CN103528868B - A kind of uranium isotope ratio analysis source side method - Google Patents
A kind of uranium isotope ratio analysis source side method Download PDFInfo
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- CN103528868B CN103528868B CN201310498880.5A CN201310498880A CN103528868B CN 103528868 B CN103528868 B CN 103528868B CN 201310498880 A CN201310498880 A CN 201310498880A CN 103528868 B CN103528868 B CN 103528868B
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Abstract
The invention belongs to isotope source production technique field, be specifically related to a kind of uranium isotope ratio analysis source side method.Object simplifies source and course journey processed, shortens source time processed.The method comprises the following steps successively: the first step, extract the acid dissolution slag behind molten ore deposit with extract, proceeds to glass spinner flask, adds reductive agent; Do you second step, in the glass spinner flask of the described first step, add 36 ~ 108mg? KH
2pO
4; 3rd step, the glass spinner flask of described second step is put into shaking bath, carry out the preparation of sample source.The method can realize the quick and precisely analysis of uranium isotope ratio, once can 24 ~ 100, source processed, half a day consuming time.With this invention, 5 standard models such as GBW04110 ~ GBW04114 are carried out source processed and carried out
234u/
238u activity ratio is measured, and measured value and nominal value relative error are within ± 2.0%.
Description
Technical field
The invention belongs to isotope source production technique field, be specifically related to a kind of uranium isotope ratio analysis source side method.
Background technology
Uranium isotope ratio
234u/
238what U can be used for geological age determines year, also may be used for Prospecting For Uranium research.The analysis of current uranium isotope ratio mainly adopts alpha energy spectrum method, and the gordian technique of alpha energy spectrum method is source production technique.Current source production technique, after adopting post stratography purifying uranium, carries out electro-deposition source, loaded down with trivial details consuming time, and work efficiency is lower, and generalized case next time can only 2 ~ 5, source processed, whole cycle need 2 days.Therefore a kind of simple and easy to do source production technique for uranium isotope ratio analysis is studied extremely important.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, a kind of simple and easy to do source side method processed analyzed for uranium isotope ratio is provided, in order to simplify source and course journey processed, to shorten source time processed.
The present invention is achieved in that
A kind of uranium isotope ratio analysis source side method, comprises the following steps successively:
The first step, extract the acid dissolution slag behind molten ore deposit with extract, proceed to glass spinner flask, add reductive agent;
Second step, in the glass spinner flask of the described first step, add 36 ~ 108mgKH
2pO
4;
3rd step, the glass spinner flask of described second step is put into shaking bath, carry out the preparation of sample source.
A kind of uranium isotope ratio analysis source side method as above, wherein: in the first step, described extract is 0.1mol/LHCl and 2.9 ~ 3.4mol/LNaCl solution, and described reductive agent is ascorbic acid.
A kind of uranium isotope ratio analysis source side method as above, wherein: in the first step, described extracting liquid volume is 20 ~ 30mL, and described ascorbic acid is 0.4 ~ 1.0g.
A kind of uranium isotope ratio analysis source side method as above, wherein: in described 3rd step, the temperature controlling water-bath is 85 ~ 95 DEG C, and vibration velocity is 160 ~ 200r/min, amplitude 20mm, takes out after vibration 60 ~ 120min.
The invention has the beneficial effects as follows:
The present invention is a kind of simple and easy to do source production technique analyzed for uranium isotope ratio, can realize the quick and precisely analysis of uranium isotope ratio, once can 24 ~ 100, source processed, half a day consuming time.With this invention, 5 standard models such as GBW04110 ~ GBW04114 are carried out source processed and carried out
234u/
238u activity ratio is measured, and measured value and nominal value relative error are within ± 2.0%.
Embodiment
Below in conjunction with embodiment, a kind of uranium isotope ratio analysis source side method provided by the invention is described further:
A kind of uranium isotope ratio analysis source side method, comprises the following steps:
The first step, extract the acid dissolution slag behind molten ore deposit with extract, proceed in container, add reductive agent;
Second step, in the container of the first step, add 36 ~ 108mgKH
2pO
4;
3rd step, the container of second step is put into shaking bath, carry out the preparation of sample source.
For obtaining better effect, can select as follows: select 0.1mol/LHCl and 2.9 ~ 3.4mol/LNaCl solution as extract, selecting 0.4 ~ 1.0g ascorbic acid as reductive agent; Extracting liquid volume is 20 ~ 30mL.The temperature controlling water-bath is 85 ~ 95 DEG C, and vibration velocity is 160 ~ 200r/min, amplitude 20mm, takes out after vibration 60 ~ 120min.
Embodiment 1:
The present invention comprises the following steps successively:
The first step, extract the acid dissolution slag behind molten ore deposit with the 0.1mol/LHCl+2.9mol/LNaCl solution of 20mL, proceed in 100mL container, then add 0.4g ascorbic acid;
Second step, add 36mgKH
2pO
4;
3rd step, container is put into shaking bath, the temperature controlling water-bath is 85 DEG C, and vibration velocity is 160r/min, amplitude 20mm, takes out after vibration 60min.
