CN204412273U - The ion exchange column of separation and concentration copper - Google Patents
The ion exchange column of separation and concentration copper Download PDFInfo
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- CN204412273U CN204412273U CN201420726484.3U CN201420726484U CN204412273U CN 204412273 U CN204412273 U CN 204412273U CN 201420726484 U CN201420726484 U CN 201420726484U CN 204412273 U CN204412273 U CN 204412273U
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- cylinder
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- glass piston
- exchange column
- ion exchange
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Abstract
This patent relates to a kind of ion exchange column of separation and concentration copper, comprise reservoir and cylinder, described cylinder is positioned at the bottom of reservoir, it is characterized in that: the bottom of cylinder is provided with angular cut, the top of cylinder is provided with the glass piston first running through cylinder, and the bottom of cylinder is provided with the glass piston second running through cylinder, installs dacron thread in the cylinder space in glass piston second, install filler in cylinder space on dacron thread, described filler is EDTA type resin.Advantage is: this patent realizes copper ion and Matrix separation and reaches concentrated object, and this post can be eliminated the Matrix effects in detection and reduce analytical method Monitoring lower-cut.
Description
Technical field
The invention belongs to the preconditioning technique field that copper ion detects, and particularly relates to a kind of ion exchange column of separation and concentration copper.
Background technology
At present, in high salt sample, copper trace Element detection mainly adopts atomic absorption spectrography (AAS) (AAS) and inductively coupled plasma mass spectrometry (ICP-MS).When adopting Atomic absorption flame method to detect, salt analyzes blocking combustion head; When detecting with Atomic Absorption Spectrometry Graphite Furnace, high-load salinity matrix brings very big ambient interferences, makes the signal of copper be difficult to detect, causes testing result inaccurate; And when analyzing high salt sample with ICP-MS, matrix salinity easily deposits thus the accuracy of impact analysis on torch pipe, sampling spiroid, extraction cone or ion lens, detection cannot continue.Therefore the difficult point that high salt sample trace heavy metals detects is the interference eliminating matrix.
Summary of the invention
The invention provides a kind of ion exchange column of separation and concentration copper for solving in known technology the technical problem that exists, this realizes copper ion and Matrix separation and reaches concentrated object, and this post can be eliminated the Matrix effects in detection and reduce analytical method Monitoring lower-cut.
A kind of ion exchange column of separation and concentration copper, comprise reservoir and cylinder, described cylinder is positioned at the bottom of reservoir, it is characterized in that: the bottom of cylinder is provided with angular cut, the top of cylinder is provided with the glass piston first running through cylinder, and the bottom of cylinder is provided with the glass piston second running through cylinder, installs dacron thread in the cylinder space in glass piston second, install filler in cylinder space on dacron thread, described filler is EDTA type resin.
The advantage that the invention has and good effect are:
Because the invention adopts technique scheme, utilize the characterization of adsorption of filler in cylinder, under near-neutral sulfite deinking, this exchange column is adsorb traces copper ion from the solution flowed through optionally, then with dust technology by copper ion wash-out, realize the separation and concentration of trace copper ion, eliminate the interference of a large amount of sodium chloride matrix, improve the sensitivity of analytical method, solve an analysis difficult problem for trace copper ion in high salt sample, both eliminate Matrix effects, again reduce analytical method Monitoring lower-cut.
Accompanying drawing explanation
Fig. 1 is the structural representation of the invention;
In figure: 1, reservoir; 2, glass piston first; 3, filler; 4, dacron thread; 5, glass piston second; 6, angular cut; 7, cylinder.
Detailed description of the invention
For innovation and creation content, the Characteristic of the invention can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1,
A kind of ion exchange column of separation and concentration copper, comprise reservoir 1 and cylinder 7, cylinder 7 is positioned at the bottom of reservoir, the bottom of cylinder is provided with angular cut 6, the top of cylinder is provided with the glass piston first 2 running through cylinder, and the bottom of cylinder is provided with the glass piston second 5 running through cylinder, installs dacron thread 4 in the cylinder space in glass piston second, be provided with filler 3 in cylinder space on dacron thread, above-mentioned filler is EDTA type resin.
