| Solid Phase Extraction of Thallium(III) on Micro Crystalline Naphthalene Modified with N,N’-Bis(3-methylsalicylidene)- ortho-phenylenediamine and Determination by Spectrophotometry |
| |
| 引用本文： | MOGHIMI Ali. Solid Phase Extraction of Thallium(III) on Micro Crystalline Naphthalene Modified with N,N’-Bis(3-methylsalicylidene)- ortho-phenylenediamine and Determination by Spectrophotometry[J]. 中国化学, 2008, 26(10): 1831-1836. DOI: 10.1002/cjoc.200890330 |
| |
| 作者姓名： | MOGHIMI Ali |
| |
| 作者单位： | Department of Chemistry, East Tehran (Ghiam Dasht) Campus, Islamic Azad University, Tehran, Iran |
| |
| 摘 要： | A novel, simple, sensitive and effective method has been developed for preconcentration of thallium on N,N’-bis(3-methylsalicylidene)-ortho-phenylenediamine (MSOPD) adsorbent in a pH range 5.0—10.0, prior to its spectrophotometric determination, based on the oxidation of bromopyrogallol red at λ＝520 nm. This method makes it possible to quantitize thallium in a range of 3.6×10－9 to 2.0×10－5 mol/L, with a detection limit (S/N＝3) of 1.42×10－9 mol/L. This procedure has been successfully applied to determine the ultra trace levels of thallium in the environmental samples, free from the interference of some diverse ions. The precision, expressed as relative standard deviation of three measurements, is better than 2.9%.
|
| 关 键 词： | thallium(III) SPE N N’-bis(3-methylsalicylidene)-ortho-phenylenediamine (MSOPD) |
| 收稿时间： | 2007-08-07 |
| 修稿时间： | 2008-05-08 |
Solid Phase Extraction of Thallium(III) on Micro Crystalline Naphthalene Modified with N,N′‐Bis(3‐methylsalicylidene)‐ortho‐phenylenediamine and Determination by Spectrophotometry |
| |
| Ali MOGHIMI. Solid Phase Extraction of Thallium(III) on Micro Crystalline Naphthalene Modified with N,N′‐Bis(3‐methylsalicylidene)‐ortho‐phenylenediamine and Determination by Spectrophotometry[J]. Chinese Journal of Chemistry, 2008, 26(10): 1831-1836. DOI: 10.1002/cjoc.200890330 |
| |
| Authors: | Ali MOGHIMI |
| |
| Abstract: | A novel, simple, sensitive and effective method has been developed for preconcentration of thallium on N,N′‐bis(3‐methylsalicylidene)‐ortho‐phenylenediamine (MSOPD) adsorbent in a pH range 5.0–10.0, prior to its spectrophotometric determination, based on the oxidation of bromopyrogallol red at λ=520 nm. This method makes it possible to quantitize thallium in a range of 3.6×10?9 to 2.0×10?5 mol/L, with a detection limit (S/N=3) of 1.42×10?9 mol/L. This procedure has been successfully applied to determine the ultra trace levels of thallium in the environmental samples, free from the interference of some diverse ions. The precision, expressed as relative standard deviation of three measurements, is better than 2.9%. |
| |
| Keywords: | thallium(III) SPE N,N′‐bis(3‐methylsalicylidene)‐ortho‐phenylenediamine (MSOPD) |
|
| 点击此处可从《中国化学》浏览原始摘要信息 |
|
点击此处可从《中国化学》下载全文 |
|
