CN109142326A - A method of measurement iron ion content - Google Patents
A method of measurement iron ion content Download PDFInfo
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- CN109142326A CN109142326A CN201811337655.2A CN201811337655A CN109142326A CN 109142326 A CN109142326 A CN 109142326A CN 201811337655 A CN201811337655 A CN 201811337655A CN 109142326 A CN109142326 A CN 109142326A
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- iron ion
- ion content
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/73—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited using plasma burners or torches
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Abstract
The present invention provides a kind of methods for measuring iron ion content, measurement for iron ion content in catalyst, additive or auxiliary agent, content includes preparing standard working solution: preparing 2% nitric acid solution, the pure iron silk that precise quality is added in 2% nitric acid solution is configured to multiple iron ion standard solution at concentration gradient；It draws iron ion content standard curve: scanning the characteristic spectral line of the multiple iron ion standard solution with ICP plasma emission spectrometer, obtain iron ion content standard curve；It with the characteristic spectral line of iron ion in ICP plasma emission spectrometer scanning catalyst, additive or auxiliary agent sample, and is compared with the iron ion content standard curve, obtains the content of iron ion.According to the technical solution of the present invention, analysis speed is fast, saves a large amount of chemical agents, can save labour turnover every year and reagent cost, data accuracy height, minimum detectability reach 10ppb.
Description
Technical field
The present invention relates to metallurgical analysis technical fields, in particular to a kind of method for measuring iron ion content.
Background technique
The method of iron content is spectrophotometry in original measurement catalyst, additive or auxiliary agent, when being analyzed with the method,
Different catalyst, additive or auxiliary agent sample handling characteristics differences are analyzed so needing to establish the standard curve of respective numbers
It is complicated for operation, accuracy is lower, data result is quoted slow and needs a large amount of chemical agents.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, the object of the present invention is to provide a kind of methods for measuring iron ion content.
In view of this, technical solution of the present invention provides a kind of method for measuring iron ion content, for catalyst, add
Add the measurement of iron ion content in agent or auxiliary agent, packet content includes preparation standard working solution: 2% nitric acid solution is prepared, in 2% nitre
The pure iron silk that precise quality is added in acid solution is configured to multiple iron ion standard solution；It is bent to draw iron ion content standard
Line: the characteristic spectral line of the multiple iron ion standard solution is scanned with ICP plasma emission spectrometer, obtains iron ion content
Standard curve；With the characteristic spectral line of iron ion in ICP plasma emission spectrometer scanning catalyst, additive or auxiliary agent, and
It is compared with the iron ion content standard curve, obtains the content of iron ion.
Preferred embodiment, 2% nitric acid solution of the configuration, particular content are as follows: in the volumetric flask of 100ml, first put 30ml
Pure water, then the commercially available concentrated nitric acid of 3.08ml is taken to be added in bottle, stirred evenly, it is complete to heat release, then plus pure water to volumetric bottle
At groove, that is, prepares and complete 2% nitric acid solution.
Compared with the existing technology, a kind of method measuring iron ion content provided by the invention has the advantage that
The content into iron ion in factory's catalyst, additive or auxiliary agent is measured using ICP plasma emission spectrometer, is replaced
For the measuring method of iron ion in original method measurement catalyst, additive or auxiliary agent.Sample only needs molten with 2% nitric acid
Solution establishes a standard curve, and analysis speed is fast, saves a large amount of chemical agents, can save labour turnover every year, medicament
17.64 ten thousand yuan of cost, data accuracy is high, and minimum detectability reaches 10ppb.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Specific embodiment
In order to be more clearly understood that aforementioned aspect of the present invention, feature and advantage, With reference to embodiment
The present invention is further described in detail.It should be noted that in the absence of conflict, embodiments herein and reality
The feature applied in example can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
It is according to an embodiment of the invention it is a kind of measure iron ion content method, for catalyst, additive or
The measurement of iron ion content in auxiliary agent, content include preparing standard working solution: 2% nitric acid solution are prepared, in 2% nitric acid solution
The middle pure iron silk that precise quality is added is configured to multiple iron ion standard solution；It draws iron ion content standard curve: using
ICP plasma emission spectrometer scans the characteristic spectral line of the multiple iron ion standard solution, obtains iron ion content standard
Curve；With the characteristic spectral line of iron ion in ICP plasma emission spectrometer scanning catalyst, additive or auxiliary agent, and with institute
The comparison of iron ion content standard curve is stated, the content of iron ion is obtained.
Preferred embodiment, 2% nitric acid solution of the configuration, specifically includes: in the volumetric flask of 100ml, first putting 30ml's
Pure water, then take 3.08ml commercially available concentrated nitric acid be added bottle in, stir evenly, it is complete to heat release, then plus pure water to volumetric bottle quarter
At line, that is, prepares and complete 2% nitric acid solution.
