Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution
Апстракт
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).
Кључне речи:
Aluminiumnitrate / Hesperidin / pH-metry / Spectrophotometric methodsИзвор:
Analytical Letters, 1997, 30, 5, 917-926Издавач:
- Marcel Dekker Inc, New York
DOI: 10.1080/00032719708002306
ISSN: 0003-2719
WoS: A1997WQ02700003
Scopus: 2-s2.0-0030696769
Институција/група
PharmacyTY - JOUR AU - Malešev, Dušan AU - Radović, Z AU - Kuntić, Vesna AU - Kosanić, M PY - 1997 UR - https://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 DO - 10.1080/00032719708002306 UR - https://hdl.handle.net/21.15107/rcub_farfar_172 ER -
@article{ author = "Malešev, Dušan and Radović, Z and Kuntić, Vesna and Kosanić, M", year = "1997", 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", doi = "10.1080/00032719708002306", url = "https://hdl.handle.net/21.15107/rcub_farfar_172" }
Malešev, D., Radović, Z., Kuntić, V.,& Kosanić, M.. (1997). Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution. in Analytical Letters Marcel Dekker Inc, New York., 30(5), 917-926. https://doi.org/10.1080/00032719708002306 https://hdl.handle.net/21.15107/rcub_farfar_172
Malešev D, Radović Z, Kuntić V, Kosanić M. Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution. in Analytical Letters. 1997;30(5):917-926. doi:10.1080/00032719708002306 https://hdl.handle.net/21.15107/rcub_farfar_172 .
Malešev, Dušan, Radović, Z, Kuntić, Vesna, Kosanić, M, "Spectrophotometric determination of hesperidin by Al(III)-hesperidin complex in water-methanol solution" in Analytical Letters, 30, no. 5 (1997):917-926, https://doi.org/10.1080/00032719708002306 ., https://hdl.handle.net/21.15107/rcub_farfar_172 .