公开(公告)号：US5437179A

公开(公告)日：1995-08-01

申请号：US88677

申请日：1993-07-07

Applicant: Patrick M. Wiegand ,  John F. Fisher ,  John R. Parris ,  Elizabeth S. Ballard ,  Courtland P. Sears, III ,  George W. Schwarz, Jr. ,  Cloid R. Smith, III

Inventor： Patrick M. Wiegand ,  John F. Fisher ,  John R. Parris ,  Elizabeth S. Ballard ,  Courtland P. Sears, III ,  George W. Schwarz, Jr. ,  Cloid R. Smith, III

IPC: G01N30/54 ,  G01N30/02 ,  G01N30/30 ,  G01N30/66 ,  G01N30/68 ,  G01N30/88 ,  G01N30/20

CPC classification number: G01N30/68 ,  G01N30/30 ,  G01N2030/025 ,  G01N2030/3007 ,  G01N2030/3076 ,  G01N2030/8886

Abstract: The present invention is directed to methods and apparatus for conducting gas chromatography more rapidly than previously disclosed. By means of the present invention the time necessary to conduct a gas chromatographic analysis can be reduced by more than 50%. The methods and apparatus employed reduce system dead volumes to prevent band broadening and mixing of the sample components as the gas sample is analyzed. The present invention also relates to the apparatus described above as applied to controlling chemical, refining, and other processes.

Abstract translation: 本发明涉及比以前公开的更快速地进行气相色谱的方法和装置。 通过本发明，进行气相色谱分析所需的时间可以减少50％以上。 所采用的方法和装置降低了系统死体积，以便在分析气体样品时防止样品组分的带宽扩大和混合。 本发明还涉及上述用于控制化学，精炼和其它方法的装置。

公开(公告)号：US5589630A

公开(公告)日：1996-12-31

申请号：US429185

申请日：1995-04-26

Applicant: Patrick M. Wiegand ,  John F. Fisher ,  John R. Parrish ,  Elizabeth S. Ballard ,  Courtland P. Sears, III ,  George W. Schwarz, Jr. ,  Cloid R. Smith, III

Inventor： Patrick M. Wiegand ,  John F. Fisher ,  John R. Parrish ,  Elizabeth S. Ballard ,  Courtland P. Sears, III ,  George W. Schwarz, Jr. ,  Cloid R. Smith, III

IPC: G01N30/54 ,  G01N30/02 ,  G01N30/30 ,  G01N30/66 ,  G01N30/68 ,  G01N30/88

CPC classification number: G01N30/68 ,  G01N30/30 ,  G01N2030/025 ,  G01N2030/3007 ,  G01N2030/3076 ,  G01N2030/8886

Abstract: The present invention is directed to methods and apparatus for conducting gas chromatography more rapidly than previously disclosed. By means of the present invention the time necessary to conduct a gas chromatographic analysis can be reduced by more than 50%. The methods and apparatus employed reduce system dead volumes to prevent band broadening and mixing of the sample components as the gas sample is analyzed. The present invention also relates to the apparatus described above as applied to controlling chemical, refining, and other processes.