GB1104459A - Improvements in or relating to apparatus for use in gas-liquid chromatography - Google Patents
Improvements in or relating to apparatus for use in gas-liquid chromatographyInfo
- Publication number
- GB1104459A GB1104459A GB4148565A GB4148565A GB1104459A GB 1104459 A GB1104459 A GB 1104459A GB 4148565 A GB4148565 A GB 4148565A GB 4148565 A GB4148565 A GB 4148565A GB 1104459 A GB1104459 A GB 1104459A
- Authority
- GB
- United Kingdom
- Prior art keywords
- comparator
- liquid chromatography
- peak
- gas liquid
- reference signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/86—Signal analysis
- G01N30/8603—Signal analysis with integration or differentiation
Landscapes
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Algebra (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
1,104,459. Apparatus for gas liquid. chromotography. HONEYWELL CONTROLS Ltd. 16 Nov., 1966 [30 Sept., 1965], No.4.1485/65. Heading G4H. Apparatus for use in gas liquid chromatography includes means for integrating an electrical signal having a main peak and a subsidiary peak (Fig. 2) and means for generating timing signals when the electrical signal passes X through pre-set magnitudes X, and Y = -, to 2 cause read-out of the integrator means. In the embodiment described the timing signals are generated by comparing the electrical input signal on terminal 1 (Fig. 1) with a reference signal X from an adjustable tapping 6 on a resistor 5 in a first comparator 4 and with a X reference signal - from the centre tapping 9 2 of a potentiometer 8 in a second comparator 3. The output from the comparators control pulse generators 10, 12 so that timing pulses are applied on leads 14, 15 to the integrator circuit which is as described in Specification 1,007,114 to cause read-out when the input drops through the pre-set values. Consequently values representing the areas A, B, C, D (Fig. 2) are read out to a printer, the area of the subsidiary peak being represented by C + D - B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4148565A GB1104459A (en) | 1965-09-30 | 1965-09-30 | Improvements in or relating to apparatus for use in gas-liquid chromatography |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4148565A GB1104459A (en) | 1965-09-30 | 1965-09-30 | Improvements in or relating to apparatus for use in gas-liquid chromatography |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1104459A true GB1104459A (en) | 1968-02-28 |
Family
ID=10419911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4148565A Expired GB1104459A (en) | 1965-09-30 | 1965-09-30 | Improvements in or relating to apparatus for use in gas-liquid chromatography |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1104459A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3468156A (en) * | 1966-11-17 | 1969-09-23 | Phillips Petroleum Co | Method and apparatus for chromatographic analysis of a binary mixture without peak separation |
-
1965
- 1965-09-30 GB GB4148565A patent/GB1104459A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3468156A (en) * | 1966-11-17 | 1969-09-23 | Phillips Petroleum Co | Method and apparatus for chromatographic analysis of a binary mixture without peak separation |
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