金橙-2分光光度法测定饱和盐溶液中十八胺盐酸盐的含量  

Determination of octadecylamine hydrochloride in saturated salt solution using orange Ⅱ spectrophotometric method

作　　者：梁慧斌[1] 杜志平[1] 李恩泽[1] 段平梅 程芳琴[1] 

机构地区：[1]山西大学资源与环境工程研究所国家环境保护煤炭废弃物资源化高效利用技术重点实验室,山西太原030006

出　　处：《日用化学工业》2016年第8期485-488,共4页China Surfactant Detergent & Cosmetics

基　　金：国家自然科学基金资助项目(21376144)

摘　　要：利用金橙-2分光光度法研究了饱和KCl溶液中十八胺盐酸盐浓度的测定方法,考察了缓冲溶液用量、显色剂用量和稳定时间等因素对测定的影响,确定了测定的优化条件。结果表明,十八胺盐酸盐-金橙-2络合物的最大吸收波长为485 nm,标准曲线线性良好,回归方程为y=0.063 7x-0.068 9,相关系数R^2=0.991 3,测定结果的相对标准偏差为1.53%。该法重现性好,准确性较高且操作简便,可应用于KCl浮选的饱和KCl溶液中十八胺盐酸盐的测定。Determination of content of octadecylamine hydrochloride in KC1 saturated solution with orange Ⅱ spectrophotometric method was studied. Factors that affecting the test results such as the amount of buffer solution and indicator, and the time for stabilizing the chromogenic reaction were investigated; and the optimized experimental conditions were identified. Results indicated that the maximum absorption wavelength of the complex formed by octadecylamine hydrochloride and orange Ⅱ is 485 nm that showing good linearity with regression equation of y = 0. 063 7x - 0. 068 9. The correlation coefficient is 0. 991 3. The relative standard deviation of quantitative analysis method is 1.53%.

关 键 词：十八胺盐酸盐 分光光度法 含量分析 

分 类 号：O657.3[理学—分析化学] TD923.13[理学—化学]