Novel method for the fast preconcentration and monitoring of a ppt level of lead and copper with a modified hexagonal mesoporous silica compound and inductively coupled plasma atomic emission spectrometry

被引：40

作者：

Ganjali, MR ^{[1
]}

Babaei, LH

Badaei, LH

Ziarani, GM

Tarlani, A

机构：

[1] Univ Tehran, Dept Chem, Tehran, Iran

[2] Alzahra Univ, Dept Chem, Tehran, Iran

来源：

ANALYTICAL SCIENCES | 2004年 / 20卷 / 04期

关键词：

D O I：

10.2116/analsci.20.725

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A novel method for the rapid extraction and determination of a ppt level of Ph2+ and Cu2+ ions using partial silylated MCM-41 modified by a new salophen and inductively coupled plasma atomic emission spectrometry (ICP-AES) is introduced. The preconcentration factor of the method is 500, and the detection limits of Pb(2+)and Cu2+ are 335 and 34 ng L-1, respectively. The time and efficiency of extraction, the pH and flow rate, the type and minimum amount of acid for stripping of Ph2+ and Cu2+ from modified MCM-41 and the break-through volume were investigated. The maximum capacity of 4 mg of silylated MCM-41 modified by salophen used was found to be 150 +/- 4 and 117 +/- 3 mug of Pb2+ and Cu2+, respectively.

引用

页码：725 / 729

页数：5

共 31 条

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