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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…
Yoshihiro Kudo, Yamato Ishikawa, Hikaru Ichikawa
CdI 2 in water was extracted with 18-crown-6 ether (L) into 10 diluents at 298 K. The following equilibrium constants were determined or evaluated: some extraction constants ( K ex /mol -3 ·dm 9 & K ex,ip /mol -2 ·dm 6 for CdLI 2 , K ex± /mol -2 ·dm 6 for CdL…
Jan M. C. Geuns, Tom Struyf, Stijn Ceunen, Gert Steurs, Wim De Borggraeve
The internal standard (IS) method is the best method for the analysis of samples, as it is independent of errors in injection volume, changes in sample volumes, and changes in sensitivity of the detector, etc. Use of an internal standard allows for the correc…
Maria Fernanda Vargas-Charry, Carlos Vargas-Hernández
Spider silk fibers of species of the genera Araneus, Gasteracantha, and Linothele sericata were studied. The fibers are composed of axial threads and lateral villi, allowing adhesion to surfaces. Raman spectroscopy was used to determine the surface and intern…
Débora G. Santarossa, María C. Talio, Liliana P. Fernández
The aim of this work has been to evaluate the aluminium (Al(III)) traces contents in 24-hour urine samples from subjects with different tobacco smoke expositions using a new methodology with 1,4-dihydroxy-9, 10-anthraquinone (Quinizarine, QZ) as a fluorosphor…
Haichi Li, Jinfang Ma, Huanfen Xu, Yin Peng, Huazhuang Jiang, Zhaohua Shi, Fahuan Ge
To achieve a rapid and simple detection for the active ingredients of Aescin in the extraction process using near-infrared spectroscopy (NIR) and to realize the state monitoring and quality control of the extraction process. Partial least square regression (P…
Majida Mcheik, Joumana Toufaily, Mariam Akil, Tayssir Hamieh, Marie Therese Abi Saab, Bachar Haj Hassan, Youssef Rouphael
A study was conducted in the Bekaa valley of Lebanon aiming to produce spinach leaves with treated effluent from Joub Janine plant under two growing seasons. Two experiments were laid out in a randomized complete block design. The effect of water quality on t…
Zeinab Ibrahim, Bachar Koubaissy, Yehya Mohsen, Tayssir Hamieh, T. Jean Daou, Habiba Nouali, Maria-Laura Foddis, Joumana Toufaily
Activated Montmorillonite was applied for the sorption of pyridine as a health-toxic substance. Fourier-transform Infrared spectroscopy (FTIR), zeta potential analysis, thermogravimetric analysis (TGA), N 2 physisorption analysis and X-ray diffraction (XRD) m…
René Blaise Ngouateu Lékéné, Julius Ndi Nsami, Asma Rauf, Daouda Kouotou, Placide Desiré Belibi Belibi, Muhammad Iqbal Bhanger, Joseph Ketcha Mbadcam
Egusi seed shells (ESS) were used as precursor for the preparation of two activated carbons (ACs) following H 3 PO 4 and ZnCl 2 activation. The effect of factors controlling the preparation of ACs such as chemical activating agent concentration (2 - 10 M), ac…
Charity Uren Zang, Alexander Asanja Jock, Hassan Ibrahim Garba, Yarkasuwa Istifanus Chindo
Balanites aegyptiaca has multiplicity of uses and almost every part of the plant is useful including its flowers, leaves, bark, root and fruit. In this study, oil from Desert date ( Balanites aegyptiaca ) kernel seed was extracted, analyzed and used in the fo…
Peter van der Weg
Peter Debye and Erich Hückel had developed a theory for the ionic activity coefficients in dilute solutions of strong electrolytes some 95 years ago [1]. Their limiting law still stands and is confirmed as close to reality in many experiments. In a previous a…
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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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