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Division 9.2 Calculate the % (m/m) of dichloromethane and 1,1,1-trichloroethane present in the sample to be analyzed

United Kingdom

Original text. Later amendments are not shown.

Let:

ma

  • the mass (in grams) of chloroform introduced,

    • Ms

  • the mass (in grams) of the sample to be analyzed,

    • Aa

  • the area of the chloroform peak,

    • A1

  • the area of the d ichloromethane peak,

    • A2

  • the area of the 1 1,1-trichloroethane peak,

    • then:

    % (m/m) CH 2 Cl 2 = m a × A 1 × k 1 × 100 A a × M s
    % (n/m) CH 3 CCl 3 = m a × A 2 × k 2 × 100 A a × M s