Capillary electrophoretis system, sample analyzer and liquid sample cassette for electrophoretic separation

A capillary electrophoresis system, comprising:

• a wafer-shaped part having said passages filled with a buffer solution for introducing sample solutions together;
• a body having a configuration suitable to removably hold and to move said wafer-shaped part attached in a relative manner;
• and
• means for moving the wafer-shaped part relative to said body to form an electroosmotic flow sequentially in said passages;
• wherein said body includes:
• first and second electrodes for applying a voltage between both ends of passages of said wafer-shaped part to separate and take out said sample solutions;
• and
• first and second buffer reservoirs conductive to said passages of said wafer-shaped part at a specific position for filling buffer solution around said first and second electrodes.

A sample analyzing system comprising:

• a capillary electrophoresis system having a wafer-shaped part having passages for introducing a sample solution, a body having a configuration suitable to removably hold and to move said wafer-shaped part attached in a relative manner and means for moving the wafer-shaped part relative to said body to form an electroosmotic flow sequentially in said passages, in which said body includes first and second electrodes for applying a voltage across both ends of passages of said wafer-shaped part to separate and take out said sample solution, and first and second buffer reservoirs conductive to said passages of said wafer-shaped part at a specific position for filling buffer solution around said first and second electrodes;
• an ion source connected to one of said buffer reservoirs of said capillary electrophoresis system for ionizing the solution spilled from said wafer-shaped part into gaseous ions;
• and
• a mass spectrometer for performing mass analysis of the ions emitted from said ion source.

A sample analyzing system comprising:

• a capillary electrophoresis system having a wafer-shaped part having passages for introducing a sample solution, a body having a configuration suitable to removably hold and to move said wafer-shaped part attached in a relative manner and means for moving the wafer-shaped part relative to said body to form an electroosmotic flow sequentially in said passages, in which said body includes first and second electrodes for applying a voltage across both ends of passages of said wafer-shaped part to separate and take out said sample solution, and first and second buffer reservoirs conductive to said passages of said wafer-shaped part at a specific position for filling buffer solution around said first and second electrodes;
• an ion source connected to one of said buffer reservoirs of said capillary electrophoresis system for ionizing the sample solution isolated by electrophoresis from said wafer-shaped part into gaseous ions;
• and
• a mass spectrometer for performing mass analysis of the ions emitted from said ion source.

A sample analyzing system comprising:

• a capillary electrophoresis system having a wafer-shaped part having passages filled with buffer solution for introducing a sample solution, a body having a configuration suitable to removably hold and to move said wafer-shaped part attached in a relative manner and means for moving the wafer-shaped part relative to said body to form an electroosmotic flow sequentially in said passages, in which said body includes first and second electrodes for applying a voltage across both ends of passages of said wafer-shaped part to separate and take out said sample solution, and first and second buffer reservoirs conductive to said passages of said wafer-shaped part at a specific position for filling buffer solution around said first and second electrodes;
• an ion source connected to one of said buffer reservoirs of said capillary electrophoresis system for ionizing the solution spilled from said wafer-shaped part into gaseous ions;
• and
• a mass spectrometer for performing mass analysis of the ions emitted from said ion source.