[1]张智宏,孙晓娟,张雪梅.汽油中铅的导数分光光度测定[J].常州大学学报(自然科学版),1999,(03):33-35.
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汽油中铅的导数分光光度测定
常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]
- 卷:
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- 期数:
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1999年03期
- 页码:
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33-35
- 栏目:
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- 出版日期:
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1900-01-01
文章信息/Info
- Title:
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Determination of Lead in Gasoline by Forth Derivative Spectrophotometry
- 作者:
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张智宏; 孙晓娟; 张雪梅
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江苏石油化工学院化学工程系，常州213016 江苏石油化工学院化学工程系，常州213016 江苏石油化工学院化学工程系，常州213016
- 关键词:
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导数分光光度法 铅 汽油 烷基铅
- Keywords:
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Derivative spectrophotometry Lead Gasoline Alkyl lead
- 分类号:
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X132
- 摘要:
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研究了一种汽油中铅的导数分光光度测定方法， 对建立高效、快速、简便、成本低的预处理方法进行了探索， 并研究了测定最佳条件、常见共存离子的干扰以及合理分光体系的选择。用碘－ 正辛醇溶液处理油品， 将烷基铅转化为无机铅化合物， 并用硝酸提取至水相， 以盐酸－ 氯化钠为介质体系， 用导数分光光度法测定铅含量。结果表明该方法适合测定铅含量大于５０ μｇ·Ｌ－ １ 的汽油。
- Abstract:
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A method of determining of lead in gasoline was studied by derivative spectrophotometry.A series of explorations have been made for developing an excellent,high speed,convenient and low-consumption method.Furthermore,optimum conditions,interference of coexisting ions and rational spectro-system were researched.The alkyl lead in gasoline was transformed into inorganic lead compound by the oxidation of iodine-n-octanol which was extracted into aqueous phase by 1 0 mol·L -1 HNO 3 and determined in the medium of 3 0mol·L -1 -2mol·L -1 NaCl solution by forth derivative spectrophotometry.The results showed the method could be applied to determine lead contents in gasoline which were more than 50μg·L -1 .
更新日期/Last Update:
1900-01-01