Dynamic adsorption of diarrhetic shellfish poisoning (DSP) toxins in passive sampling relates to pore size distribution of aromatic adsorbent

doi:10.1016/j.chroma.2011.01.043

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Dynamic adsorption of diarrhetic shellfish poisoning (DSP) toxins in passive sampling relates to pore size distribution of aromatic adsorbent
	Li, Aifeng 1; Ma, Feifei 1; Song, Xiuli 1; Yu, Rencheng 2
刊名	JOURNAL OF CHROMATOGRAPHY A
	2011-03-18
卷号	1218 期号:11 页码:1437-1442
关键词	Solid-phase Adsorption Toxin Tracking Spatt Adsorption Pore Size Distribution Diarrhetic Shellfish Poisoning (Dsp) Resin
ISSN号	0021-9673
DOI	10.1016/j.chroma.2011.01.043
文献子类	Article
英文摘要	Solid-phase adsorption toxin tracking (SPATT) technology was developed as an effective passive sampling method for dissolved diarrhetic shellfish poisoning (DSP) toxins in seawater. HP20 and SP700 resins have been reported as preferred adsorption substrates for lipophilic algal toxins and are recommended for use in SHOT testing. However, information on the mechanism of passive adsorption by these polymeric resins is still limited. Described herein is a study on the adsorption of OA and DTX1 toxins extracted from Prorocentrum lima algae by HP20 and SP700 resins. The pore size distribution of the adsorbents was characterized by a nitrogen adsorption method to determine the relationship between adsorption and resin porosity. The Freundlich equation constant showed that the difference in adsorption capacity for OA and DTX1 toxins was not determined by specific surface area, but by the pore size distribution in particular, with micropores playing an especially important role. Additionally, it was found that differences in affinity between OA and DTX1 for aromatic resins were as a result of polarity discrepancies due to DTX1 having an additional methyl moiety. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.; Solid-phase adsorption toxin tracking (SPATT) technology was developed as an effective passive sampling method for dissolved diarrhetic shellfish poisoning (DSP) toxins in seawater. HP20 and SP700 resins have been reported as preferred adsorption substrates for lipophilic algal toxins and are recommended for use in SHOT testing. However, information on the mechanism of passive adsorption by these polymeric resins is still limited. Described herein is a study on the adsorption of OA and DTX1 toxins extracted from Prorocentrum lima algae by HP20 and SP700 resins. The pore size distribution of the adsorbents was characterized by a nitrogen adsorption method to determine the relationship between adsorption and resin porosity. The Freundlich equation constant showed that the difference in adsorption capacity for OA and DTX1 toxins was not determined by specific surface area, but by the pore size distribution in particular, with micropores playing an especially important role. Additionally, it was found that differences in affinity between OA and DTX1 for aromatic resins were as a result of polarity discrepancies due to DTX1 having an additional methyl moiety. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
学科主题	Biochemistry & Molecular Biology ; Chemistry
URL标识	查看原文
语种	英语
WOS记录号	WOS:000288305200003
公开日期	2012-07-03
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/11662]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Ocean Univ China, Minist Educ, Key Lab Marine Environm & Ecol, Qingdao 266100, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Li, Aifeng,Ma, Feifei,Song, Xiuli,et al. Dynamic adsorption of diarrhetic shellfish poisoning (DSP) toxins in passive sampling relates to pore size distribution of aromatic adsorbent[J]. JOURNAL OF CHROMATOGRAPHY A,2011,1218(11):1437-1442.
APA	Li, Aifeng,Ma, Feifei,Song, Xiuli,&Yu, Rencheng.(2011).Dynamic adsorption of diarrhetic shellfish poisoning (DSP) toxins in passive sampling relates to pore size distribution of aromatic adsorbent.JOURNAL OF CHROMATOGRAPHY A,1218(11),1437-1442.
MLA	Li, Aifeng,et al."Dynamic adsorption of diarrhetic shellfish poisoning (DSP) toxins in passive sampling relates to pore size distribution of aromatic adsorbent".JOURNAL OF CHROMATOGRAPHY A 1218.11(2011):1437-1442.