ɪn spɛktɹˈɑːskəpi, ɐ sˈɔːɹət pˈiːk ɔːɹ sˈɔːɹət bˈænd ɪz ɐn ɪntˈɛns pˈiːk ɪnðə blˈuː wˈeɪvlɛŋθ ɹˈiːdʒən ʌvðə vˈɪzᵻbəl spˈɛktɹəm.
In spectroscopy, a Soret peak or Soret band is an intense peak in the blue wavelength region of the visible spectrum.