SU321696A1 - Graphite Cuvetes - Google Patents
Graphite CuvetesInfo
- Publication number
- SU321696A1 SU321696A1 SU1438059A SU1438059A SU321696A1 SU 321696 A1 SU321696 A1 SU 321696A1 SU 1438059 A SU1438059 A SU 1438059A SU 1438059 A SU1438059 A SU 1438059A SU 321696 A1 SU321696 A1 SU 321696A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cuvette
- graphite
- cuvetes
- hole
- center
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title description 3
- 229910002804 graphite Inorganic materials 0.000 title description 3
- 239000010439 graphite Substances 0.000 title description 3
- 238000000889 atomisation Methods 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Description
Изобретение относитс к приборам, примен емым при определении микроколичеств различных элементов при помощи атомно-абсорбциоиного спектрального анализа.The invention relates to devices used in the determination of micro-quantities of various elements using atomic absorption spectral analysis.
Известна графитова кювета дл атомизацин определ емого элемента в виде цилиндра с цилиндрическим отверстием. Дл повышени плотности паров изучаемого вещества отверстие следует делать возможно меньшего диаметра, что приводит к снижению количества света, иро.ход щего через образец, и к снижению полезного сигнала.A known graphite cuvette for an atomization of a detectable element in the form of a cylinder with a cylindrical bore. To increase the vapor density of the studied substance, the hole should be made as small as possible, which leads to a decrease in the amount of light transmitted through the sample, and to a decrease in the useful signal.
Предлагаема кювета отличаетс тем, что отверстие выполнено в виде двух соосных усеченных конусов, обращенных меньшими основани ми к центру кюветы, а большими - к ее торцам. Этим достигаетс увеличение нлотности паров изучаемого вещества без уменьшени светового потока, поскольку внутренн полость описываемой кюветы сделана по ходу луча, а диаметр отверсти в центре кюветы может быть очень малым.The proposed cuvette is characterized in that the opening is made in the form of two coaxial truncated cones, with their smaller bases facing the center of the cuvette, and the larger ones facing its ends. This achieves an increase in the vapor density of the studied substance without reducing the luminous flux, since the internal cavity of the described cuvette is made along the beam, and the diameter of the hole in the center of the cuvette can be very small.
На фиг. 1 показана нзвестна кювета; на фиг. 2 - предлагаема кювета.FIG. 1 shows a known cuvette; in fig. 2 - the proposed cuvette.
Иа чертежах даны следующие обозначени : источник света /, линза 2, корпус 3 кюветы , диаметр d отверсти в центре кюветы, диаметр D отверсти у торца кюветы.In the drawings, the following designations are given: light source /, lens 2, body 3 of the cell, diameter d of the hole in the center of the cell, diameter D of the hole at the end of the cuvette.
Точность определени приведена в табл1ще.The accuracy of the determination is given in table 1.
Точность определени , гAccuracy, g
Предмет изобретени Subject invention
Графитова кювета дл атомизации паров в атомно-абсорбцнонном спектральном анализе в виде цилиндра с отверстием дл прохождени света, отличающа с тем, что, с целью повышенн чувствительностн анализа, отверстие выполнено в виде двух соосных усеченных конусов, обращенных меньшнмн основани ми к центру кюветы, а большими - к ее торцам.A graphite cuvette for atomization of vapors in an atomic-absorptive spectral analysis in the form of a cylinder with a hole for the passage of light, characterized in that, in order to increase the sensitivity of the analysis, the hole is made in the form of two coaxially truncated cones that have less base to center the cuvette large - to its ends.
:f: f
тШ.tsh.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU321696A1 true SU321696A1 (en) |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708478A (en) * | 1983-08-03 | 1987-11-24 | U.S. Philips Corporation | Tube cell for atomic absorption spectrophotometry |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708478A (en) * | 1983-08-03 | 1987-11-24 | U.S. Philips Corporation | Tube cell for atomic absorption spectrophotometry |
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