作　　者： ; ; ;

机构地区： 韩山师范学院化学系

出　　处： 《韩山师范学院学报》 2007年第6期60-63,共4页

摘　　要： 用简易荧光计研究了在碱性介质中,银-硫化钠-十六烷基三甲基溴化铵体系的共振散射光谱,考查了它们的光谱特征、影响因素和适宜的反应条件;确定了散射光强度与溶液中银浓度的关系,提出了共振光散射法测定银的方法.该法在室温下进行,操作方便,具有较高的灵敏度;线性范围为0.0～6.0μg/mL,方法的捡出限为0.041μg/mL;用于环境水样中银浓度的测定,结果满意。 The resonance light scattering spectrum of cetyltrimethyl ammonium bromide in alkaline medium was enhanced significantly in the presence of [Ag2S]/S^2-solution. The spectral characteristics, the affecting factors and the optimum conditions of the reaction were thus investigated by easy fluorophotometer. A new method based on the relationship of the intensity of resonance light scattering to the concentration of silver（Ⅰ） in water sample was established. This method can be operated conveniently at ambient temperature with high sensitivity. The detection limit and the linear range for Ag（Ⅰ）were 0.041 μg /mL and0.0 -6.0 μg/mL, respectively. The proposed method has been used to determine Ag（Ⅰ） in the environmental water sample with satisfactory results.

关 键 词： 银 十六烷基三甲基溴化铵 共振光散射

领　　域： [理学] [理学]