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Division 7.2 From the mass ratios obtained in this way calculate the alpha-monoglyceryl 4-aminobenzoate and ethyl 4-aminobenzoate contents, as mass percentages (% m/m) with the formulae:

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Original text. Later amendments are not shown.

R p % (m/m) alpha-monoglyceryl 4-aminobenzoate = RP1 × q 6 p R p % (m/m) ethyl 4-aminobenzoate = RP2 × q 6 p
q

  • quantity of ethyl 4-hydroxybenzoate (internal standard) weighed, in milligrams, in 4.12,

    • p

  • quantity of sample, in grams, weighed in 6.1.1.