SU624514A1 - Method of determining microquantity of neptunium - Google Patents
Method of determining microquantity of neptunium Download PDFInfo
- Publication number
- SU624514A1 SU624514A1 SU772496274A SU2496274A SU624514A1 SU 624514 A1 SU624514 A1 SU 624514A1 SU 772496274 A SU772496274 A SU 772496274A SU 2496274 A SU2496274 A SU 2496274A SU 624514 A1 SU624514 A1 SU 624514A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- neptunium
- determining
- microquantity
- base
- crystallophosphorus
- Prior art date
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- Spectrometry And Color Measurement (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Description
Изобретение относитс к области аналитической химии и способам оп ,ределенй долгоживущего изотопа 237 NP в различных объектах.The invention relates to the field of analytical chemistry and methods for determining the long-lived isotope 237 NP in various objects.
Известен радиометрический метод определени изотопа 237 Np, основанный на измерении его oi-излучени и спектрофотометрический метод определени изотопа 237 Np, основанный на цветной реакции с а.рсеназо МThe radiometric method for the determination of the 237 Np isotope, based on the measurement of its oi-radiation, and the spectrophotometric method for the determination of the 237 Np isotope, based on the color reaction with A. rsenazo M
К недостаткам этих методов относитс относительно невысока чувствительность определени , обусловленна ыаличием р да мешающих факторов.The disadvantages of these methods are relatively low detection sensitivity, due to the presence of a number of interfering factors.
Наиболее близким техническим решением к предлагаемому вл етс способ огфеделени микроколичеств нептуни , заключающийс в обработке основы кристаллофосфора раствором содержащим нептуний, высушивании, прока дивании полученной шихты и последующей регистрации люминесценции.The closest technical solution to the present invention is the method for the destabilization of the neptunium trace amounts, which consists in treating the base of the crystal phosphorus with a solution containing neptunium, drying it, drying the resulting mixture and then recording the luminescence.
Недостатком способа вл етс относительно невысока чувствительность определени .The disadvantage of this method is the relatively low detection sensitivity.
Цель изобретени - повышение чувствительности определени микроколичеств нептуни .The purpose of the invention is to increase the sensitivity of the determination of trace amounts of neptunium.
Это достигаетс тем, что по предлагаемому способу в качестве основы кристаллофосфора используют фторид кальци при соотношении весов вводимого раствора и основы, равном 1:(l-i).This is achieved by the fact that according to the proposed method, calcium fluoride is used as the basis of the crystal phosphorus with the ratio of the weights of the injected solution and the base equal to 1: (l-i).
Пример. В кварцевый тигель помещают 250 мг CaFg и 1 ,0 мл анализируемого раствора нептуни , перемешивают , выпаривают досуха, вновь перемешивают и прокаливают в муфелы. ной печи при в течение 1 ч. Полученный кристаллофосфор помещают в кювету и закрывают кварцевым стекломо Возбуждение люминесценции производитс УФ-светом лампы.Example. In a quartz crucible placed 250 mg of CaFg and 1, 0 ml of the analyzed solution of neptunium, stirred, evaporated to dryness, mixed again and calcined in muffles. stove for 1 hour. The obtained crystalline phosphor is placed in a cuvette and covered with quartz glass. The luminescence is excited by the UV light of a lamp.
3,62k5Tk,k3.62k5Tk, k
ДРШ-250 с фильтром УФС-2. Интенсив- лени при доверительной веро тности ность люминесценции при l,52 мкм из- 0,95 равна +10%. мер ют на люминесцетном спектрометре СДЛ-1 или другом приборе. Содер-. Определение нептуни в присутстжаиие нептуни определ ют по градуи- элементов целесообразно ровочной кривой, погрешность опреде- проводить при использовании методаDRSh-250 with the UFS-2 filter. The intensity at the confidence probability of luminescence at l, 52 microns of 0.95 is + 10%. measured on a SDL-1 luminescence spectrometer or other instrument. Soder- The determination of neptunium in the presence of neptunium is determined by the gradient of elements, it is advisable to rotate the curve, the error is determined using the method
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772496274A SU624514A1 (en) | 1977-04-13 | 1977-04-13 | Method of determining microquantity of neptunium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772496274A SU624514A1 (en) | 1977-04-13 | 1977-04-13 | Method of determining microquantity of neptunium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU624514A1 true SU624514A1 (en) | 1992-05-15 |
Family
ID=20713297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772496274A SU624514A1 (en) | 1977-04-13 | 1977-04-13 | Method of determining microquantity of neptunium |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU624514A1 (en) |
-
1977
- 1977-04-13 SU SU772496274A patent/SU624514A1/en active
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