jasmine0182lopez jasmine0182lopez
  • 04-02-2019
  • Health
contestada

difference between control sample and a standard

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annonomous20
annonomous20 annonomous20
  • 07-02-2019

 A standard contains a known amount of a substance. If u are performing an experiment you will use a sample with a known concentration to create a standard curve (a straight line). Positive and negative controls are measured against the standard curve to show the expected results if the sample u will be testing is positive or negative.

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