分析化学
分析化學
분석화학
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
2009年
11期
1691-1694
,共4页
β-环糊精交联树脂%紫外-可见光谱%对硝基酚
β-環糊精交聯樹脂%紫外-可見光譜%對硝基酚
β-배호정교련수지%자외-가견광보%대초기분
β-Cyclodextrin cross-linked polymer%ultraviolet-visible spectrophotometry%p-nitrophenol
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0.02 mol/L NaOH 介质中,室温下吸附30 min,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0.5～90 mg/L,检出限为0.15 mg/L,测定结果令人满意.
以閤成的β-環糊精交聯樹脂為吸附劑,紫外可見光譜分析微量對硝基酚.在堿性條件下,攷察瞭對硝基酚在β-環糊精交聯樹脂上的吸附行為.在0.02 mol/L NaOH 介質中,室溫下吸附30 min,樹脂能有效分離富集對硝基酚,以甲醇-水(1:1,V/V)溶液為洗脫液,樹脂能重複利用.此方法線性範圍是0.5～90 mg/L,檢齣限為0.15 mg/L,測定結果令人滿意.
이합성적β-배호정교련수지위흡부제,자외가견광보분석미량대초기분.재감성조건하,고찰료대초기분재β-배호정교련수지상적흡부행위.재0.02 mol/L NaOH 개질중,실온하흡부30 min,수지능유효분리부집대초기분,이갑순-수(1:1,V/V)용액위세탈액,수지능중복이용.차방법선성범위시0.5～90 mg/L,검출한위0.15 mg/L,측정결과령인만의.
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.
