
Constant temperature and cupric masterbatch is placed in one after to 135 DEG C, stops heating (this mistake after masterbatch is completely dissolved and to form limpid solution
Journey is carried out in fume hood)；
3. the clear solution Temperature fall of generation is allowed, the high density polyethylene (HDPE) cooling, crystallization in solution form precipitation, take out
Polyethylene precipitate thing, polyethylene precipitate thing is cleaned with distilled water, and is dried in vacuo at 80 DEG C, and weigh to obtain quality m1=0.787
Gram.
Parallel group 3：
1. the cupric masterbatch that certain mass is weighed with assay balance is weighed, and obtains quality m0=1.553 grams；
2. the amount of trying to please is 100ml quartzy conical flask one, the sealing of 50ml tetrahydrochysenes naphtho- is added into flask, by flask
It is placed in heat collecting type constant temperature blender with magnetic force, cupric masterbatch is simultaneously placed in one by oil bath heating to constant temperature after 135 DEG C, treats that masterbatch is complete
Fully dissolved, which is formed, stops heating after limpid solution (this process is carried out in fume hood)；
3. the clear solution Temperature fall of generation is allowed, the high density polyethylene (HDPE) cooling, crystallization in solution form precipitation, take out
Polyethylene precipitate thing, polyethylene precipitate thing is cleaned with distilled water, and is dried in vacuo at 80 DEG C, and weigh to obtain quality m1=0.962
Gram.
Parallel group 4：
1. the cupric masterbatch that certain mass is weighed with assay balance is weighed, and obtains quality m0=1.710 grams；
2. the amount of trying to please is 100ml quartzy conical flask one, and 30ml distilled water is first added into flask, then to flask
Middle addition 55ml tetrahydrochysene naphtho-s are passed through nitrogen and protected, and flask are placed in heat collecting type constant temperature blender with magnetic force, oil bath heating
Constant temperature and cupric masterbatch is placed in one after to 135 DEG C, stops heating (this mistake after masterbatch is completely dissolved and to form limpid solution
Journey is carried out in fume hood)；
3. the clear solution Temperature fall of generation is allowed, the high density polyethylene (HDPE) cooling, crystallization in solution form precipitation, take out
Polyethylene precipitate thing, polyethylene precipitate thing is cleaned with distilled water, and is dried in vacuo at 80 DEG C, and weigh to obtain quality m1=1.062
Gram.
Parallel group 5：
1. the cupric masterbatch that certain mass is weighed with assay balance is weighed, and obtains quality m0=1.946 grams；
2. the amount of trying to please is 100ml quartzy conical flask one, and 30ml distilled water is first added into flask, then to flask
Middle addition 60ml tetrahydrochysene naphtho-s are passed through nitrogen and protected, and flask are placed in heat collecting type constant temperature blender with magnetic force, oil bath heating
Constant temperature and cupric masterbatch is placed in one after to 135 DEG C, stops heating (this mistake after masterbatch is completely dissolved and to form limpid solution
Journey is carried out in fume hood)；
3. the clear solution Temperature fall of generation is allowed, the high density polyethylene (HDPE) cooling, crystallization in solution form precipitation, take out
Polyethylene precipitate thing, polyethylene precipitate thing is cleaned with distilled water, and is dried in vacuo at 80 DEG C, and weigh to obtain quality m1=1.187
Gram.
The mass fraction of copper in the cupric masterbatch of parallel group 1,2,3,4,5 is calculated according to formula：
Measurement result see the table below 1.As can be known from the results of Table 1, in this method energy Accurate Determining cupric masterbatch copper content, its
Mean relative deviation (RSD) is 2.38%, illustrates that this method determines precision higher.
Each parallel group measurement result of table 1
One embodiment of the present of invention is described in detail above, but the content is only the preferable implementation of the present invention
Example, it is impossible to be considered as the practical range for limiting the present invention.All equivalent changes made according to the present patent application scope and improvement
Deng within the patent covering scope that all should still belong to the present invention.
