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1996

Analytical Chemistry

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Full-Text Articles in Cell Biology

Single Cell Analysis By Capillary Electrophoresis With Laser-Induced Native Fluorescence Detection , Sheri Joanne Lillard Jan 1996

Single Cell Analysis By Capillary Electrophoresis With Laser-Induced Native Fluorescence Detection , Sheri Joanne Lillard

Retrospective Theses and Dissertations

Individual mammalian cells were analyzed by capillary electrophoresis with laser-induced fluorescence detection (CE-LIF). This technique was chosen due to its high separation efficiencies, small sample volumes and sensitive detection. Native fluorescence was used, in which the analyte was not tagged with a fluorophore. 275-nm excitation gave attomole (amol = 10-18 mol) detection limits for the intracellular species of interest. Two projects are described in which hemoglobin (Hb) variants were determined in single red blood cells. In the third experiment, individual mast cells were degranulated on-column, and exocytosis and serotonin release were monitored temporally;First, single red blood cells, in which Hb ...