JP2007198735A - 密封容器内の酸素量の測定方法及びこれに用いる密封容器のピアス装置 - Google Patents
密封容器内の酸素量の測定方法及びこれに用いる密封容器のピアス装置 Download PDFInfo
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- 239000001301 oxygen Substances 0.000 title claims abstract description 136
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 136
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 58
- 239000000523 sample Substances 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims description 36
- 238000005259 measurement Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 30
- 238000004891 communication Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 23
- 238000010926 purge Methods 0.000 claims description 21
- 239000011261 inert gas Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 description 15
- 239000013307 optical fiber Substances 0.000 description 9
- 230000005284 excitation Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 4
- 238000010791 quenching Methods 0.000 description 4
- 230000000171 quenching effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005429 filling process Methods 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- -1 for example Chemical compound 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 230000005408 paramagnetism Effects 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
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- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
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Abstract
【解決手段】 中空針28をその内部空間28aが中空針28の先端を除いて外部からシールされた状態で容器2に突き刺して内部空間28aを容器2内のヘッドスペースに連通させ、その中空針28を介して蛍光式酸素濃度計10のプローブ11を容器2内に挿入し、プローブ11の蛍光物質を容器2内のヘッドスペース3に位置させてヘッドスペース3の酸素濃度を測定し、これに続いて蛍光物質が容器2内の液体4に浸るようにプローブ11をさらに挿入して液体4中の溶存酸素濃度を測定する。
【選択図】 図1
Description
Pah・(Va+Vh)=Ph・Vh+Pa・Va ……(1)
の関係が成立し、(1)式にてヘッドスペース容積Vhのみが未知となるため、(1)式の関係を利用してヘッドスペースの容積を求めることができる。そして、ヘッドスペースの容積と濃度とからヘッドスペースの酸素量を求めることができる。液体の溶存酸素量に関しては、定量充填工程における液体の充填量の規定値を液体の体積とし、あるいは容器の容積からヘッドスペースの容積を差し引いた値を液体の体積として、この体積と酸素濃度とから溶存酸素量を求めることができる。中空針を介してヘッドスペースの圧力を測定し、あるいは、中空針を介してタンクと液体とを連通させているので、酸素濃度の測定に引き続いてヘッドスペースの容積を直ちに求めることができる。従って、測定効率が高く、測定に要する手間が軽減され、測定に必要な装置の構成も簡素化される。
2 容器
3 ヘッドスペース
4 容器内の液体
10 蛍光式酸素濃度計
11 プローブ
12 信号処理装置
13 光ファイバケーブル
14 センサチップ
20 ピアス装置
21 支持台
22 案内機構
23 ヘッドユニット
24 ヘッド
25 シールリング
26 弁機構
28 中空針
28a 中空針の内部空間
29 シールリング
30 圧力検出路
31 ガス導入路
32 弁体
34 アクチュエータ
40A、40B 管路
41 ガスボンベ
42A、42B 手動式開閉弁
43、44、47 開閉弁
45 圧力計
46 アキュームタンク
48 温度計
Claims (7)
- プローブの先端の蛍光物質から発せられる蛍光を検出し、その検出結果に基づいて前記蛍光物質の周囲の酸素濃度を測定する蛍光式酸素濃度計を利用して、液体が詰められた密封状態の容器内の酸素量を測定する密封容器内の酸素量測定方法であって、
中空針をその内部空間が当該中空針の先端を除いて外部から閉じられた状態で前記容器に突き刺して前記内部空間を前記容器内のヘッドスペースに連通させる工程と、
前記中空針を介して前記プローブを前記容器内に挿入し、前記蛍光物質を前記容器内のヘッドスペースに位置させて該ヘッドスペースの酸素濃度を測定する工程と、
前記蛍光物質が前記容器内の液体に浸るように前記プローブをさらに挿入して前記液体中の溶存酸素濃度を測定する工程と、
を備えたことを特徴とする密封容器内の酸素量測定方法。 - 前記中空針を介して前記ヘッドスペース内の圧力を測定する工程と、容積一定のタンクの圧力を測定する工程と、前記液体の酸素濃度の測定後に前記タンクと前記ヘッドスペースとを前記中空針を介して連通させて前記ヘッドスペースの圧力を測定する工程と、測定された各圧力と前記タンクの容積とから前記ヘッドスペースの容積を求める工程とをさらに備えたことを特徴とする請求項1に記載の酸素量測定方法。
- 蛍光式酸素濃度計のプローブが内部空間に挿通可能であり、かつ先端が密封容器に対して突き刺し可能な中空針と、
前記中空針の内部空間を当該中空針の先端を除いて外部からシールするシール手段と、 前記中空針の内部空間の圧力を検出する容器内圧力検出手段と、
