Sentence Examples


  • These are washed with ammonium chloride until the filtrate is colourless, ignited, fused with caustic potash and nitre, the melt dissolved in water and nitric acid added to the solution until the colour of potassium ruthenate disappears.
  • Ammonium carbonate is added to the filtrate; this precipitates calcium, strontium and barium.
  • Hot air is blown into the filtrate, which contains ferrous or calcium chlorides, to expel the excess of sulphur dioxide, and the liquid can then be used again.
  • The passage of the fluid is readily effected by negative pressure produced by an ordinary water exhaust-pump.The P Y Y effects of the filtrate are then tested by the methods used in pharmacology.
  • In the case of the tetanus and diphtheria bacilli, the production of soluble toxins can be readily demonstrated by filtering a culture in bouillon germ-free by means of a porcelain filter, and then injecting some of the filtrate into an animal.
 

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