摘要
利用缔合物Ｃｒ（ＨＬ′）２－ＳＣＮ－ＤＢＳ能被可溶滤膜富集的特点，用石墨炉原子吸收分光光度法测定了Ｃｒ（ＶＩ）为０．１μｇ·Ｌ－１级水样。在Ｃｒ（ＶＩ）为１．０～６．０μｇ·Ｌ－１测量范围内，Ｃｒ（ＶＩ）的浓度与吸光度呈良好的线性关系，其相关系数ｒ＝０．９９８８，检测限０．０５μｇ·Ｌ－１。地表水及饮用水中常见离子不影响测定，水样加标回收率为９０％～１１０％。
Based on the enrichment of Cr(HL′)2SCNDBS ternary complex on a soluble membrane filter,a sensitive method for the determination of lower than 0.1μg·L-1level Cr(VI)in water by the GFAAS is proposed.The linear range of determination is 1.0～6.0μg·L-1in water and the detection limit is 0.05μg·L-1.Ions normally present in water have no interference,and the recoveries of standard addition of Cr(VI) are 90%～110%.
出处
《华东理工大学学报（自然科学版）》
CAS
CSCD
北大核心
1998年第4期488-493,共6页
Journal of East China University of Science and Technology
关键词
铬
富集
石墨炉
原子吸收
分光光度法
溶膜
chromium(VI)
preconcentration
GFAAS
solublemembrane
surfactant
