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73 results for “ammonium”
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Research ArticleOpen accessEvery word in the titleElectrical Studies of Carboxy Methycellulose-Chitosan Blend Biopolymer Doped Dodecyltrimethyl Ammonium Bromide Solid ElectrolytesNur Yasmin Abu Bakar, Nur Hafiza Mr. Muhamaruesa, Nur Ain Bashirah Aniskari, Mohd Ikmar Nizam Mohamad IsaIn this study, a polymer-blend system consist of Carboxy Methylcellulose (CMC)-Chitosan (CS) as blend biopolymer host and doped with various composition of Dodecyltrimethyl Ammonium Bromide (DTAB) were successfully prepared via solution casting techniques. The new system has been analyzed through Electrical Impedance Spectroscopy (EIS) from temperature 303 K until 393 K to determine the conductivity of biopolymer electrolytes in the … …American Journal of Applied Sciences, Vol. 12, Issue 1 · 5 Mar 2015 · 7,649 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCOLORIMETRIC DETERMINATION OF CEFQUINOME SULPHATE IN BULK AND DOSAGE FORM USING AMMONIUM MOLYBDATEShaza Wageialla Shantier, Elrasheed Ahmed GadkariemThis study was designed to develop two colorimetric methods for the determination of Cefquinome Sulphate (CS) in bulk and dosage forms using two different concentrations of molybdenum solution. The developed methods were based on the oxidation of CS with 2% ammonium molybdate, in the presence of sulphuric acid, producing a green colored product with λmax at 409 nm (Method I) … …American Journal of Applied Sciences, Vol. 11, Issue 2 · 20 Dec 2013 · 7,051 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleExtraction of Ca (II) and Mg (II) from Hydrochloric Acid Solutions by N, N-Dioctyl-1-Octan Ammonium Chloride in Methyl Isobutyl KetoneArben Haziri, Fatmir Faiku, Imer Haziri et al.Problem statement: Amines as organic molecules are able to form complexes with metals ions and this is the reason why we can use them to extract metals ions from hydrometallurgical solutions. Approach: Based on that, we have investigated the extraction of Calcium and Magnesium with N, N-dioctyl-1-octan ammonium chloride from the mixture of elements (Ca and Mg) prepared in artificial … …American Journal of Applied Sciences, Vol. 9, Issue 7 · 8 Jun 2012 · 7,592 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Mixing Urea with Humic Acid and Acid Sulphate Soil on Ammonia Loss, Exchangeable Ammonium and Available NitrateMohd Taufik Mohd Yusuff, Osumanu Haruna Ahmed, Nik Muhamad Ab MajidProblem statement: Ammonia loss due to rapid hydrolysis of urea in soil following surface application can be substantial. Ammonia loss in agriculture is estimated to be 1 to 60%. This laboratory study compared the effect of three different urea-humic acid-acid sulphate soil mixtures on NH3 loss and soil ammonium and nitrate contents, with loss from surface applied urea without additives … …American Journal of Environmental Sciences, Vol. 5, Issue 5 · 31 Oct 2009 · 8,906 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Organic Based N Fertilizer on Dry Matter (Zea mays L.), Ammonium and Nitrate Recovery in an Acid Soil of Sarawak, MalaysiaSusilawati Kasim, Osumanu Haruna Ahmed, Nik Muhamad Ab. Majid et al.Problem statement: Exchangeable ammonium (NH4+) could be recovered by humic and fulvic acids from humic substances. The ability of these acids in fixing or retaining NH4+ has been demonstrated in many findings and reports. Both acids could affect the plant growth, nutrients uptake by enhancing photosynthesis rate and root growth among others. Thus, in this study, the effect of both … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 8,244 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffects of Wheat Bran, EM Bacteria, Ammonium Nitrate and Fungal Additives on Fermentation and Forage Quality of Rice Straw SilageBin Yang, Jiahuan Liu, Dongmei Ma et al.The global ruminant industry is constrained by a persistent shortage of high-quality roughage, thus rendering the bioconversion of agricultural residues, such as rice straw, a critical priority. Nevertheless, the high lignification, silicification, and nitrogen deficiency of rice straw pose significant biological barriers to traditional ensiling. This study investigated the impact of various additives on rice straw silage quality. Six treatments … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 3 · 30 Sep 2026 · 642 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleKnowledge Representation of Ion-Sensitive Field-Effect Transistor Voltage Response for Potassium Ion Concentration Detection in Mixed Potassium/Ammonium Ion SolutionsWan Fazlida Hanim Abdullah, Mohd Alaudin Mohd Ali, Md Shabiul Islam, Masuri OthmanProblem statement: The Ion-Sensitive Field-Effect Transistor (ISFET) is a metal-oxide field-effect transistor-based sensor that reacts to ionic activity at the electrolye/membrane/gate interface. The ionic sensor faces issue of selectivity from interfering ions that contribute to the sensor electrical response in mixed solutions. Approach: We present the training data collection of ISFET voltage response for the purpose of post-processing stage neural … …American Journal of Applied Sciences, Vol. 7, Issue 1 · 31 Jan 2010 · 7,816 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Delaying Sporulation by Addition of Ammonium Sulphate on the Fermentation of Palm Kernal Cake Based Substrate by Aspergillus nigerK. H. Swe, A. R. Alimon, M. RaminProblem statement: Asexual sporulation is a common reproductive mode for a diverse group of fungi and the ultimate limiting factor in fungal biomass production. Approach: Delaying sporulation may increase the biomass in terms of mycelial production and the same time increase production of enzymes. Results: In order to delay the sporulation different levels of ammonium sulphate (10, 12 and 14%) … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 4 · 31 Dec 2009 · 8,399 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePreparation of WO3 Nanoparticles Using Cetyl Trimethyl Ammonium Bromide Supermolecular TemplateNilofar Asim, S. Radiman, M. Ambar bin YarmoProblem statement: WO3 is one of the most interested metal oxides because of its application as catalysts, sensors, electrochromic devices, ceramic, solar cell, pigments and so on. More investigation is needed to find the good and low cost method for preparation of WO3 nanoparticles with uniform morphology and narrow distribution using a surfactant mediated method. Approach: In this study, the … …American Journal of Applied Sciences, Vol. 6, Issue 7 · 31 Jul 2009 · 7,699 accessesView PDFCite
Research ArticleOpen accessIn the keywordsEffects of Enriching Nitrogen and Phosphorus on the Growth of Sargassum Podacanthum Cultured in Potassium-Fortified Inland Saline WaterHa Thi Thu Bui, Trong Quoc Luu, Ravi FotedarPotassium-fortified inland saline water (K+ISW) has shown potential for growing marine species, including seaweed species. The response of a brown seaweed species, Sargassum podacanthum, to nitrogen and phosphorus enrichments were evaluated by culturing the species for 84 days in K+ISW and comparing it with Ocean Water (OW). The culture media were enriched weekly with ammonium chloride and sodium dihydrogen phosphate, … …American Journal of Applied Sciences, Vol. 15, Issue 3 · 6 Apr 2018 · 7,747 accessesView PDFCite