JP2016183972A - 真空紫外吸収分光システム - Google Patents
真空紫外吸収分光システム Download PDFInfo
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Abstract
Description
Claims (26)
- ガスクロマトグラフィ分析システムであって、
分析対象である少なくとも1つのガス検体を供給するように構成されたガスクロマトグラフィカラムと、
ガスクロマトグラフィカラムからの検体のフローを受け入れるように、ガスクロマトグラフィカラムと連結されたガスフローセルと、
ガスフローセル内の検出空間であって、ガスクロマトグラフィカラムから供給される検体の体積とほぼ等しいか、またはそれより大きい体積を有する検出空間と、
ガスフローセルと連結された光源と、
ガスフローセルと連結された検出器とを備え、
ガスフローセルは、検体の性質を検出するために、光源からの光を、検出空間を通って検出器へ通すように構成されている、システム。 - 光源は、広帯域VUV光源であり、
検出器は、複数波長の光を同時に測定できる分光器であり、
光源からの検出器への光経路が、1つまたはそれ以上の管理された環境内に収容されている請求項1記載のシステム。 - 光源は、VUV光源である請求項1記載のシステム。
- ガスフローセルは、環境的に封止されており、VUV光をガスフローセルに通過させるVUV光学カプリング機構を有する請求項3記載のシステム。
- ガスフローセルを通過する光は、平行化したVUV光である請求項4記載のシステム。
- 検出器は、分光器である請求項1記載のシステム。
- ガスフローセルと連結されるメイクアップガスフローをさらに備える請求項1記載のシステム。
- 光源は、VUV光源であり、
メイクアップガスフローは、VUV光領域において検出器に比較的見えないガスで構成される請求項7記載のシステム。 - システムは、ガスフローセルと連結されたコンポーネントのうち少なくとも1つが移動するのを許容することによって、ガスフローセルの熱膨張からガスフローセルの移動を許容する請求項1記載のシステム。
- ガスフローセルと連結された少なくとも1つのモジュールが、ガスフローセルの熱膨張に起因して移動するように構成される請求項9記載のシステム。
- ガス供給源と連結した光学検出システムで使用されるガスフローセルであって、
ガス入口と、
ガス出口と、
ガス入口からガス出口へのガスのフローのために管理された環境を提供するように環境的に封止されているガスフローチャネルと、
ガスフローチャネルを通る光の伝送の一部として、VUV波長またはそれ以下の光が通過する複数の光学カプリングとを備え、
平行化したVUV光を受け入れるように構成されるガスフローセル。 - ガスフローチャネルの体積は、ガスフロー内の検体のほぼ全てがガスフローチャネル内に同時に収容できるように、充分に大きい請求項11記載のガスフローセル。
- ガスフローセルを他のコンポーネントと連結するためのカプリングポイントを提供する少なくとも1つの熱絶縁カプリングをさらに備える請求項11記載のガスフローセル。
- ガス検体に関するデータを取得する方法であって、
ガスクロマトグラフィカラムからの検体の用意するステップと、
検体をガスフローセルに供給するステップと、
VUV波長またはそれ以下の光をガスフローセルに通過させるステップと、
ガスフローセルの光学出力と光学的に連結した分光器の使用により、検体によるVUV波長の光の吸収を検出するステップと、
波長および時間の関数として、検体の吸収量を示す3次元データセットを取得するステップと、
3次元データセットを分析し、検体の識別および量を決定するステップとを含む方法。 - 検体と関連したガスフローセルにメイクアップガスフローを供給するステップをさらに含む請求項14記載の方法。
- メイクアップガスフローのフローレートを変化させるステップをさらに含む請求項15記載の方法。
- 検体の吸収の検出に影響しないように、ガスクロマトグラフィカラムから供給される検体の時間分解能を増強するような方法で、メイクアップガスフローのフローレートを変化させるステップをさらに含む請求項15記載の方法。
- 検出の際、ほぼすべての検体分子がガスフローセル内に存在するのを確保するように、メイクアップガスフローのフローレートを変化させるステップをさらに含む請求項15記載の方法。
- 吸収測定を改善するように、メイクアップガスフローのフローレートを変化させるステップをさらに含む請求項15記載の方法。
- VUV光源は、広帯域VUV光源であり、
複数波長の光の吸収が同時に検出される請求項14記載の方法。 - フローチャネルが、ガスフローセル内に設けられ、
フローチャネルは、ガスフローセルの光経路にあり、
フローチャネルの体積は、ガスクロマトグラフィカラムから供給される検体の体積とほぼ等しいか、またはそれより大きい請求項14記載の方法。 - 2つ又はそれ以上の検体が、ガスクロマトグラフィカラムによって供給される請求項14記載の方法。
- 少なくとも2つの検体が同時に供給される請求項22記載の方法。
- 3次元データセットの分析は、少なくとも最適化手順を含む請求項14記載の方法。
- 最適化手順は、検体の吸収量のためのモデルを構築することと、それを検出された吸収と比較することとを含む請求項24記載の方法。
- 最適化手順は、モデル化した吸収と検出した吸収との間の差を最小化するように、入力をモデルに繰り返して調整することをさらに含む請求項25記載の方法。
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |