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Simple Determination of Sugars in Cigarettes
Simple sugars are an important constituent of tobacco, varying between almost 0 and 20% on weight of tobacco. Some manufacturers add sugars to the natural content in tobacco. In the present report, a simple and fast method is presented to analyze the concentrations of the sugars sucrose, glucose and fructose in cigarettes. After.. Read More
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Resorcinol is dihydroxy benzene and the stem extracted resorcinols have medicinal importance and is widely used as antiseptic and disinfectant. Electron transfer plays a fundamental role in governing the pathway of chemical reactions. Generally voltammetry is the electrochemical technique in which the current at an electrode is .. Read More
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This study was conducted in Maiduguri Metropolis of Borno State, Nigeria. The levels of fluoride, cadmium, arsenic, lead and nickel were determined in sachet, tap and ground water. The levels of fluoride and some heavy metals were also determined in blood and urine samples with respect to age groups. The sample collection and pr.. Read More
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The activity concentrations of 210Po and 210Pb in atmospheric particulate samples collected in South Italy (Taranto) in Nov 2008 and in May 2009 were determined. The corrected activity concentrations of 210Pb and 210Po in sampling time were in the range of 11.9-122 μBq m-3 and of 300-1105 μBq m-3, respectively. The 210Po/2.. Read More
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Current Methods for Analysis of Enzymatic Peptidyl-tRNA Hydrolysis
Understanding peptidyl-tRNA and the enzymes responsible for recycling them has come from the ability to detect and quantify enzymatic peptidyl-tRNA hydrolysis. The methods available to study removal of peptides from tRNA have evolved considerably. Radioactive [14C] amino acids were first implemented to monitor cleavage of the pe.. Read More
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Counterfeit Tablet Investigations: Can ATR FT/IR Provide Rapid Targeted Quantitative Analyses?
Counterfeit medicines are now a global public health problem. In developed countries up to 1% of medicines are reported to be counterfeit whilst in developing countries the level is ~30-40%. In this research the potential of Attenuated Total Reflection (ATR) FT/IR techniques to provide rapid quantitative analyses of suspect tabl.. Read More
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A New Enhanced, Rapid and Precise Sample Preparation Protocol for Label-free Protein Quantification
Label-free quantification using liquid chromatography-mass spectrometry (LC-MS) has now become a widely accepted analytical approach for the comparison of differential protein expression levels across multiple samples. One major concern of current label-free strategies is the technical variability introduced at multiple points d.. Read More
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Powder XRD Technique and its Applications in Science and Technology
The review presents a brief overview of advanced X-Ray Powder Diffraction Technique. It is an indispensable method of material investigation, characterization and quality control. It has many salient features and advantages that promote its wide range use. It has numerous applications that cater to industrial and academic resear.. Read More
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This paper presents a flow-based ultrasensitive capacitive biosensor for the detection of bacterial DNA. The used sensor chip consists of a gold electrode, insulated with a polytyramine layer and covalently tagged with a DNA capture probe. The hybridization of target DNA to the capture probe resulted in sensor response. The sens.. Read More
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Absorption Spectral Analysis of Zn2+ or Cu2+ Coordination with Human Serum Albumin using Zincon
Human serum albumin (HSA) is used for mammalian embryo culture in assisted reproductive technology (ART) to adjust osmotic pressure and growth factor concentration in culture media. In human serum, transition metal ions, particularly Zn2+, bind to the coordination sites of HSA; thus analyzing the binding of these metal ions may .. Read More
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In this study, the use of organised surfactants assemblies to enhance the spectrophtometric determination of palladium in environmental samples is thoroughly investigated. Phenanthraquinone monophenyl thiosemicarbazone (PPT), an exceptional color-forming chelating agent, combines to Pd (II) to form a slightly soluble complex in .. Read More
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The aim of this paper was to find some connections between elemental composition of human hair and such illnesses as kidney stone, cholelithiasis, hypertension and diabetes to assess whether hair could be a reliable marker of the above mentioned health problems. The elements were identified by Scanning Electron Microscopy and En.. Read More
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A novel series of 1,2,4-triazole derivatives, have been synthesised. All synthesised compounds were screened for their antimycobacterial activity against Mycobacterium tuberculosis and antimicrobial activities against various bacteria and fungi. Among studied derivatives, 4-methyl-1-morpholinmethyl-2,4-dihydro-3H-1,2,4-tria.. Read More
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Infra-red Spectral analysis of Taxol Produced by Different Species of Pestalotiopsis
Twenty species of Pestolotiopsis were isolated from different hosts and screened for the production of an anticancer drug taxol. Taxol production was confirmed in all the 20 fungi by ultra violet (UV) spectroscopic analysis, and Infra-red Spectrum analysis (IR). The taxol produced by the fungi was compared with that of standard .. Read More
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GATES as the Unique Tool for Simulation of Electrolytic Redox and Non-Redox Systems
The Generalized Approach to Electrolytic Systems (GATES), based on physical (charge conservation), physicochemical (conservation of elements) and chemical (mass action) laws is the best theory applicable for computer simulation of equilibrium, non-equilibrium and metastable, mono- and polyphase electrolytic redox and non-redox s.. Read More
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The Future of Metabolomic Profiling in Population-Based Research: Opportunities and Challenges
Metabolomics is an approach that employs technologies to measure small molecule metabolites in biological samples, thus providing epidemiologists and other investigators with a means to discover biomarkers of disease risk, diagnosis, and prognosis. To advance the field of metabolomics, the National Institutes of Health (NIH.. Read More
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Organic solvents such as Methanol, Isopropyl alcohol and Dichloromethane frequently used in sustained release or controlled release dosage form in pharmaceutical industry for coating. The good choice of solvent for coating of modified release dosage form is Methanol, Isopropyl alcohol and Dichloromethane. A selective Gas Chromat.. Read More
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In accordance with national and international regulatory standards, namely ISO/IEC 17025, the validation of chromatography methods is becoming necessary. This study provides an optimized and fully validated reversephase high performance liquid chromatography (RP-HPLC) assay with ultra-violet (UV) detection for the measurement of.. Read More
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Cholic acid is a primary bile acid synthesised from cholesterol in liver. Apart from being major catabolic products of cholesterol bile acids facilitates absorption of fats in intestine. A selective, sensitive MRM based liquid chromatography/ tandem mass spectrometry method has been developed and validated for the estimation of .. Read More
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A simple, rapid and accurate HPTLC-MS method was developed for the simultaneous quantification of asaranin (AS) and sesamin (SM), the two epimeric furofuran lignans in Piper chaba (Piperaceae) fruit extracts obtained by cold percolation (PER), Soxhlet extraction (SOX), ultrasound assisted extraction (USAE), accelerated solvent e.. Read More
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