Solid-phase microextraction determination of alcohol using pencil lead

Authors
Tong, Z Guanghan, L Xin, Y
Citation
Z. Tong et al., Solid-phase microextraction determination of alcohol using pencil lead, ANAL LETTER, 34(4), 2001, pp. 627-634
Citations number
10
Categorie Soggetti
Chemistry & Analysis","Spectroscopy /Instrumentation/Analytical Sciences
Journal title
ANALYTICAL LETTERS
ISSN journal
00032719 → ACNP
Volume
34
Issue
4
Year of publication
2001
Pages
627 - 634
Database
ISI
SICI code
0003-2719(2001)34:4<627:SMDOAU>2.0.ZU;2-7
Abstract
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 s hort and they are too expensive, we used pencil lead as a new sorbent to an alyze the alcohol in water. The linear range is 5x10(-6)-2.5x10(-8)g/mL. Th e detection limit is 5x10(-9)g/mL. We also used this method to determine th e 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).