jˈuːzɪŋ ɐn ɛmpˈɪɹɪkəl ɹᵻlˈeɪʃən bᵻtwˌiːn kjˈɛldɑːl nˈaɪtɹədʒən kˈɑːntɛnt ænd pɹˈoʊtiːn kˈɑːntɛnt ɪɾ ɪz ɐn ɪmpˈoːɹtənt mˈɛθəd fɔːɹ ˈænɐlˌaɪzɪŋ pɹˈoʊtiːnz.
Using an empirical relation between Kjeldahl nitrogen content and protein content it is an important method for analyzing proteins.