摘要
以合成的β-环糊精交联树脂为吸附剂,紫外可见光谱分析微量对硝基酚。在碱性条件下,考察了对硝基酚在β-环糊精交联树脂上的吸附行为。在0.02mol/L NaOH介质中,室温下吸附30min,树脂能有效分离富集对硝基酚,以甲醇-水(1∶1,V/V)溶液为洗脱液,树脂能重复利用。此方法线性范围是0.5～90mg/L,检出限为0.15mg/L,测定结果令人满意。
The β-cyclodextrin cross-linked polymer（β-CDCP） was used as adsorbent to pre-concentrate/separate the trace p-nitrophenol and then the determination was carried by UV-Vis spectrophotometry. Under alkaline condition, the adsorption/elution behavior of p-nitrophenol was studied. In 0.02 mol/L NaOH solution and at room temperature for 30 min, the resin could separate and pre-concentrate the p-nitrophenol effectively. Methanol solution（ 1：1, V/V） was used as eluent and the β-CDCP could be used repeatedly. The linear range and detection limit was 0.5 -90.0 mg/L and 3.10 μg/L, respectively. The proposed method has been used to determine the p-nitrophenol in synthesized sample with satisfactory results.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
2009年第11期1691-1694,共4页
Chinese Journal of Analytical Chemistry
基金
国家自然科学基金(No.20875082)资助项目
关键词
β-环糊精交联树脂
紫外-可见光谱
对硝基酚
β-Cyclodextrin cross-linked polymer
ultraviolet-visible spectrophotometry
p-nitrophenol
