Acridine orange-β-cyclodextrin 내포 착물을 이용한 카페인의 분광형광법 정량
Spectrofluorometric determination of caffeine using acridine orange-β-cyclodextrin inclusion complex
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
A method on the determination of caffeine in beverage with acridiene orange-β-cyclodextrin (CD)inclusion complex was developed. The conditions such as pH of the sample solution and concentration of acridine orange and β-CD were optimized to 12.0(±0.5), 1.9 × 10−6 M and 1.25 × 10−3 M, respectively. Under these optimum conditions, the calibration curve of caffeine was obtained over concentration range of 5 × 10−5~ 1.1 × 10−3 M. The detection limit was 1.0 × 10−5 M. The relative errors(%) in beverage samples were less than 5.0%.
Abstract
A method on the determination of caffeine in beverage with acridiene orange-β-cyclodextrin (CD)inclusion complex was developed. The conditions such as pH of the sample solution and concentration of acridine orange and β-CD were optimized to 12.0(±0.5), 1.9 × 10−6 M and 1.25 × 10−3 M, respectively. Under these optimum conditions, the calibration curve of caffeine was obtained over concentration range of 5 × 10−5~ 1.1 × 10−3 M. The detection limit was 1.0 × 10−5 M. The relative errors(%) in beverage samples were less than 5.0%.
참고문헌 (9)
- M. A. Rostagno, , Anal. Chim. Acta, 685, pp.204~211 (2011)
- U. L. P. Okonny, , Electrophoresis, 26, pp.2652~2663 (2005)
- L. vorc, , Food Chem, 135, pp.1198~1204 (2012)
- N. M. Najafi, , Microchem. J, 75, pp.151~158 (2003)
- Q. Chen, , Anal. Chim. Acta, 371, pp.287~296 (1998)
- M. S. El-Shahaw I, , Food Chem, 134, pp.2268~2275 (2012)
- A. A. Rahim, , Food Chem, 126, pp.1412~1416 (2011)
- X. Zhu, , Talanta, 72, pp.237~242 (2007)
- D. A. Skoog, "Fundamentals of Analytical Chemistry, 8th ed.", pp.2004, Thomson Brooks