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11. 发明专利

JP2002022720A ORGANIC COMPOUND ANALYSIS METHOD 失效
公开(公告)号：JP2002022720A
公开(公告)日：2002-01-23
申请号：JP2000207941
申请日：2000-07-10
申请人： EBARA CORP
发明人： MATSUMURA SATORU , FUTAMURA OSAMU , TAKEDA KAZUISA
IPC分类号： G01N33/00 , C07B61/00 , C07C1/30 , C07C15/12 , C07C15/14 , G01N30/06 , G01N30/80 , G01N30/84 , G01N30/88
摘要： PROBLEM TO BE SOLVED: To provide an easy analysis method quickly finishing analysis by mean of a simple technique in content analysis of an objective specific organic compound, especially a method and a system for easy, rapid, and sensitive measurement of a content of a halogenated organic compound included in an environment by a very small amount, and to provide a sample preparation method and a sample pretreatment method for the analysis. SOLUTION: This analysis method, by which a content of a specific organic compound in a solution including a plurality of compounds is analyzed through chromatography, includes the following processes at least: a process for separating and collecting a fraction included within a chromatograph retention time including the peak of the specific organic compound area from the solution through chromatography, a process for chemically changing the specific organic compound in the collected sample and shifting its peak to an area different from the retention time area, and a process for analyzing the specific organic compound on the basis of the shifted peak.

12. 发明专利

JPH1014239A POWER SUPPLY VOLTAGE DIVISION RECTIFIER CIRCUIT 失效
公开(公告)号：JPH1014239A
公开(公告)日：1998-01-16
申请号：JP18147296
申请日：1996-06-21
申请人： EBARA CORP
发明人： MATSUMURA SATORU , HOTTA OSAMU
IPC分类号： H02J1/00 , H02M3/07 , H02M7/10 , H02M7/12
摘要： PROBLEM TO BE SOLVED: To obtain a low DC voltage from an AC commercial power supply without requiring any transformer by combining diodes and capacitors, connecting the capacitors in series during one half cycle of AC voltage, in order to charge the capacitors, connecting the capacitors in parallel during the other half cycle of AC voltage in order to take out the charged voltage and then dividing and rectifying the AC voltage. SOLUTION: An AC commercial power supply is connected across a voltage division charging circuit (unit series circuit) and capacitors C1 -C5 are charged through respective diodes D1 , D4 , D7 , D10 , D13 during the positive half cycle of an AC voltage. A diode parallel correction circuit takes out the charged voltage of each capacitor C1 -C5 in the unit series circuit during the negative half cycle of the AC voltage. The diode parallel correction circuit comprises diodes D3 , D6 , D9 , D12 for connecting the negative potential side of the capacitors C1 -C5 in the unit series circuit with a COM line, during the negative half cycle of the AC voltage, and diodes D2 , D5 , D8 , D11 , D14 for connecting the positive potential side thereof with a voltage-take out section A.

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