JP5117091B2 - モノリス型分離カラムの製造 - Google Patents
モノリス型分離カラムの製造 Download PDFInfo
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- JP5117091B2 JP5117091B2 JP2007100711A JP2007100711A JP5117091B2 JP 5117091 B2 JP5117091 B2 JP 5117091B2 JP 2007100711 A JP2007100711 A JP 2007100711A JP 2007100711 A JP2007100711 A JP 2007100711A JP 5117091 B2 JP5117091 B2 JP 5117091B2
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- molding
- diameter
- grinding
- organic
- monolithic
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/18—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work
- B24B5/22—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centreless means for supporting, guiding, floating or rotating work for grinding cylindrical surfaces, e.g. on bolts
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- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
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- G01N30/50—Conditioning of the sorbent material or stationary liquid
- G01N30/52—Physical parameters
- G01N2030/524—Physical parameters structural properties
- G01N2030/528—Monolithic sorbent material
-
- 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
- G01N30/60—Construction of the column
- G01N30/6052—Construction of the column body
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
Description
従って、本発明の目的は、少量の生成物の混合物ですらクロマトグラフィーによって最高感度で分離することを可能にする分離カラムを提供することである。しかし、本発明のさらなる目的は、より高い感度で分離を行うことが可能な、きわめて小さい不純物ですらよりよくまたは全て検出し得る、特に小さい直径の分離カラムを提供することである。
特に、比較的小さい直径のモノリス型クロマトグラフィーカラムがしばしば至適分離効率を示さない理由は、そのモノリスの周辺領域の影響力の拡大にあると考えられる。
本発明は、モノリス型分離カラムの製造方法に関し、この方法は、以下:
a)不均一な周辺領域を有する多孔質モノリス型成形物の提供
b)外側のクラッド層を一度以上研削することによって、少なくとも20μmこの成形物の直径を縮小する工程
による。
本発明に従う方法において使用される成形物は、不均一な周辺領域を有する成形物であって、特に、モールド(いわゆる、ゲル化モールド)内で製造された成形物である。このゲル化モールドは、製造されるモノリス型成形物の大きさおよび形を決定する。本明細書中の用語「ゲル化モールド」は、使用される製造方法とは独立して使用される。すなわち、成形物が、例えば、ゾル・ゲル法、他の重縮合プロセスもしくは縮合プロセス、または、例えば、焼結のいずれによって製造されるかとは関係しない。例えば、カラム状成形物の製造のためのゲル化モールドは、代表的には、片側または両側で密封され得る管である。
モノリス型成形物の製造
第1の工程において、0.70gのポリエチレンオキシド(Aldrich製、商品番号85645−2、分子量:10,000)を、0.001mol/lの酢酸水溶液中に溶解する。5mlのテトラメトキシシランを、加水分解反応をもたらすために攪拌しながら、この溶液と混合する。数分の攪拌の後、形成した透明な反応溶液を、好適な密封可能容器へ移し、40℃の定温に保つ。約40分後に、この反応溶液は凝固する。
例1において記載されるように製造された7.2mmの直径および約14.5cmの長さを有する3個のシリカモノリスを、複数の研削工程における心無し円筒研削によって、直径4.6mmまで縮小した。
例1において記載されるように製造された7.2mmの直径および12.5cmの長さを有する3個のシリカモノリスを、心無し円筒研削機械によって直径4.6mmまで縮小する。続けて、これらのシリカモノリスを、トルエン中のN,N−ジエチルアミノジメチルオクタデシルシランの20%溶液中で17時間還流させ、ソックスレー抽出器中でn−ヘプタンを用いて洗浄する。乾燥後、このモノリスを、100%のヘキサメチルジシラザン(HMDS)中で17時間再び還流させ、再洗浄する。誘導体化されたRP−18モノリス(直径4.6mm)を、EP 1269179 A1において開示されるような既存の方法を使用して、(例2において記載されるような)溶媒および機械に対して安定なポリマーでクラッドし、アセトニトリル/水(60/40:v/v)とアントラセンを用いる逆相様式のクロマトグラフィーによって調べる。以下の分離効率およびピーク対称性を得た。
例1において記載されるように製造された4.6mmの直径および12.5cmの長さを有する3個のシリカモノリスを、心無し研削機械によって直径3mmまで縮小する。この方法において得られるモノリス型カラムを、EP 1269179 A1において記載されるような既存の方法を使用して、溶媒および機械に対して安定なポリマーでクラッドし、ヘプタン/ジオキサン(95/5;v/v)と2−ニトロアニゾールとを用いる吸着系のクロマトグラフィーによって調べた。以下の分離効率およびピーク対称性を得た。
