SU1476374A1 - Compound-chromatograph - Google Patents
Compound-chromatograph Download PDFInfo
- Publication number
- SU1476374A1 SU1476374A1 SU874310032A SU4310032A SU1476374A1 SU 1476374 A1 SU1476374 A1 SU 1476374A1 SU 874310032 A SU874310032 A SU 874310032A SU 4310032 A SU4310032 A SU 4310032A SU 1476374 A1 SU1476374 A1 SU 1476374A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- column
- indicator substance
- eluent
- capillary
- filled
- Prior art date
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Abstract
Изобретение относитс к аналитической химии ,в частности, к жидкостной хроматографии, и может быть использовано при анализе высококип щих веществ. Цель изобретени - повышение чувствительности и универсальности детектировани . В компаунд-хроматографе капилл р, отвод щий элюент из колонки, выполнен в виде S-образной трубки, нижн часть которой заполнена подвижной фазой из колонки, а верхн часть заполнена индикаторным веществом, к которому селективно чувствителен газовый детектор. Индикаторное вещество отделено от подвижной фазы воздушной подушкой, причем высоту столба индикаторного вещества выбирают из услови , чтобы в диапазоне изменени концентраций анализируемого вещества на выходе колонки она была ниже места соединени капилл ра с газовой коммуникацией. 1 ил.The invention relates to analytical chemistry, in particular, to liquid chromatography, and can be used in the analysis of high-boiling substances. The purpose of the invention is to increase the sensitivity and versatility of detection. In the compound chromatograph, the capillary, which removes the eluent from the column, is made in the form of an S-shaped tube, the lower part of which is filled with the mobile phase from the column, and the upper part is filled with the indicator substance, to which the gas detector is selectively sensitive. The indicator substance is separated from the mobile phase by an air cushion, and the height of the column of indicator substance is chosen so that, in the range of concentration of the analyte at the outlet of the column, it is lower than the junction of the capillary with gas communication. 1 il.
Description
Изобретение относитс к аналитической химии, в частности к жидкостной хроматографии, и можег быть использовано при анализе высококип щих веществ.The invention relates to analytical chemistry, in particular to liquid chromatography, and can be used in the analysis of high-boiling substances.
Цель изобретени - повышение чувствительности и универсальности детектировани .The purpose of the invention is to increase the sensitivity and versatility of detection.
На чертеже изображен компаунд- хроматограф.The drawing shows the compound chromatograph.
Устройство включает блок 1 подачи элюента, жидкостную колонку 2, сообщающиес капилл ры 3 и 4, в S-образ- ном капилл ре находитс подвижна фаза, отделенна воздушной подушкой 5 от вещества 6, коммуникацию 7 дл The device includes an eluent supply unit 1, a liquid column 2, communicating capillaries 3 and 4, in the S-shaped capillary there is a mobile phase separated by an air cushion 5 from substance 6, communication 7 for
ввода инертного газа, селективный детектор 8 и сопротивление 9.inert gas injection, selective detector 8 and resistance 9.
Устройство работает следующим образом .The device works as follows.
Элюент из блока 1 подачи растворител подаетс в жидкостную колонку 2, выход которой выполнен в виде двух сообщающихс капилл ров 3 и 4, На выходе капилл ра 3 устанавливают отличное от нул гидродинамическое сопротивление 9. В результате в капилл ре 4 устанавливаетс определенный уровень элюента, высота которого соответствует статическому давлению на входе капилл ра 3. Это давление через воздушную подушку 5 передаетс The eluent from the solvent supply unit 1 is supplied to the liquid column 2, the output of which is made in the form of two communicating capillaries 3 and 4. A hydrodynamic resistance other than zero is set at the output of the capillary 3. As a result, a certain level of eluent which corresponds to the static inlet pressure of the capillary 3. This pressure is transmitted through the air cushion 5
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Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874310032A SU1476374A1 (en) | 1987-09-28 | 1987-09-28 | Compound-chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU874310032A SU1476374A1 (en) | 1987-09-28 | 1987-09-28 | Compound-chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1476374A1 true SU1476374A1 (en) | 1989-04-30 |
Family
ID=21329257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU874310032A SU1476374A1 (en) | 1987-09-28 | 1987-09-28 | Compound-chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1476374A1 (en) |
-
1987
- 1987-09-28 SU SU874310032A patent/SU1476374A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Чижков В.П. и др. Физическа хими , 1968, № 42, с. 31-38. Авторское свидетельство СССР № 81 9716, кл. G 01 N 30/08, 1981 . * |
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