前記中空針の前記内部空間と接続される容積一定のタンクと、
前記タンクと前記中空針の前記内部空間との間の連通及び連通遮断状態を切り替えるタンク弁と、
前記中空針の前記内部空間に対して連通遮断状態にあるときの前記タンクの圧力を検出するタンク内圧力検出手段と、
を備えたことを特徴とする容器のピアス装置。 - 前記中空針の前記内部空間に圧力検出路が接続され、前記圧力検出路には第1の開閉弁及び前記中空針に対して前記第1の開閉弁よりも遠方に位置する第2の開閉弁が接続され、前記タンクは前記第1及び第2の開閉弁の間にて前記圧力検出路に接続され、前記タンク弁は前記圧力検出路と前記タンクとの間に配置され、前記第1及び第2の開閉弁間には前記容器内圧力検出手段及び前記タンク内圧力検出手段として共用される圧力計が接続されていることを特徴とする請求項3に記載のピアス装置。
- 前記中空針に対して前記第2の開閉弁のさらに遠方にはガス供給源が接続されていることを特徴とする請求項4に記載のピアス装置。
- 前記中空針の前記内部空間には不活性ガスを導入するためのパージ流路がさらに接続されるとともに、前記パージ流路を開閉する弁機構をさらに備えていることを特徴とする請求項3に記載のピアス装置。
- 前記中空針の前記内部空間には圧力検出路及び前記内部空間に不活性ガスを導入するためのパージ流路が接続され、前記圧力検出路には第1の開閉弁及び前記中空針に対して前記第1の開閉弁よりも遠方に位置する第2の開閉弁が接続され、前記タンクは前記第1及び第2の開閉弁の間にて前記圧力検出路に接続され、前記タンク弁は前記圧力検出路と前記タンクとの間に配置され、前記第1及び第2の開閉弁間には前記容器内圧力検出手段及び前記タンク内圧力検出手段として共用される圧力計が接続され、前記中空針に対して前記第2の開閉弁のさらに遠方には不活性ガス供給源が接続され、前記不活性ガス供給源はさらに前記弁機構を介して前記パージ流路にも接続され、前記パージ流路を開閉する弁機構をさらに備えていることを特徴とする請求項3に記載のピアス装置。
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JP2005156084A JP4358785B2 (ja) | 2005-05-27 | 2005-05-27 | 密封容器内の酸素量の測定方法及びこれに用いる密封容器のピアス装置 |
EP06746903.1A EP1887344B1 (en) | 2005-05-27 | 2006-05-26 | Method for measuring oxygen amount in hermetically sealed container |
PCT/JP2006/310574 WO2006126683A1 (ja) | 2005-05-27 | 2006-05-26 | 密封容器内の酸素量の測定方法及びこれに用いる密封容器のピアス装置 |
US11/914,731 US7736590B2 (en) | 2005-05-27 | 2006-05-26 | Method for measuring oxygen amount in hermetically sealed container and piercing device for hermetically sealed container used therefore |
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JP2011022130A (ja) * | 2009-04-15 | 2011-02-03 | Millipore Corp | 検出装置で使用する変換器 |
JP2011053100A (ja) * | 2009-09-02 | 2011-03-17 | Toyo Aerosol Ind Co Ltd | エアゾール容器内の酸素濃度測定用治具 |
JP2014032185A (ja) * | 2012-08-06 | 2014-02-20 | Mocon Inc | フォトルミネッセンス酸素プローブタック |
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2005
- 2005-05-27 JP JP2005156084A patent/JP4358785B2/ja active Active
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2006
- 2006-05-26 EP EP06746903.1A patent/EP1887344B1/en active Active
- 2006-05-26 US US11/914,731 patent/US7736590B2/en active Active
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Cited By (5)
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JP2011022130A (ja) * | 2009-04-15 | 2011-02-03 | Millipore Corp | 検出装置で使用する変換器 |
US8852421B2 (en) | 2009-04-15 | 2014-10-07 | Emd Millipore Corporation | Converter for use with sensing devices |
US8852414B2 (en) | 2009-04-15 | 2014-10-07 | Emd Millipore Corporation | Converter for use with sensing devices |
JP2011053100A (ja) * | 2009-09-02 | 2011-03-17 | Toyo Aerosol Ind Co Ltd | エアゾール容器内の酸素濃度測定用治具 |
JP2014032185A (ja) * | 2012-08-06 | 2014-02-20 | Mocon Inc | フォトルミネッセンス酸素プローブタック |
Also Published As
Publication number | Publication date |
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EP1887344A4 (en) | 2012-12-05 |
JP4358785B2 (ja) | 2009-11-04 |
WO2006126683A1 (ja) | 2006-11-30 |
US20090084156A1 (en) | 2009-04-02 |
EP1887344B1 (en) | 2019-04-24 |
EP1887344A1 (en) | 2008-02-13 |
US7736590B2 (en) | 2010-06-15 |
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