A spectrophotometry based on the extraction of the 8-hydroxyquinoline complex (at pH8.3) into butyl acetate was introduced to determine the soluble Al in acid soil solutions. The linear range of the determination is from 0 to 50mmol/L with a significant correlation (R2:0.9999). The method is sensitive with an apparent molar absorptivity of 1.995×104 L/(mol·cm). The results from recovery test showed that the recovery rate was from 98.7% to 106.8%.
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李九玉,徐仁扣,季国亮.8-羟基喹啉(pH8.3)分光光度法测定酸性土壤中的可溶性铝[J].土壤,2004,36(3):307-309. LI Jiu-yu, XU Ren-kou, JI Guo-liang. DETERMINATION OF SOLUBLE AL IN ACID SOIL SOLUTION USING SPECTROPHOTOMETRY WITH 8-HYDROXYQUINOLINE AT pH8.3[J]. Soils,2004,36(3):307-309