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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…
Cléia Rocha de Sousa Feitosa, Robério Costa da Silva, Raimundo Braz-Filho, Jane Eire Silva Alencar de Menezes, Sônia Maria Costa Siqueira, Francisco José Queiroz Monte
A mixture of new ceramides (1, 2, 3, 4 and 5) together with a binary mixture of ceramides with long chain alkyl (6 and 7), triterpenoid (10) and steroids (11 and 12) have been isolated from bark of the fruits and of the stems of Luffa operculata (Cucurbitacea…
Stefanie A. Bragg, Zi-Ling Xue
Dry ashing is an established method. Ashing whole blood samples are, however, often difficult to carry out with significant sample loss, and the procedure is not well documented. A new procedure has been devel- oped and optimized to dry-ash whole blood sample…
Gajanan Niranjan Chaudhari, Vijay Ramkrishna Chinchamalatpure, Sharada Arvind Ghosh
The Gallium Nitride (GaN) layers grown on silicon substrates by electron beam evaporation technique. X- ray diffraction revealed that polycrystalline GaN was obtained indicating the enhance crystallinity of the films with annealing temperature at 600<sup>o</s…
Manjeet Singh, Rama Nand Rai, Uma Shankar Rai
The phase equilibrium data on organic analog of the nonmetal-nonmetal system, involving 2-cyanoacetamide (CA)―4-chloronitrobenzene (CNB), show the formation of a monotectic (0.10 mole fraction of CNB) and a eutectic (0.98 mole fraction of CNB) with a large mi…
José Ricardo Lima Bispo, Sandro Navickiene, Haroldo Silveira Dórea
The presence of polycyclic aromatic hydrocarbons (PAH) in produced water is of environmental concern due to their toxic properties. PAH analysis in complex samples requires pre-treatment to enrich the fraction con- taining analytes, and eliminate matrix inter…
Behrooz Majidi, Farzaneh Shemirani, Rouhollah Khani
This paper describes a dispersive liquid–liquid microextraction (DLLME) procedure using room temperature ionic liquids (RTILs) coupled with flame atomic absorption spectrometry detection with microsample intro-duction system capable of quantifying trace amoun…
Rajeev Kumar R. Singh, Manapragada V. Rathnam, Sangeeta J. Singh, Raju V. K. Vegesna
This research paper describes simple analytical method for determination of Camylofin dihydrochloride and Nimesulide in tablet formulation by Gas chromatography method. Benzoic acid was used as internal standard. Validation was carried out in compliance with…
Ahmed B. Eldin, Abdalla A. Shalaby
For several years, near-infrared spectroscopy (NIRS) has become an analytical technique of great interest for the pharmaceutical industry, particularly for the non-destructive analysis of dosage forms. The goal of this study is to show the capacity of this ne…
Changming Zhang, Shaoqing Guo, Changgen Huang
An analysis method based on multi-instruments analysis technique coupled solvent extraction to determine compositions of unknown cosmetic were established. The multi-instruments involve high-performance liquid chromatography (HPLC), X-ray diffraction (XRD) an…
Kenneth C. Madu, P. O. Ukoha, A. A. Attama
A spectrophotometric method for the assay of lamivudine in pure form and in dosage form was developed in this study. The method was based on charge-transfer complex formation between the drug, which acted as n-donor while chloranilic acid and 2,3-dichloro-5,6…
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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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