Solid-phase microextraction determination of alcohol using pencil lead

被引：6

作者：

Tong, Z ^{[1
]}

Guanghan, L ^{[1
]}

Xin, Y ^{[1
]}

机构：

[1] Cent China Normal Univ, Dept Chem, Wuhan 430079, Peoples R China

来源：

ANALYTICAL LETTERS | 2001年 / 34卷 / 04期

关键词：

pencil lead; SPME; alcohol; water;

D O I：

10.1081/AL-100002600

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In order to conquer the shortcomings of commercial SPME coatings: they can't stand high temperature, are easy to drop off, the longevity of usage is short and they are too expensive, we used pencil lead as a new sorbent to analyze the alcohol in water. The linear range is 5x10(-6)-2.5x10(-8)g/mL. The detection limit is 5x10(-9)g/mL. We also used this method to determine the concentration of alcohol in environment water. The recoveries are 107.5% and 97%. The RSD is 5.9%. Hence the pencil lead is a very good material for solid-phase microextraction (SPME).

引用

页码：627 / 634

页数：8

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