Synthesis of Cross-Linked Chitosan and Application to Adsorption and Speciation of Se (VI) and Se (IV) in Environmental Water Samples by Inductively Coupled Plasma Optical Emission Spectrometry

被引：11

作者：

Dai, Jun ^{[1
,2
]}

Ren, Feng Lian ^{[1
]}

Tao, Chun Yuan ^{[2
]}

Bai, Yang ^{[2
]}

机构：

[1] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Hunan, Peoples R China

[2] Jiujiang Univ, Coll Chem & Chem Engn, Jiujiang 332005, Jiangxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES | 2011年 / 12卷 / 06期

关键词：

cross-linked chitosan; speciation; inductively coupled plasma optical emission spectrometry; selenium; CAPILLARY-ELECTROPHORESIS; INORGANIC SELENIUM; METAL-IONS; PRECONCENTRATION; SEPARATION;

D O I：

10.3390/ijms12064009

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A new type of cross-linked chitosan was synthesized with Diethylene Triamine (DCCTS). The adsorption of Se (VI) on DCCTS was studied. The effect factors on adsorption and the adsorption mechanism were considered. The results indicated that the DCCTS could concentrate and separate Se (IV) at pH = 3.6; the maximum adsorption efficiency was 94%, the adsorption equilibrium time was 30 min; the maximum adsorption capacity was 42.7 mg/g; the adsorption fitted Langmuir equation. A novel method for speciation of Se (VI) and Se (IV) in environmental water samples has been developed using DCCTS as adsorbent and ICP-OES as determination means. The detection limit of this method was 12 ng/L, the relatively standard deviation was 4.5% and the recovery was 99%similar to 104%.

引用

页码：4009 / 4020

页数：12