Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Constantinos K. Zacharis"'
Publikováno v:
Molecules, Vol 28, Iss 17, p 6205 (2023)
A high-throughput fluorimetric assay for histidine was developed, using a 96-well plates platform. The analyte reacts selectively with o-phthalaldehyde under mild alkaline conditions to form a stable derivative. Instrumental-free detection was carrie
Externí odkaz:
https://doaj.org/article/1cbcfe7ca8a4446fa1d74b8c4d3fe9b3
Publikováno v:
Molecules, Vol 28, Iss 2, p 888 (2023)
In this communication, we describe the first analytical method for the determination of free histidine in hair care products (shampoos and conditioners). Cation-exchange chromatography combined with postcolumn derivatization and fluorimetric detectio
Externí odkaz:
https://doaj.org/article/1af7e3c437f844c18663153aaccf896b
Autor:
Kalliopi Papavasileiou, Apostolia Tsiasioti, Paraskevas D. Tzanavaras, Constantinos K. Zacharis
Publikováno v:
Molecules, Vol 27, Iss 11, p 3489 (2022)
In this study, the development, validation, and application of a new liquid chromatography post-column derivatization method for the determination of Colistin in human urine samples is demonstrated. Separation of Colistin was performed using a core
Externí odkaz:
https://doaj.org/article/17ed08ff836440c7a79e2c2b42a94c57
Publikováno v:
Molecules, Vol 27, Iss 7, p 2040 (2022)
Herein, we report a new automated flow method based on zone fluidics for the simultaneous determination of homocysteine and homocysteine thiolactone using fluorimetric detection (λext = 370 nm/λem = 480 nm). Homocysteine thiolactone is hydrolyzed o
Externí odkaz:
https://doaj.org/article/2ca20055435e419ea8bc2a363a1c705b
Autor:
Maria S. Synaridou, Vasilis Tsamis, Georgia Sidiropoulou, Constantinos K. Zacharis, Irene Panderi, Catherine K. Markopoulou
Publikováno v:
Molecules, Vol 26, Iss 14, p 4325 (2021)
Amino acids present ergogenic action, helping to increase, protect, and restore the muscular system of young athletes. Moreover, the encapsulation of five relevant amino acids in chocolate pellet form will appeal to them, facilitating their daily con
Externí odkaz:
https://doaj.org/article/1ea6566e7dfa43cc977fac39c9d04eff
Publikováno v:
Molecules, Vol 26, Iss 4, p 824 (2021)
In the present research, a zone fluidics-based automated sensor for the analysis of captopril in in vitro dissolution samples is reported. Captopril is reacted under flow conditions with Ni(II) (10 mmol L−1) in alkaline medium (0.15% v/v NH3) to fo
Externí odkaz:
https://doaj.org/article/b32a0e99105a4327b344e89bbb1452e0
Publikováno v:
Molecules, Vol 25, Iss 16, p 3560 (2020)
Modern analytical chemistry plays a vital role in pharmaceutical sciences [...]
Externí odkaz:
https://doaj.org/article/9506175eeee24f4897237a3d757a8daa
Publikováno v:
Molecules, Vol 25, Iss 7, p 1665 (2020)
In the present study, the determination of histidine (HIS) by an on-line flow method based on the concept of zone fluidics is reported. HIS reacts fast with o-phthalaldehyde at a mildly basic medium (pH 7.5) and in the absence of additional nucleophi
Externí odkaz:
https://doaj.org/article/b4bdcf090cf14ccdbebcfeb9a511eae7
Publikováno v:
Molecules, Vol 25, Iss 9, p 2096 (2020)
In-tube solid phase microextraction is a cutting-edge sample treatment technique offering significant advantages in terms of miniaturization, green character, automation, and preconcentration prior to analysis. During the past years, there has been a
Externí odkaz:
https://doaj.org/article/1a030c7cb3a44eabb57d1b7d35dce2d1
Autor:
Eleni Tsanaktsidou, Christina Karavasili, Constantinos K. Zacharis, Dimitrios G. Fatouros, Catherine K. Markopoulou
Publikováno v:
Molecules, Vol 25, Iss 6, p 1387 (2020)
One of the most challenging goals in modern pharmaceutical research is to develop models that can predict drugs’ behavior, particularly permeability in human tissues. Since the permeability is closely related to the molecular properties, numerous c
Externí odkaz:
https://doaj.org/article/8f233e2726c44822a13140f16b334abc