Ultra-Trace Determination of Lead(II) in Water Using Electrothermal Atomic Absorption Spectrometry after Preconcentration by Solid-Phase Extraction to a Small Piece of Cellulose Acetate Type Membrane Filter

被引：11

作者：

Mizuguchi, Hitoshi ^{[1
]}

Ishida, Mirai ^{[1
]}

Takahashi, Tomohiro ^{[1
]}

Sasaki, Atsushi ^{[2
]}

Shida, Junichi ^{[1
]}

机构：

[1] Yamagata Univ, Grad Sch Sci & Engn, Yonezawa, Yamagata 9928510, Japan

[2] Yamagata Univ, Tech Div Instrumental Anal, Fac Engn, Yonezawa, Yamagata 9928510, Japan

来源：

ANALYTICAL SCIENCES | 2011年 / 27卷 / 01期

关键词：

ANION-EXCHANGE RESIN; GRAPHITE-FURNACE AAS; SILICA-GEL SORBENT; ONLINE PRECONCENTRATION; SOLVENT-EXTRACTION; BIOLOGICAL SAMPLES; INJECTION; SEPARATION; ION; DIBENZO-18-CROWN-6;

D O I：

10.2116/analsci.27.85

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple and inexpensive preconcentration technique has been developed for the ultra-trace determination of lead(II) using electrothermal atomic absorption spectrometry (ETAAS). The lead(II) complex with dicyclohexano-18-crown 6-ether (DC18C6) was extracted to a small piece of cellulose acetate-type membrane filter (2 x 5 mm) merely by vigorously eccentric stirring for 120 min under the coexistence of sodium dodecyl sulfate (SDS) at around pH 7. The extraction medium was inserted into a graphite cuvette for the determination of lead(II) by ETAAS. A linear relation was obtained for the range of 0.1 - 5.0 ng in 10 ml of lead(II) standard solution (r = 0.998). The detection limit was found to be 0.03 ng of lead(II) in 10 nil (0.003 mu g l(-1)) of water sample. The proposed method was applied to the ultra-trace determination of lead(II) in river water, underground water, tap water, and snow fall samples.

引用

页码：85 / 89

页数：5

共 50 条

[1] Ultra-Trace Determination of Lead(II) in Water Using Electrothermal Atomic Absorption Spectrometry after Preconcentration by Solid-Phase Extraction to a Small Piece of Cellulose Acetate Type Membrane Filter
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Mirai Ishida
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[J]. Analytical Sciences, 2011, 27 : 85 - 89
[2] Lead ultra-trace on-line preconcentration and determination using selective solid phase extraction and electrothermal atomic absorption spectrometry:: applications in seawaters and biological samples
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