| 摘要 |
A system and a method of the interaction and preservation of two or more reagents used in a chemical reaction is described, in which the reagents are put in contact one with another only when a wad (A) carrying a sample to be treated with said reagents breaks a partition barrier ( 4, 14 ) placed between two containers belonging to a device comprising a first upper container ( 2, 12 ) and a second lower container ( 3, 13 ) of a test tube ( 1 ), the bottom wall of the first container ( 2, 12 ) forming said partition barrier ( 4, 14 ) able to be perforated by the wad (A) carrying the sample to be treated.
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