Int. J. Mol. Sci. 2011, 12(6), 4009-4020; doi:10.3390/ijms12064009
Article

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

Jun Dai 1,2,* email, Feng Lian Ren 1 email, Chun Yuan Tao 2 email and Yang Bai 2 email
1 College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China 2 College of Chemistry and Chemical Engineering, Jiujiang University, Jiujiang, Jiangxi 332005, China
* Author to whom correspondence should be addressed.
Received: 13 May 2011; in revised form: 29 May 2011 / Accepted: 9 June 2011 / Published: 14 June 2011
(This article belongs to the Section Material Sciences and Nanotechnology)
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Abstract: 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%~104%.
Keywords: cross-linked chitosan; speciation; inductively coupled plasma optical emission spectrometry; selenium

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MDPI and ACS Style

Dai, J.; Ren, F.L.; Tao, C.Y.; Bai, Y. 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. Int. J. Mol. Sci. 2011, 12, 4009-4020.

AMA Style

Dai J, Ren FL, Tao CY, Bai Y. 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. International Journal of Molecular Sciences. 2011; 12(6):4009-4020.

Chicago/Turabian Style

Dai, Jun; Ren, Feng Lian; Tao, Chun Yuan; Bai, Yang. 2011. "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." Int. J. Mol. Sci. 12, no. 6: 4009-4020.

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