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American Journal of Analytical Chemistry is a peer reviewed international journal dedicated to the latest advancement in analytical chemistry. The goal of this journal is to keep a record of the state-of-the-art research and to promote study, research and improvement within its various specialties. All manuscripts sub…
Mona N. El Hazek, Azza A. Gabr, 1 1
Sedimentary rocks have been found to host several Mn minerals in addition to some economic metal values. Besides recoverable Al occurring as gibbsite mineral, the latter include Cu, Zn, Co, Ni, U as well as rare earth elements. In this work, the ore material…
Jing Zhang, Tian Ai, Jiemei Chen, Tao Pan
Teicoplanin (TCP) is a multiple drug-resistant lipoglycopeptide antibiotic produced by fermenting Actinoplanes teichomyceticus . In this study, a mixture of TCP with the Tris-HCl buffer (TCP-Tris- HCl) was used to simulate TCP fermentation broth. The reagent-…
Hanaa Hameed Haddad
Schiff base synthesis is usually acid catalyzed and it usually requires refluxing the mixture of aldehydes and amine in ethanolic solution. Synthesis and characterization of Schiff base ligands derived from substituted amine and salicylaldehyde and their comp…
Miguel Ángel López Zavala, Blanca Nelly Flores Arriaga, Naoyuki Funamizu
A rapid, cost effective and reliable analytical method was developed and validated for the simultaneous determination of four estrogens (17 β -estradiol, 17 α -ethinylestradiol, estrone, and estriol) in compost samples from the biodegradation of biological in…
Daekyoum Kim
During studying the heat capacity of metals and brightening more than the original Lena’s image, the temperature increasing term obtained in binomial expansion is transformed into the adsorption increasing term and thereafter we have derived the total adsorpt…
Arsentii D. Dadashev, Valentyn А. Tertykh, Elina S. Yanovska, Karolina V. Yanova
Guanidine hydrochloride was chemically bonded to surface of modified silica by means of condensation with grafted amino groups. Ion-exchanging and complexing properties of the obtained adsorbent have been studied with respect to cations of Zn(II), Cu(II), Pb(…
Mazhar Iqbal Khaskheli, Saima Qayyum Memon, Zaheer Ahmed Chandio, Wahid Bux Jatoi, Mohammad Tariq Mahar, Faiz Mohammad Khokhar
The present study demonstrates the sorptive efficiency of okra leaves for the Cr(III) and Cr(VI) in aqueous system. The batch dynamic sorption method was carried out as the function of the pH of the solution, sorbent doze, initial bulk concentration, shaking…
Pavel Straka
For geochemical purposes, complex aluminum compounds in coal organic matter in different types of coal were identified by solid state nuclear magnetic resonance measurements of <sup>27</sup>Al. Low ash samples of anthracites, bituminous coals and altered coal…
Jeganathan Saranya, Lakshmanan Rajendran, Mariappan Uma Maheswari
A theoretical model for the non steady-state response of a pH-based potentiometric biosensor immobilizing organophosphorus hydrolase (OPH) is discussed. The model is based on a system of five coupled nonlinear reaction-diffusion equations under non steady-sta…
José Martínez-Mendoza, Erika Espericueta-González, Diana Espericueta González, Gerardo Ortega-Zarzosa, Azdrubal Lobo Guerrero
This work studied the thermostability and the biostability of chlorophyll species obtained from an extract of spinach leaves embedded in a silica xerogel matrix. The analysis was done by monitoring the photosystem II (PSII) using fluorescence spectroscopy. Sa…
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American Journal of Analytical Chemistry is a peer reviewed international journal dedicated to the latest advancement in analytical chemistry. The goal of this journal is to keep a record of the state-of-the-art research and to promote study, research and improvement within its various specialties. All manuscripts sub… All articles are open access under a CC BY 4.0 licence, with authors retaining copyright.
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