In this embodiment, the 234U/238U isotope measure value of GBW04127 and nominal value relative error are 1.8%.
Embodiment 2:
The present invention comprises the following steps successively:
The first step, extract the acid dissolution slag behind molten ore deposit with the 0.1mol/LHCl+3.2mol/LNaCl solution of 25mL, proceed in 100mL container, then add 0.7g ascorbic acid;
Second step, add 72mgKH
2pO
4;
3rd step, container is put into shaking bath, the temperature controlling water-bath is 90 DEG C, and vibration velocity is 180r/min, amplitude 20mm, takes out after vibration 90min.
In this embodiment, GBW04127
234u/
238u isotope measure value and nominal value relative error are ± 1.5%.
Embodiment 3:
The present invention comprises the following steps successively:
The first step, extract the acid dissolution slag behind molten ore deposit with the 0.1mol/LHCl+3.4mol/LNaCl solution of 30mL, proceed in 100mL container, then add 1.0g ascorbic acid;
Second step, add 108mgKH
2pO
4;
3rd step, container is put into shaking bath, the temperature controlling water-bath is 95 DEG C, and vibration velocity is 200r/min, amplitude 20mm, takes out after vibration 120min.
In this embodiment, GBW04127
234u/
238u isotope measure value and nominal value relative error are 2.0%.
Embodiment given by the present invention is only the citing to a kind of uranium isotope ratio analysis source side method provided by the present invention, can not contain whole summary of the invention; Protection domain of the presently claimed invention all should be belonged to amendment to the replacement that the present invention carries out.
Claims (3)
1. a uranium isotope ratio analysis source side method, comprises the following steps successively:
The first step, extract the acid dissolution slag behind molten ore deposit with extract, proceed in container, add reductive agent;
Second step, in the container of the described first step, add 36 ~ 108mgKH
2pO
4;
3rd step, the container of described second step is put into shaking bath, carry out the preparation of sample source;
In the first step, described extract is 0.1mol/LHCl and 2.9 ~ 3.4mol/LNaCl solution, and described reductive agent is ascorbic acid.
2. a kind of uranium isotope ratio analysis source side method according to claim 1, it is characterized in that: in the first step, described extracting liquid volume is 20 ~ 30mL, and described ascorbic acid is 0.4 ~ 1.0g.
3. a kind of uranium isotope ratio analysis source side method according to claim 2, is characterized in that: in described 3rd step, and the temperature controlling water-bath is 85 ~ 95 DEG C, and vibration velocity is 160 ~ 200r/min, amplitude 20mm, takes out after vibration 60 ~ 120min.
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| CN201310498880.5A CN103528868B (en) | 2013-10-22 | 2013-10-22 | A kind of uranium isotope ratio analysis source side method |
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| CN103528868A CN103528868A (en) | 2014-01-22 |
| CN103528868B true CN103528868B (en) | 2016-01-27 |
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| CN105203622B (en) * | 2015-10-23 | 2018-02-27 | 宁波出入境检验检疫局检验检疫技术中心 | It is a kind of to determine the isotopic ratio of lead and the method for identifying the red bayberry place of production in strawberry tree different parts sample |
Citations (4)
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|---|---|---|---|---|
| JPS5080880A (en) * | 1973-11-16 | 1975-07-01 | ||
| WO2007042746A2 (en) * | 2005-10-11 | 2007-04-19 | Gv Instruments | Ion source preparation system |
| CN102455429A (en) * | 2010-10-27 | 2012-05-16 | 核工业北京地质研究院 | Method for measuring uranium in uranium ore |
| CN103257147A (en) * | 2012-02-17 | 2013-08-21 | 中国原子能科学研究院 | 232Method for measuring U |
-
2013
- 2013-10-22 CN CN201310498880.5A patent/CN103528868B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5080880A (en) * | 1973-11-16 | 1975-07-01 | ||
| WO2007042746A2 (en) * | 2005-10-11 | 2007-04-19 | Gv Instruments | Ion source preparation system |
| CN102455429A (en) * | 2010-10-27 | 2012-05-16 | 核工业北京地质研究院 | Method for measuring uranium in uranium ore |
| CN103257147A (en) * | 2012-02-17 | 2013-08-21 | 中国原子能科学研究院 | 232Method for measuring U |
Non-Patent Citations (3)
| Title |
|---|
| Determination of uranium isotopes in environmental samples;A. Boryło;《J Radioanal Nucl Chem》;20120703(第295期);第621-631页 * |
| H.Klemenčičet al..Alpha-spectrometric thin source preparation with emphasis on homogeneity.《Applied Radiation and Isotopes》.2010,第68卷第1247-1251页. * |
| 野外现场铀矿石中铀的快速准确测定方法研究——TOPO 萃取α 计数法;黄秋红等;《岩矿测试》;20110831;第30卷(第4期);第423-429页 * |
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