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文献和实验A protocol for cleaning and reusing the large 25 x 25 cm plates
We regularly reuse our large 25x25 cm plating trays; initially, however, we were plagued by gross microbiological contamination when reusing the trays. Various combinations of cleaning with a laboratory dishwasher, ethyl alcohol, and UV
, a pair of frogs were mated (see Grainger Lab X. tropicalis Mating Protocol for details) and the resultant tadpoles were used in the following karyotyping protocol. 2. Place 10 Nieuwkoop & Faber Stage 26-34 tadpoles into a dish of deionized, distilled
1.0。7. 将“校正-测量”开关置于“测量”位,表针指示数乘以“量程”倍率即为溶液电导率。 例:测纯水时,“量程”置于×0.1(红)档,指示值为0.56,则被测电导率为0.56×0.1=0.056μS/cm(17.85MΩ.cm);“量程”置x102档,指示值为0.5,则被测值为0.5×102=50μS/cm。8.“量程”置黑(B)点档,则读数为表面上行刻度0—1。“量程”置红(R)档,则读数为下行刻度。9.当溶液电导率大于104μS/cm(电阻少于100Ω),即高电导测量时,请用DJS—10型电极(需要时另购
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