引用本文:赵灵瑜,胡忻,陈逸珺,练鸿振.氨基化有机-无机杂化整体柱分离富集环境水中五价砷[J].环境监控与预警,2017,9(1):21-24
ZHAO Ling yu, HU Xin, CHEN Yi jun, LIAN Hong zhen.Separation and Preconcentration of As(V) in Environmental Waters by Aminated Organic inorganic Hybrid Monolithic Column[J].Environmental Monitoring and Forewarning,2017,9(1):21-24
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氨基化有机-无机杂化整体柱分离富集环境水中五价砷
赵灵瑜,胡忻,陈逸珺,练鸿振1,2
1. 生命分析化学国家重点实验室,南京大学化学化工学院,江苏 南京 210023;2. 南京大学现代分析中心,江苏 南京 210093
摘要:
将四乙氧基硅烷(TEOS)和N-(β-氨乙基)-γ-氨丙基三乙氧基硅烷(AEAPTES)作为共聚前体,采用在毛细管内原位聚合的方式制备得到氨基功能化的有机-无机杂化整体柱,将其作为针式固相微萃取(SPME)介质,建立了现场分离富集环境水中As(V)的SPME方法,优化了有机-无机杂化整体柱富集As(V)的实验条件,并研究了整体柱对As(V)的吸附/洗脱性能和富集能力,实现了环境水样中As(V)的高效、快速、高选择性检测。
关键词:  有机-无机杂化整体柱  电感耦合等离子质谱  五价砷  固相微萃取
DOI:
分类号:O658
文献标识码:B
基金项目:
Separation and Preconcentration of As(V) in Environmental Waters by Aminated Organic inorganic Hybrid Monolithic Column
ZHAO Lingyu, HU Xin, CHEN Yijun, LIAN Hongzhen1,2
1. State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, China;2. Center of Materials Analysis, Nanjing University, Nanjing, Jiangsu 210093, China
Abstract:
Amino functionalized organic inorganic hybrid monolithic column was prepared in situ in capillary using tetraethyl orthosilicate (TEOS) and N-(β-aminoethyl)-γ-aminopropyltriethoxysilane (AEAPTES) as copolymer precursors. The monolithic column was employed as the in syringe extraction medium for solid phase micro extraction (SPME) to specifically adsorb As(V). We established a SPME method for separation and preconcentration of As(V) in environmental waters on site. We optimized the experimental conditions for enrichment of As(V) and studied the adsorption and elution capabilities of organic inorganic hybrid monolithic column for As(V). Finally, it was realized to detect As(V) in environmental waters efficiently, fast and selectively.
Key words:  Aminated organic inorganic hybrid monolithic column  Inductively coupled plasma mass spectrometry (ICP-MS)  As(V)  Solid phase micro extraction