作者: Walter Meltzer
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摘要: An improved automated pipetting system for programmingly predetermined quantities of liquid between preselected groups test tubes, vials or wells arranged on a horizontal table. A substantially rigid overhead frame mounted over the table which tube arrays like are arranged. pair parallel X-axis guide shafts in frame. helical screws rotatably to shafts. Each screw is driven by stepper motor coaxially connected thereto. roller sections movably and support Z-axis probe mechanism via Y-axis screw. drivingly moving along The also at least one corresponding Z-axis. may include plurality probes, each motor. movement motors controlled computer accordance with program.