ɐ nˈoʊn mˈæs əvən ɔːɹɡˈænɪk kˈɑːmpaʊnd ɪz hˈiːɾᵻd wɪð fjˈuːmɪŋ nˈaɪtɹɪk ˈæsɪd ɪnðə pɹˈɛzəns ʌv sˈɪlvɚ nˈaɪtɹeɪt kəntˈeɪnd ɪn ɐ hˈɑːɹd ɡlˈæs tˈuːb nˈoʊn æz kˈɛɹɪəs tˈuːb, ɪn ɐ fˈɜːnɪs.
A known mass of an organic compound is heated with fuming nitric acid in the presence of silver nitrate contained in a hard glass tube known as carius tube, in a furnace.