| 摘要 |
PURPOSE:To obtain the titled tray eliminating operations such as work, partial injection, etc., of various drug diluting series, by filling plural wells arranged in a series with at least a single group containing an antibiotic in various concentrations in the order of concentration. CONSTITUTION:Wells 2 of a main body 1 of a tray having a means mutually connectable to protruded parts 7 are packed with at least one group of reagents containing a kind of antibiotic in a stepwise diluting series in various concentrations in the order of concentration. The means consists of an upper step part 3 which has difference in level at both the sides of a series of the plural wells 2 and engaging projected parts 5 and a lower step part 4 having engaging parts 6 having open tops.
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