WO1995007459A1 - Codierter träger für die dünnschichtchromatographie - Google Patents
Codierter träger für die dünnschichtchromatographie Download PDFInfo
- Publication number
- WO1995007459A1 WO1995007459A1 PCT/EP1994/002871 EP9402871W WO9507459A1 WO 1995007459 A1 WO1995007459 A1 WO 1995007459A1 EP 9402871 W EP9402871 W EP 9402871W WO 9507459 A1 WO9507459 A1 WO 9507459A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- layer chromatography
- thin
- code
- support material
- laser
- 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.)
- Ceased
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
- G01N30/90—Plate chromatography, e.g. thin layer or paper chromatography
- G01N30/92—Construction of the plate
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K1/00—Methods or arrangements for marking the record carrier in digital fashion
- G06K1/12—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching
- G06K1/126—Methods or arrangements for marking the record carrier in digital fashion otherwise than by punching by photographic or thermographic registration
Definitions
- the invention relates to a coded carrier for thin layer chromatography ("DC”) and a method for its production.
- DC thin layer chromatography
- Such a marking should have the highest possible density of information and should be able to be applied quickly to or into the respective layer. Above all, however, it should be resistant to all organic and inorganic solvents, bases and acids commonly used in TLC (not only in liquid form, but also in the case of gaseous effects due to vapor deposition) and thus neither disturb the chromatographic development nor the result of the separation or influenced. In addition, the marking should not only be legible in daylight, but also when exposed to UV radiation (e.g. 254 and 366 nm).
- the previously usual markings for example by sticking labels or by scratching into the carrier layer, only partially or not at all meet these requirements and are also cumbersome. Due to the manual transmission of data, transmission errors can make the entries unusable. Labels can peel off and get lost.
- the object of the invention was to provide labeled (coded) DC carriers which do not have the stated disadvantages or only have them to a lesser extent.
- Irradiation of the carrier can be achieved with laser light, using an appropriate template (e.g. numbers and / or letters or lines for bar coding) or controlling the laser via a computer.
- an appropriate template e.g. numbers and / or letters or lines for bar coding
- the invention accordingly relates to a carrier for the DC, characterized by a coding applied with the aid of laser light, and to a method for its production, characterized in that a conventional carrier for the DC is irradiated with laser light.
- Glass carriers and foils e.g. aluminum or plastic foils, e.g. those made of polyterephthalate
- Sorberis Glass carriers and foils that are coated with Sorberis and contain a binder and optionally a fluorescence indicator and / or other additives are primarily suitable as supports.
- Suitable as sorbent are all stationary phases usually used in DC, preferably modified or unmodified silica gels, furthermore e.g. Cellulose, polyamides, diatomaceous earth, aluminum oxides.
- Polymeric organic substances are preferably used as binders, e.g. Polyacrylic acid or polymethacrylic acid and their amides.
- a pulsed or unpulsed CO2 laser (wavelength 1.06 ⁇ m) or a Yag laser (solid-state laser, wavelength 10.6 ⁇ m) is preferably used as the laser source.
- the exposure time is 5-50 nanoseconds per character.
- the coding obtained can contain any data, e.g. lettering from the manufacturer, article number, batch number, date of manufacture, individual, unique numbering (consecutive numbers).
- the coding is preferably carried out by irradiating the sorbent layer which contains a binder.
- a laser it is also possible to mark the uncoated back of a carrier glass plate or a coated plastic film.
- fine thermal stress cracks occur during the irradiation, which cause the glass surface to become cloudy in the wavelength range of visible light.
- a ready-made HPTLC plate (E. Merck Kieselgel 60 F254, Item No. 5642, 100 x 200 mm) is used with a pulsed CO 2 laser, wavelength
- HPTLC prefabricated plate (E. Merck Kieselgel 60, Art. No. 5641, 100 x 200 mm) is labeled with an unpulsed CO 2 laser (wavelength 10.6 ⁇ m, power consumption 10 watts, feed speed 100 mm / sec).
- the laser is controlled by a computer.
