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A new method for isolating (E)-azastilbene derivatives with antimicrobial properties from aqueous samples Cover

A new method for isolating (E)-azastilbene derivatives with antimicrobial properties from aqueous samples

Oceanological and Hydrobiological Studies
Volume 47 (2018): Issue 1 (March 2018)
By: Mariusz Kluska,  Ewa Witkowska-Krajewska and  Wiesław Prukała  
Open Access
|Mar 2018

Figures & Tables

Figure 1

Structures of the analysed compounds: a) bromide of (E)-N-(o-bromobenzyl)-4′-hydroxystilbazole-4 (A1), and b) chloride of (E)-N-(p-chlorobenzyl)-4′-hydroxystilbazole-4 (A2)
Structures of the analysed compounds: a) bromide of (E)-N-(o-bromobenzyl)-4′-hydroxystilbazole-4 (A1), and b) chloride of (E)-N-(p-chlorobenzyl)-4′-hydroxystilbazole-4 (A2)

Figure 2

Chemical structures of bonded stationary phases used in the study: a) octadecyl, b) octyl, c) naphthylpropyl stationary phases
Chemical structures of bonded stationary phases used in the study: a) octadecyl, b) octyl, c) naphthylpropyl stationary phases

Figure 3

Breakthrough curves for bromide of (E)-N-(o-bromobenzyl)-4′-hydroxystilbazole-4, obtained in the column packings used in the study
Breakthrough curves for bromide of (E)-N-(o-bromobenzyl)-4′-hydroxystilbazole-4, obtained in the column packings used in the study

Figure 4

Mean recovery values (1 hour after sample preparation) for bromide of (E)-N-(o-bromobenzyl)-4′-hydroxystilbazole-4 (A1) and chloride of (E)-N-(p-chlorobenzyl)-4′-hydroxystilbazole-4 (A2), obtained from different matrices in the columns used in the study (n = 5)
Mean recovery values (1 hour after sample preparation) for bromide of (E)-N-(o-bromobenzyl)-4′-hydroxystilbazole-4 (A1) and chloride of (E)-N-(p-chlorobenzyl)-4′-hydroxystilbazole-4 (A2), obtained from different matrices in the columns used in the study (n = 5)

Figure 5

Mean content values for bromide of (E)-N-(o-bromobenzyl)-4′-hydroxystilbazole-4 (A1) and chloride of (E)-N-(p-chlorobenzyl)-4′-hydroxystilbazole-4 (A2) in the distilled, surface and waste water samples after 1 hour, 7 days, 28 days and 12 months, obtained in the naphthylpropyl column
Mean content values for bromide of (E)-N-(o-bromobenzyl)-4′-hydroxystilbazole-4 (A1) and chloride of (E)-N-(p-chlorobenzyl)-4′-hydroxystilbazole-4 (A2) in the distilled, surface and waste water samples after 1 hour, 7 days, 28 days and 12 months, obtained in the naphthylpropyl column

Concentration range of analytical compounds at which calibration curves are linear, and sensitivity of the HPLC method

CompoundConcentration range (μg ml−1)Linear regression equationR2LOD (μg ml−1)LOQ (μg ml−1)
(Al)5–300y = 0.5060x + 0.04990.99990.1520.457
(A2)5–300y = 0.4998x + 0.04210.99990.1490.473

Chemical and physical data of the analysed compounds

CompoundM.p. °CIR (KBr) (cm−1) δCH=CH1H-NMR δ(ppm) -ch2-+N
(A1)217–2209815.91
(A2)240–2439865.82
DOI: https://doi.org/10.1515/ohs-2018-0003 | Journal eISSN: 1897-3191 | Journal ISSN: 1730-413X
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Language: English
Page range: 19 - 26
Submitted on: Jul 13, 2017
|
Accepted on: Sep 8, 2017
|
Published on: Mar 13, 2018
Published by: University of Gdańsk
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
surface water,
waste water,
disinfectants,
extraction,
(E)-azastilbenes
Related subjects:
Chemistry,
Chemistry, other,
Geosciences,
Geosciences, other,
Life sciences,
Life sciences, other

© 2018 Mariusz Kluska, Ewa Witkowska-Krajewska, Wiesław Prukała, published by University of Gdańsk
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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