Claims (6)
1. a kind of copper that determines is dispelled the method for copper content in root water dropper cupric masterbatch, it is characterised in that：Comprise the following steps：
S1：The cupric masterbatch of certain mass is weighed with assay balance, quality m is obtained0；
S2：A clean flask is taken, distilled water is first added, naphthane and/or decahydronaphthalene is added, cupric masterbatch is placed in it
In, under nitrogen guard mode, heating for dissolving forms limpid solution；
S3：Allow the clear solution Temperature fall of generation, material cooling, the crystallization being dissolved in naphthane and/or decahydronaphthalene form heavy
Form sediment, take out sediment, be dried in vacuo after being cleaned with distilled water, obtain quality m1；
S4：The mass fraction of copper in cupric masterbatch is calculated according to equation below：
<mrow>
<mi>W</mi>
<mrow>
<mo>(</mo>
<mi>Cu</mi>
<mo>)</mo>
</mrow>
<mo>=</mo>
<mfrac>
<mrow>
<msub>
<mi>m</mi>
<mn>0</mn>
</msub>
<mo>-</mo>
<msub>
<mi>m</mi>
<mn>1</mn>
</msub>
</mrow>
<msub>
<mi>m</mi>
<mn>0</mn>
</msub>
</mfrac>
<mo>&times;</mo>
<mn>100</mn>
<mo>%</mo>
<mo>;</mo>
</mrow>
S5：Repeat step S1-S4, parallel determination is multigroup, and it is copper content in masterbatch to obtain average value.
2. according to the method described in claim 1, it is characterised in that：The cupric masterbatch quality of addition：Naphthane and/or decahydronaphthalene
Volume：Distilled water volume=1-2g：30-60ml：30-50ml.
3. method according to claim 1 or 2, it is characterised in that：In S2, it is 130-135 DEG C to dissolve by heating temperature.
4. method according to claim 3, it is characterised in that：This method includes the feelings of polyethylene suitable for cupric masterbatch
Condition.
5. method according to claim 4, it is characterised in that：The polyethylene is high density polyethylene (HDPE).
6. method according to claim 5, it is characterised in that：This method copper content 38%- suitable for cupric masterbatch
42% situation.
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| CN201510236980.XA CN104880378B (en) | 2015-05-08 | 2015-05-08 | A kind of copper that determines is dispelled the method for copper content in root water dropper cupric masterbatch |
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| CN201510236980.XA CN104880378B (en) | 2015-05-08 | 2015-05-08 | A kind of copper that determines is dispelled the method for copper content in root water dropper cupric masterbatch |
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| CN104880378A CN104880378A (en) | 2015-09-02 |
| CN104880378B true CN104880378B (en) | 2017-11-03 |
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| CN111735732A (en) * | 2020-07-03 | 2020-10-02 | 江苏亨通精工金属材料有限公司 | Method for testing copper content of plastic particles of dry copper rice mill |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404309A1 (en) * | 1994-02-11 | 1995-08-17 | Polster Schlageter Klaus | Investigation of precipitation of materials from, or solution in, liquids |
| CN102169074A (en) * | 2010-12-28 | 2011-08-31 | 东莞市中鼎检测技术有限公司 | Method for detecting heavy metal elements in metal coating |
| CN104089844A (en) * | 2014-07-16 | 2014-10-08 | 安徽鑫科新材料股份有限公司 | Method for measuring content of oil in scrap copper |
-
2015
- 2015-05-08 CN CN201510236980.XA patent/CN104880378B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4404309A1 (en) * | 1994-02-11 | 1995-08-17 | Polster Schlageter Klaus | Investigation of precipitation of materials from, or solution in, liquids |
| CN102169074A (en) * | 2010-12-28 | 2011-08-31 | 东莞市中鼎检测技术有限公司 | Method for detecting heavy metal elements in metal coating |
| CN104089844A (en) * | 2014-07-16 | 2014-10-08 | 安徽鑫科新材料股份有限公司 | Method for measuring content of oil in scrap copper |
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