Landscapes
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Laser Beam Processing (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7508430A JPH09503292A (ja) | 1993-09-09 | 1994-08-30 | コードをつけた薄層クロマトグラフィー担体 |
| EP94926223A EP0717843A1 (de) | 1993-09-09 | 1994-08-30 | Codierter träger für die dünnschichtchromatographie |
| US08/612,882 US5773576A (en) | 1993-09-09 | 1994-08-30 | Coded thin layer chromatography support |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4330564.4 | 1993-09-09 | ||
| DE4330564A DE4330564B4 (de) | 1993-09-09 | 1993-09-09 | Codierter Träger für die Dünnschichtchromatographie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995007459A1 true WO1995007459A1 (de) | 1995-03-16 |
Family
ID=6497274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1994/002871 Ceased WO1995007459A1 (de) | 1993-09-09 | 1994-08-30 | Codierter träger für die dünnschichtchromatographie |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5773576A (de) |
| EP (1) | EP0717843A1 (de) |
| JP (1) | JPH09503292A (de) |
| CN (1) | CN1095544C (de) |
| DE (1) | DE4330564B4 (de) |
| WO (1) | WO1995007459A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100481650B1 (ko) * | 1996-09-05 | 2005-08-23 | 삼성전자주식회사 | 굴곡형액정표시장치의백라이트 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013105572A1 (ja) * | 2012-01-11 | 2013-07-18 | 株式会社ダイセル | クロマトグラフ媒体 |
| JP6118271B2 (ja) | 2012-02-03 | 2017-04-19 | 株式会社ダイセル | クロマトグラフ媒体 |
| CN110850020B (zh) * | 2019-11-11 | 2022-03-29 | 中国药科大学 | 一种基于人工智能的中药识别方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4126554A (en) * | 1977-09-02 | 1978-11-21 | Analtech, Inc. | Selectively marked thin-layer chromatographic plate |
| GB2059354A (en) * | 1979-09-24 | 1981-04-23 | Rca Corp | Method of making a machine-readable marking in a workpiece |
| GB2207873A (en) * | 1987-05-18 | 1989-02-15 | Sanyo Electric Co | Ultrafine tube and method for its production |
| EP0343651A1 (de) * | 1988-05-27 | 1989-11-29 | "LADEC" Co. | Verfahren und Vorrichtung zur dekorativen Bearbeitung von Glas und Keramik |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4960691A (en) * | 1986-09-29 | 1990-10-02 | Abbott Laboratories | Chromatographic test strip for determining ligands or receptors |
| US5439826A (en) * | 1988-12-02 | 1995-08-08 | Bio-Tek Instruments, Inc. | Method of distinguishing among strips for different assays in an automated instrument |
-
1993
- 1993-09-09 DE DE4330564A patent/DE4330564B4/de not_active Expired - Fee Related
-
1994
- 1994-08-30 WO PCT/EP1994/002871 patent/WO1995007459A1/de not_active Ceased
- 1994-08-30 CN CN94193301.6A patent/CN1095544C/zh not_active Expired - Fee Related
- 1994-08-30 US US08/612,882 patent/US5773576A/en not_active Expired - Lifetime
- 1994-08-30 JP JP7508430A patent/JPH09503292A/ja active Pending
- 1994-08-30 EP EP94926223A patent/EP0717843A1/de not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4126554A (en) * | 1977-09-02 | 1978-11-21 | Analtech, Inc. | Selectively marked thin-layer chromatographic plate |
| GB2059354A (en) * | 1979-09-24 | 1981-04-23 | Rca Corp | Method of making a machine-readable marking in a workpiece |
| GB2207873A (en) * | 1987-05-18 | 1989-02-15 | Sanyo Electric Co | Ultrafine tube and method for its production |
| EP0343651A1 (de) * | 1988-05-27 | 1989-11-29 | "LADEC" Co. | Verfahren und Vorrichtung zur dekorativen Bearbeitung von Glas und Keramik |
Non-Patent Citations (1)
| Title |
|---|
| PFEUFER ET AL.: "laserbeschriften von kunststoffformteilen", KUNSTSTOFFE, vol. 79, no. 6, June 1989 (1989-06-01), MUNCHEN DE, pages L43 - L46, XP000173023 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100481650B1 (ko) * | 1996-09-05 | 2005-08-23 | 삼성전자주식회사 | 굴곡형액정표시장치의백라이트 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4330564A1 (de) | 1995-03-16 |
| CN1095544C (zh) | 2002-12-04 |
| CN1130424A (zh) | 1996-09-04 |
| DE4330564B4 (de) | 2005-03-17 |
| JPH09503292A (ja) | 1997-03-31 |
| EP0717843A1 (de) | 1996-06-26 |
| US5773576A (en) | 1998-06-30 |
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|---|---|---|---|
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| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
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