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The application of atomic absorption spectrophotometry (AAS) for determining the content of heavy metals in phosphogypsum / Primena metode atomske apsorpcione spektrofotometrije (AAS) za određivanje sadržaja teških metala u fosfogipsu
(Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd, 2000)
Phosphogypsum is formed as a by-product in the process of 'green' phosphoric acid production. This is done in the so called 'wet process' by the action of sulphuric acid on raw phosphate at low temperature ( lt 100 °C). ...