https://nrc-publications.canada.ca/eng/view/object/?id=31ea54ad-f9d6-4349-b1eb-79cb962ca1ad
The spectrophotometric determination of strontium with murexide (ammonium purpurate) - NRC...
The spectrophotometric determination of strontium with murexide (ammonium purpurate)
spectrophotometricdeterminationstrontiummurexideammonium