SU802849A1 - Cuvette for refractometric detecting in liquid chromatography - Google Patents
Cuvette for refractometric detecting in liquid chromatography Download PDFInfo
- Publication number
- SU802849A1 SU802849A1 SU782637738A SU2637738A SU802849A1 SU 802849 A1 SU802849 A1 SU 802849A1 SU 782637738 A SU782637738 A SU 782637738A SU 2637738 A SU2637738 A SU 2637738A SU 802849 A1 SU802849 A1 SU 802849A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cuvette
- liquid chromatography
- refractometric
- detecting
- prisms
- Prior art date
Links
Classifications
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
- G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Description
II
Изобретение относитс к кюветам рефрактометрических детектс ов в жидкостной хроматографии, работающим на принципе Френел при влении неполного внутреннего отражени .The invention relates to refractometric detection cuvettes in liquid chromatography, operating on the Fresnel principle in the development of incomplete internal reflection.
Известна кювета, содержаща две призмы и образованна зазором по гипотенузам призм . Плоскость кюветы в этом устройстве расположена под углом, близким к критическому, относительно пучка света, падающего на катет.A well-known cuvette containing two prisms and formed by a gap in the hypotenuse of prisms. The plane of the cuvette in this device is located at an angle close to the critical, relative to the beam of light falling on the leg.
Однако в этой кювете при смене эшоента необходимо либо корректировать чувствительность измерительной системы дл сохранени градуировки, либо замен ть призмы, чтобы угол между плоскостью кюветы и пучком света оставалс с тем же отклонением от критического.However, in this cuvette, when the echoent is changed, it is necessary either to adjust the sensitivity of the measuring system to maintain graduation, or to replace the prisms so that the angle between the plane of the cuvette and the light beam remains with the same deviation from the critical one.
Известна также кювета дл рефрактометрического детектировани в жидкостной хроматографии, образованна двум призмами: стекл нной и металлической со световьшод шимэлементом L2J. Преломленный луч, прошедший границу разделаAlso known is a cuvette for refractometric detection in liquid chromatography, formed by two prisms: glass and metal with a light beam with a L2J dial element. Refracted ray past the interface
|Стекло - жидкость под углом, близким к критичесжому, реверсируетс при помошв диффузно отражающей поверхности, образованной на плоскости металлической призмы , обращенной к стекл нной призме. Эго устройство имеет малый объем кюветы (1О мкл) и позвол ет сокранить градуировку при смене элюента за счет изменени угла падени пучка света на переднюю грань призмЕЛ.Glass is a liquid at an angle close to critical, reversed by a diffusely reflecting surface formed on the plane of a metal prism facing the glass prism. The device has a small cuvette volume (1O µl) and allows you to cut down the calibration when changing the eluent by changing the angle of incidence of the light beam on the front face of the prism.
Недостатками данного устройства в а ютс технологическа сложность изготовлени и поддержани качества диффузпо ог- ражаюшей поверхности, так как р ске, сб разующие эту асюерхность, со временем The disadvantages of this device are the technological complexity of fabricating and maintaining the quality of the diffuse against the enclosing surface, since the red that comprehend this surface, with time
$ забиваютс осадком, в результате чего полностью пропадает чувствительность восстановление диффузности практически невозможно.$ is clogged with sediment, as a result of which the sensitivity is completely lost; the restoration of diffusivity is almost impossible.
Цель изобретени - повышение изготовлени и надежности работы кючеты.The purpose of the invention is to improve the manufacture and reliability of the operation.
Поставленна цель достигаетс тем, |что световьтод щий элемент выполнен в виде двух цилиндрических каналов, оси коThe goal is achieved by the fact that the light-guiding element is made in the form of two cylindrical channels;
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782637738A SU802849A1 (en) | 1978-07-05 | 1978-07-05 | Cuvette for refractometric detecting in liquid chromatography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU782637738A SU802849A1 (en) | 1978-07-05 | 1978-07-05 | Cuvette for refractometric detecting in liquid chromatography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU802849A1 true SU802849A1 (en) | 1981-02-08 |
Family
ID=20774047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU782637738A SU802849A1 (en) | 1978-07-05 | 1978-07-05 | Cuvette for refractometric detecting in liquid chromatography |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU802849A1 (en) |
-
1978
- 1978-07-05 SU SU782637738A patent/SU802849A1/en active
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