Claims (16)
- モノリス型分離カラムの製造方法であって、
a)不均一な周辺領域を有する直径の、円筒状の多孔質モノリス型成形物であって、無機材料または有機/無機ハイブリッド材料を含み、但し有機材料から成るものではなく、被覆されていてもよい、前記成形物を提供すること、および
b)外側の層を1回または2回以上研削する心無し研削プロセスによって、該成形物の直径を少なくとも5μm縮小して、外側の不均一な層を除去した横断面全体にわたり均一な特性を有したカラムとすること
を含む、前記方法。 - 多孔質モノリス型形成物の直径が、外側の層を1回または2回以上研削することによって少なくとも20μm縮小される、請求項1に記載の方法。
- 研削された成形物が、b)に続いて、液体密閉様式でクラッドされること(工程c))をさらに含む、請求項1または2に記載の方法。
- 成形物の直径が、工程b)において段階的に合計0.1〜3mm縮小されることを特徴とする、請求項1〜3のいずれか1項に記載の方法。
- 工程a)において提供される成形物が、ゲル化モールド中で製造されたモノリス型成形物である、請求項1〜4のいずれか1項に記載の方法。
- 工程a)において提供される成形物が、ゾル・ゲル法によって製造されたモノリス型成形物である、請求項1〜5のいずれか1項に記載の方法。
- 工程a)において提供される成形物が、4mm〜8mmの直径を有するモノリス型成形物である、請求項1〜6のいずれか1項に記載の方法。
- 研削中において、研削屑が成形物の表面に接触するのを防ぐために、前記研削屑が取り除かれる、請求項1〜7のいずれか1項に記載の方法。
- 研削中において、吸引デバイスが研削屑を取り除く、請求項1〜8のいずれか1項に記載の方法。
- 1回または2回以上の外側層の研削の後に、成形物の直径が6mm未満である、請求項1〜9のいずれか1項に記載の方法。
- 1回または2回以上の外側層の研削の後に、成形物の直径が4mm未満である、請求項1〜9のいずれか1項に記載の方法。
- 1回または2回以上の外側層の研削の後に、成形物の直径が2〜6mmである、請求項1〜9のいずれか1項に記載の方法。
- 無機材料が、シリカ材料、金属酸化物、酸化アルミニウム、酸化チタン、または金属酸化物の混合物製材料であり、または有機/無機ハイブリッド材料が、有機/無機ハイブリッド構造を有する均一な三次元ネットワークを有するか、または少なくとも一層のポアを含む有機ポリマーで被覆された無機材料であるか、または有機アルコキシシランからまたは有機アルコキシシランとアルコキシシランの混合物から調製された材料である、請求項1〜12のいずれか1項に記載の方法。
- 成形物が、被覆されていてもよい、無機材料または有機/無機ハイブリッド材料からなる、請求項1〜13のいずれか1項に記載の方法。
- 成形物が、無機材料からなる、請求項1〜13のいずれか1項に記載の方法。
- 成形物が、有機/無機ハイブリッド材料からなる、請求項1〜13のいずれか1項に記載の方法。
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06007395.4 | 2006-04-07 | ||
| EP06007395A EP1843154A1 (de) | 2006-04-07 | 2006-04-07 | Herstellung von monolithischen Trennsäulen |
| EP06008141.1 | 2006-04-20 | ||
| EP06008141 | 2006-04-20 |
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| JP2007292751A JP2007292751A (ja) | 2007-11-08 |
| JP2007292751A5 JP2007292751A5 (ja) | 2011-05-26 |
| JP5117091B2 true JP5117091B2 (ja) | 2013-01-09 |
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| Country | Link |
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| JP (1) | JP5117091B2 (ja) |
| ES (1) | ES2593478T3 (ja) |
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| US8591649B2 (en) | 2007-07-25 | 2013-11-26 | Advanced Metallurgical Group Idealcast Solar Corp. | Methods for manufacturing geometric multi-crystalline cast materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8440157B2 (en) | 2007-07-20 | 2013-05-14 | Amg Idealcast Solar Corporation | Methods and apparatuses for manufacturing cast silicon from seed crystals |
| US8591649B2 (en) | 2007-07-25 | 2013-11-26 | Advanced Metallurgical Group Idealcast Solar Corp. | Methods for manufacturing geometric multi-crystalline cast materials |
Also Published As
| Publication number | Publication date |
|---|---|
| US8883011B2 (en) | 2014-11-11 |
| JP2007292751A (ja) | 2007-11-08 |
| US20090101580A1 (en) | 2009-04-23 |
| ES2593478T3 (es) | 2016-12-09 |
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