The matrix correction is suggested for determining Ga by flameless aas. The background is corrected by adding lmg/ml Ni using D2 lamp in 2 % nitric acid medium. The sensitivity of this method is 8.8 × 10-2g/1% Its C. V. for sample containing 0.02ppm of Ga is 1.81%(n=11).The re- coveries obtained by addition of standard Ga-solution are over 90 % . the mea- surable concentration range is O.OOOx-0.OOx % Ga.
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秦忠骏,周剑林,1984,利用基体改进效应—无火焰原子吸收测定矿石中微量镓[J].岩石矿物学杂志,3(4):367~370.,1984,Determination of Ga in Rocks by Flameless AAS Using Matrix Correction[J]. Acta Petrologica et Mineralogica,3(4):367~370.