The composition and the stability constant of the Al(III)-hesperidin complex were determined by suitable spectrophotometric methods and pH measurements. The formation of the complex, whose concentration stability constant log K-1 ranged from 3.46 at pH=4.0 to 4.54 at pH=5.0, was established. The conditions for the spectrophotometric determination of hesperidin, by means of the complex formation, were investigated. It was found that hesperidin can be determined in the range from 2.50x10(-5)M to 1.75x10(-4)M. The application to the determination of hesperidin in orange juice is demonstrated. All investigations were carried out with 70% methanolic solutions at room temperature (20 degrees C), constant values of pH (3.7), and ionic strength (0.01).
TY - JOUR
AU - Malešev, Dušan
AU - Radović, Z
AU - Kuntić, Vesna
AU - Kosanić, M
PY - 1997
UR - http://farfar.pharmacy.bg.ac.rs/handle/123456789/172
AB - The composition and the stability constant of the Al(III)-hesperidin complex were determined by suitable spectrophotometric methods and pH measurements. The formation of the complex, whose concentration stability constant log K-1 ranged from 3.46 at pH=4.0 to 4.54 at pH=5.0, was established. The conditions for the spectrophotometric determination of hesperidin, by means of the complex formation, were investigated. It was found that hesperidin can be determined in the range from 2.50x10(-5)M to 1.75x10(-4)M. The application to the determination of hesperidin in orange juice is demonstrated. All investigations were carried out with 70% methanolic solutions at room temperature (20 degrees C), constant values of pH (3.7), and ionic strength (0.01).
PB - Marcel Dekker Inc, New York
T2 - Analytical Letters
T1 - Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution
VL - 30
IS - 5
SP - 917
EP - 926
ER -
@article{
author = "Malešev, Dušan and Radović, Z and Kuntić, Vesna and Kosanić, M",
year = "1997",
url = "http://farfar.pharmacy.bg.ac.rs/handle/123456789/172",
abstract = "The composition and the stability constant of the Al(III)-hesperidin complex were determined by suitable spectrophotometric methods and pH measurements. The formation of the complex, whose concentration stability constant log K-1 ranged from 3.46 at pH=4.0 to 4.54 at pH=5.0, was established. The conditions for the spectrophotometric determination of hesperidin, by means of the complex formation, were investigated. It was found that hesperidin can be determined in the range from 2.50x10(-5)M to 1.75x10(-4)M. The application to the determination of hesperidin in orange juice is demonstrated. All investigations were carried out with 70% methanolic solutions at room temperature (20 degrees C), constant values of pH (3.7), and ionic strength (0.01).",
publisher = "Marcel Dekker Inc, New York",
journal = "Analytical Letters",
title = "Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution",
volume = "30",
number = "5",
pages = "917-926"
}
Malešev D, Radović Z, Kuntić V, Kosanić M. Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution. Analytical Letters. 1997;30(5):917-926
Malešev, D., Radović, Z., Kuntić, V.,& Kosanić, M. (1997). Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution.
Analytical LettersMarcel Dekker Inc, New York., 30(5), 917-926.
Malešev Dušan, Radović Z, Kuntić Vesna, Kosanić M, "Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution" 30, no. 5 (1997):917-926
