An Isocratic Water Mobile Phase HPLC Analysis of Melamine and Its Related Analogues

The author describes a reserved-phase high performance liquid chromatographic method for detecting melamine (MEL) and related analogues, cyanuric acid (CYA), ammeline (AML), and ammelide (AMD), using a 100% water mobile phase. Chromatographic separation was performed an Inertsil® ODS-4 (250 × 4.6 mm, 5 μm) with a water mobile phase and a photodiode-array detector. The monitoring
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The purpose of this study was to compare the pre-treatment and post-treatment serum antioxidants levels in acute periradicular abscess, with pain. Thirty-two patients (18 males, 14 females) with acute and painful endodontic abscesses were included in this study. Before treatment, patients had severe symptoms of inflammation, but at the end of treatment no symptoms of
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Water is critical for all life on the planet. Rapid industrialization and urbanization has caused India to face a water crisis since it has only 4 percent of the world’s water resources. In order to resolve the crisis, India has to look for alternative water resources which may include rainwater harvesting, grey water and sewage
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An explorative investigation was conducted for the feasible use of natural coagulants in the treatment of textile effluent in Erode district of Tamil Nadu (India). In this article, three natural coagulants namely Moringa oleifera, Tamarina indica, Strychonomous potatorum of 10, 20, 40, 60 and 80 mL dosages were used to spot the suitable one as
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Chemical variability of essential oils (EOs) in peels of C. reticulata ‘Dahongpao’, a cultivar of C. reticulata Blanco (mandarin) from the same source was investigated by gas chromatography-mass spectrometry (GC–MS) compiled with Automated Mass Spectral Deconvolution & Identification System (AMDIS). Peels were collected once a month during July-December in 2011 from the identical area. The
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Periapical alterations or irritations resulting from root canal therapy may be caused by overinstrumentation, infection or adverse effects from substances liberated from root canal filling materials. Chemothera-peutic agents containing formaldehyde are commonly used in the treatment of dental disease. Formaldehyde is known to local irritation and skin sensitization following acute and subacute exposure. The objective
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Densities and Ultrasonic velocities of glycerin and dextrose in Na2CO3 and NaHCO3 buffer solutions have been determined experimentally at 308 and 313K. From these experimental results the adiabatic compressibility Ks, acoustic impedance Z, intermolecular free length Lf, relative association RA, available volume Va and hydration number Hn have been calculated. The results are interpreted in
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The waste from different industries and domestic waste is the serious environmental problems. It is necessary to remove the pollutant by using efficient process. In this work the naturally available chicken eggshell waste was used to remove the methylene blue dye. The use of low cost, naturally available and eco-friendly adsorbents have been investigated an
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The concept of sequential cytotoxicity indicates the successive release of two or more cytotoxic compounds causing grater toxicity to the neoplasm than normal cell. This hypothesis is evaluated by designing a series of compounds of 2, 6 diphenyl piperidine-4-one. Recently for the development of novel cytotoxic and anticancer agents, different series of compounds have been
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In the paper the processes of carboammophos and carboammophos potassium preparation based on the ammonization of the samples by evaporated wet phosphoric acid (WPA) (35.92; 40.85; 46.41; 51.07% P2O5) to pH = 5.3 (to obtain ammophos pulp) and pH = 7.0 (to obtain diammophos pulp) with subsequent addition of 70% solution of urea and crystalline
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