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Position: Home > Articles > DETERMINATION OF SOLUBLE AL IN ACID SOIL SOLUTION USING SPECTROPHOTOMETRY WITH 8-HYDROXYQUINOLINE AT pH8.3 Soils 2004,36 (3) 307-309

8-羟基喹啉(pH8.3)分光光度法测定酸性土壤中的可溶性铝

作  者:
李九玉;徐仁扣;季国亮
单  位:
中国科学院南京土壤研究所
关键词:
8-羟基喹啉;分光光度法;酸性土壤;可溶性铝
摘  要:
8-羟基喹啉(pH8.3)分光光度法对酸性土壤中的可溶性铝测定的研究表明,Al标准曲线的线性范围为0 ~ 50 mmol/L,相关系数R2 = 0.9999,表观摩尔吸光系数为1.995 104 L/(mol·cm),回收率在98.7 % ~ 106.8 %之间,该方法重现性好,选择性高。
译  名:
DETERMINATION OF SOLUBLE AL IN ACID SOIL SOLUTION USING SPECTROPHOTOMETRY WITH 8-HYDROXYQUINOLINE AT pH8.3
作  者:
LI Jiu-yu 1,2 XU Ren-kou 1 JI Guo-liang 1 ( 1 Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008; 2 Graduate School of the Chinese Academy of Sciences, Beijing 100039 )
关键词:
Hydroxyquinoline, Spectrophotometry, Acid soil, Soluble Al
摘  要:
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 1.995104 L/(mol·cm). The results from recovery test showed that the recovery rate was from 98.7% to 106.8%.

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