It should be noted that when sample analysis, three doses of solid are dissolved with 2% nitric acid, excessive for iron content with 2%
Nitric acid suitably dilutes, and three doses of liquid is directly suitably diluted with 2% nitric acid.Then with ICP plasma emission spectrometer scanning three
The characteristic spectral line of agent sample iron, carrys out iron content in test sample.
Specific embodiment
By taking hydrochloric acid and sodium hypochlorite solvent as an example, surveyed respectively using spectrophotometry and ICP plasma emission spectrometer
Determine the content of the iron ion in solvent, test result is as follows shown in table:
Technical solution of the present invention is explained above, according to the technical solution of the present invention, only need to establish a standard curve,
Analysis speed is fast and saves analysis time；Sample treatment is simple, only makes of 2% nitric acid and dissolves and dilute, and saves a large amount of
Chemical agent；Testing result precision, accuracy all greatly improve, and minimum detectability reaches 10ppb.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the invention
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more of the embodiments or examples with
Suitable mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of method for measuring iron ion content, special for the measurement of iron ion content in catalyst, additive or auxiliary agent
Sign is, comprising:
It prepares standard working solution: preparing 2% nitric acid solution, the pure iron silk of precise quality is added in 2% nitric acid solution
It is configured to multiple iron ion standard solution at concentration gradient；
It draws iron ion content standard curve: scanning the multiple iron ion standard solution with ICP plasma emission spectrometer
Characteristic spectral line, obtain iron ion content standard curve；
With the characteristic spectral line of iron ion in ICP plasma emission spectrometer scanning catalyst, additive or auxiliary agent sample, and with
The iron ion content standard curve compares, and obtains the content of iron ion.
2. according to a kind of method for measuring iron ion content described in claim 1, it is characterised in that 2% nitric acid solution of configuration, tool
Hold in vivo are as follows: in the volumetric flask of 100ml, the pure water of 30ml is first put, then the commercially available concentrated nitric acid of 3.08ml is taken to be added in bottle, stirring
Uniformly, complete to heat release, then plus pure water to the groove of volumetric bottle at, that is, prepare complete 2% nitric acid solution.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811337655.2A CN109142326A (en) | 2018-11-12 | 2018-11-12 | A method of measurement iron ion content |
Applications Claiming Priority (1)
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| CN201811337655.2A CN109142326A (en) | 2018-11-12 | 2018-11-12 | A method of measurement iron ion content |
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| CN109142326A true CN109142326A (en) | 2019-01-04 |
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| CN201811337655.2A Pending CN109142326A (en) | 2018-11-12 | 2018-11-12 | A method of measurement iron ion content |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077036A (en) * | 2019-12-30 | 2020-04-28 | 广州傲农生物科技有限公司 | Rapid determination method for detecting content of ferrous iron in various iron additives |
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| US20040089608A1 (en) * | 2001-08-27 | 2004-05-13 | Vo Toan Phan | Adsorbents for removing heavy metals and methods for producing and using the same |
| CN101671370A (en) * | 2009-09-16 | 2010-03-17 | 苏州大学 | Ionic liquid type iron (III) complex and application thereof |
| CN102419321A (en) * | 2011-08-24 | 2012-04-18 | 同济大学 | Method for determining maximum value of ferrous ion impurity content |
| CN108318571A (en) * | 2017-12-19 | 2018-07-24 | 浙江省海洋水产研究所 | The detection method of content of beary metal in a kind of aquatic products |
| CN108333223A (en) * | 2018-01-11 | 2018-07-27 | 上海电气集团股份有限公司 | The formulating method of iron concentration bioassay standard curve and its application |
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2018
- 2018-11-12 CN CN201811337655.2A patent/CN109142326A/en active Pending
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| US20040089608A1 (en) * | 2001-08-27 | 2004-05-13 | Vo Toan Phan | Adsorbents for removing heavy metals and methods for producing and using the same |
| CN101671370A (en) * | 2009-09-16 | 2010-03-17 | 苏州大学 | Ionic liquid type iron (III) complex and application thereof |
| CN102419321A (en) * | 2011-08-24 | 2012-04-18 | 同济大学 | Method for determining maximum value of ferrous ion impurity content |
| CN108318571A (en) * | 2017-12-19 | 2018-07-24 | 浙江省海洋水产研究所 | The detection method of content of beary metal in a kind of aquatic products |
| CN108333223A (en) * | 2018-01-11 | 2018-07-27 | 上海电气集团股份有限公司 | The formulating method of iron concentration bioassay standard curve and its application |
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| 马继飞 等: "电感耦合等离子体原子发射光谱法测定氟铍酸铵中的杂质元素", 《化学分析计量》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111077036A (en) * | 2019-12-30 | 2020-04-28 | 广州傲农生物科技有限公司 | Rapid determination method for detecting content of ferrous iron in various iron additives |
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