Spectrochemical and thermal analysis of Al-tetrabromophthalate and tetrabromophthalic anhydride. A comparison of methods for determination of aluminium.
A sequential inductively coupled plasma atomic emission spectrometer (ICP-AES) was used to determine Al content in Al-tetrabromophthalate (Al-TBP). Four emission lines of Al (I) at 309.271, 396.152, 308.215 and 394.401 nm were compared. The microwave mineralisation was carried out by using a two-step digestion procedure and HNO(3)-H(2)SO(4). The thermal analysis of Al-TBP and tetrabromophthalic anhydride (TBPA) was performed in the air atmosphere. Statistical tests applied (t-test, F-test) showed no significant differences between the Al results obtained by ICP-AES and thermal method of analysis.
Paama
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Institute of Chemical Physics, University of Tartu, EE2400 Tartu, Estonia.
Rönkkömäki
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Perämäki
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