摘要
提出一种测定痕量锡的新方法。该方法在590nm处的表观摩尔吸光系数为1.39×107L.mol-1cm-1,锡浓度在0-4.0μg/L范围内服从比耳定律,回归方程ΔA=0.4023+0.023Csn(Ⅳ)(μg/L),r=0.9996,检出限为1,0×10-12g/ml。此方法用于水样中锡的测定,结果满意。
A new inhibition-catalysis kinetic Spectropho-tometry for the determination of trace of Tin(Ⅳ)has been developed The apparent molar absorptivity is 1.39×10-7 L.mol-1.cm-1at λmax=590nm. Beer's law is obeyed in the range of 0-4μg/L,the linear regresionequation ΔA=0.4023+0.023 Csn(Ⅳ) (μg/L), r=0. 9996. And the detection limit is 1.0×10-12 g/ml. This method has been used for the determination of Tin (Ⅳ)in water SamT>les with a satis-factory result.
出处
《漳州师范学院学报(自然科学版)》
2000年第1期68-70,共3页
Journal of ZhangZhou Teachers College(Natural Science)