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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…
Zaher Barghouthi, Sameer Amereih
New simple and sensitive spectrophotometric determination of fluoride in drinking groundwater has been developed using aluminium-resorcin blue complex. The method is based on the reaction of fluoride with the coloured complex to produce colourless aluminium f…
Gang Li, John D. Brockman, Shih-Wen Lin, Lance A. Schell, J. David Robertson
In public health studies limited volumes of blood are often collected and stored for future hypothesis testing. Archived samples are irreplaceable and therefore it is valuable to develop analytical techniques that require minimal sample vo-lume. This work des…
Yusai Ito, Kyoko Ishizuki, Wakana Sekiguchi, Atsuko Tada, Takumi Akiyama, Kyoko Sato, Takeshi Yamazaki, Hiroshi Akiyama
An analytical method for the quantification of residual solvents in annatto extracts, natural food colorants, was established using a static headspace gas chromatography (HSGC) coupled with a flame ionization detector (FID). As a sample diluent in a headspace…
Muhammad Saeed Arayne, Najma Sultana, Saima Sher Bahadur, Muhammad Nawaz
A rapid, fast and precise method has been developed and validated for the simultaneous determination of amlodipine with H 1 -receptor antagonists (cetirizine, fexofenadine, and buclizine) from dosage forms. The chromatography was performed on a Purospher ? St…
Leonard J. Soltzberg, Sandy Lor, Nnennaya Okey-Igwe, Richard Newman
The identification of dyes is important in research on museum artefacts as well as in forensic applications. UV-visible absorption spectroscopy cannot unambiguously distinguish dyes with similar hues, while mass spectrometry may fail to distinguish isobaric d…
Patrick Pibarot, Serge Pilard
Adulteration may consist in non authorized source of nitrogen addition to increase the protein content of some raw materials. Urea which is authorized for feed is a non nutritional source of nitrogen in food and pet food. Adulteration of food or pet food raw…
Chiye Tatebe, Takashi Ohtsuki, Noriko Otsuki, Hiroki Kubota, Kyoko Sato, Hiroshi Akiyama, Yoko Kawamura
A method to extract and analyze Sudan I present in Sunset Yellow FCF (SYF) products was developed and validated. The method included the simple extraction of Sudan I from the SYF product using water, acetonitrile, and ethyl acetate and high-performance liquid…
Refat F. Aglan, Gehad G. Mohamed, Hala A. Mohamed
A new chemically modified carbon paste electrode for cesium(I) ion determination based on potassium zinc hexacyan-oferrate (PZHCF) as an ionophore was prepared. The electrode exhibits a Nernstian response for Cs(I) ions over a wide concentration range from 1…
Carmen Flores Pérez, Juan Luis Chávez Pacheco, Janett Flores Pérez, Hugo Juárez Olguín, Blanca Ramírez Mendiola, Raquel García Álvarez, José Francisco González Zamora, Ángel Changin Guerra
Aim: To develop an HPLC method to quantify midazolam in a new oral formulation for pediatric use. Methods: The stability of the new formulation was evaluated at different storage conditions and a preliminary assay of relative bioavailability was carried out i…
Anandan Anitha, Shunmugham Loghambal, Lakshmanan Rajendran
A mathematical model of an amperometric biosensor with the substrate inhibition for steady-state condition is discussed. The model is based on the system of non-stationary diffusion equation containing a non-linear term related to non-Michaelis–Menten kinetic…
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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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