Wherein, EDTA resin is a kind of commercialization chelate resin for many years, and when pH >=6.5 of solution, heavy metal ion can be adsorbed on resin; As the pH<1.0 of solution, heavy metal ion can not be adsorbed on resin and (see Zhou Jinfan, Peng Ling, Hu Qing etc. extration resin and chelating resin are separated and application [J] in reagent purification at metallic element. physical and chemical inspection-chemical fascicle, 2011,47 (2): 201-205.).Therefore, EDTA resin is optionally separated trace heavy metals from containing the solution of high salt in Nearly neutral medium, then heavy metal ion is washed down from resin with salpeter solution, realizes being separated of heavy metal ion and high salt matrix.(it is strong what sees the people such as how to be good for, Feng Min, Zhu Zhen is happy to be waited .Chelex 1 resin to the absorption property of lead, cadmium, sodium and is applied to aas determination height salt Pb in food, cadmium content [J]. physical and chemical inspection-chemical fascicle, 2013,49 (2): 170-173) adsorbed by EDTA chelating resin, by lead, cadmium and sodium chloride Matrix separation, adopt aas determination, solve the ambient interferences problem that high salt matrix is brought, accurately detect plumbous, cadmium content in high salt sample.
The operating principle of the invention is:
1. fill post: the top toward the bottom glass piston second 5 of cylinder 7 is encased inside a small amount of dacron thread 4, close glass piston first 2, appropriate filler is placed in large volume reservoir 1, add appropriate amount of deionized water, after stirring with glass bar, open glass piston first 2, make filler flow into the top of dacron thread 4;
2. use: close glass piston first 2 and glass piston second 5,10mL dust technology (volume ratio is 1%) is added in large volume reservoir 1, open glass piston first 2 and glass piston second 5, exchange column pre-activate, add 10mL deionized water toward large volume reservoir 1 at twice again and cross post, wash away dust technology; Get appropriate amount of sample solution (10 ~ 20mL) and add large volume reservoir 1, cross post, efflux discards, cross post by 10mL deionized water at twice again, efflux discards, and finally uses 10mL dust technology (volume ratio is 1%) wash-out, collect eluent, to be measured.
Although be described the preferred embodiment of the invention by reference to the accompanying drawings above; but the invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under the enlightenment of the invention; do not departing under the ambit that the invention aim and claim protect, can also make a lot of form, these all belong within the protection domain of the invention.
Claims (1)
1. the ion exchange column of a separation and concentration copper, comprise reservoir and cylinder, described cylinder is positioned at the bottom of reservoir, it is characterized in that: the bottom of cylinder is provided with angular cut, the top of cylinder is provided with the glass piston first running through cylinder, and the bottom of cylinder is provided with the glass piston second running through cylinder, installs dacron thread in the cylinder space in glass piston second, install filler in cylinder space on dacron thread, described filler is EDTA type resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420726484.3U CN204412273U (en) | 2014-11-26 | 2014-11-26 | The ion exchange column of separation and concentration copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420726484.3U CN204412273U (en) | 2014-11-26 | 2014-11-26 | The ion exchange column of separation and concentration copper |
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| Publication Number | Publication Date |
|---|---|
| CN204412273U true CN204412273U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420726484.3U Expired - Fee Related CN204412273U (en) | 2014-11-26 | 2014-11-26 | The ion exchange column of separation and concentration copper |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053359A (en) * | 2016-05-18 | 2016-10-26 | 中华人民共和国淮安出入境检验检疫局 | Method using static adsorption ion exchange technology to separate and measure copper ions in salt |
-
2014
- 2014-11-26 CN CN201420726484.3U patent/CN204412273U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053359A (en) * | 2016-05-18 | 2016-10-26 | 中华人民共和国淮安出入境检验检疫局 | Method using static adsorption ion exchange technology to separate and measure copper ions in salt |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20161126 |