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137 articles for “Estimation of concentration”
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Stability-Indicating Rp-Hplc Development and Validation for the Estimation of Lercanidipine Hydrochloride Content in Tablet Dosage Form
Abstract: A sensitive, stability-revealing, and easy reverse-phase high-performance liquid chromatographic (RP-HPLC) technique was developed and rationalized to be in a position to determine Lercanidipine hydrochloride in ingested dosing preparations. It was separated by chromatography on a C 18 column using a mobile phase containing 10 mM potassium dihydrogen phosphate buffer and methanol (20:80, v/v; pH 4.0) at a flow rate of 1.0 mL/min and UV detected at 258 nm. The retention …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 13, Issue 1, 2026 · pp. 17–26 Read article
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Analysis and Testing Methods for Solar Thermal Evacuated Tube Collector: A Review
Abstract: Evacuated tube receiver used with parabolic trough collector can be characterized in terms of their heat loss and their optical efficiency. The optical efficiency of the collector involves reflectivity, transmissivity, tracking accuracy, shading by receiver tube surface, shape and absorptance of the material used. On the other hand, receiver tube heat loss includes conductive, convective and radiative losses. Here, in case of evacuated tube, major losses are through radiation, the …
Published in Journal of Thermal Engineering and Applications · Vol. 4, Issue 1, 2017 · pp. 1–4 Read article
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Development and Validation of RP-HPLC Method for Estimation Ertugliflozin in Its Bulk and Tablet Dosage Form
Abstract: Background: This study developed and validated a new, sensitive, appropriate, clear, accurate, and robust reversed-phase high-performance liquid chromatography (RP-HPLC) method for determining safinamide in bulk medication and tablet formulations. An HPLC procedure using a UV detector and the Openlab EZchrome workstation programme was used to separate the samples, as well as a Kromasil C18 (250 mm × 4.6 mm i.d.) 5 μm. At a flow rate of 1.0 mL/min, methanol …
Published in Research & Reviews: A Journal of Drug Design & Discovery · Vol. 9, Issue 1, 2022 · pp. 8–20 Read article
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Estimation and Study of Contamination by Elements (Ni, Cu, Mg, Sn) in Dust of Areas near Fuel Stations in Najaf Governorate
Abstract: The research focused on studying and determining the levels of pollution in dust collected from various stations in the city of Najaf near fuel situations represented by four Fuel Situations (Soor Alnajaf Situation, Reebal Situation, Alkarar Situation, Alqudus Situation ), for this we selected 4 situations for current study, to determine the levels of pollution and compare them with the internationally permitted levels of elements (nickel, copper, and magnesium). Air …
Published in International Journal of Pollution: Prevention & Control · Vol. 3, Issue 2, 2025 · pp. 6–14 Read article
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Optimisation of Biodiesel synthesis process from various edible oils using KOH and NaOH as homogeneous catalysts
Abstract: In the present experimental study, an optimization of biodiesel production from different kinds of edible oils (Palm oil, Cotton-seed oil and Sunflower oil) using KOH & NaOH as homogenous catalyst has been investigated by one step transesterification method. The research study was conducted into two parts. In the first experimental study, different types of edible oils (Sunflower oil, Cottonseed oil and Palm oil) have been optimised using KOH and NaOH …
Published in Emerging Trends in Chemical Engineering · Vol. 11, Issue 2, 2024 · pp. 69–77 Read article
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Optimization Study by Response Surface Methodology and Artificial Neural Network on the Culture Parameters of Citric Acid Bioproduction from Sweet Potato Peels
Abstract: In the cause of this research work, two steps enzymatic hydrolysis of sweet potato peel was carried out respectively. The effect of α-amylase dose, reaction time, and reaction temperature and biomass weight on glucose concentration was investigated carefully. The response surface methodology (REM) predicted the highest reducing sugar concentration at liquefaction to be 74 g/L, at the following optimized conditions; temperature of 45°C, α-amylase dose 0.7 %v/v, biomass weight 22.345 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 30–38 Read article
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Study of Object Oriented Systems: A Review
Abstract: AbstractThe motivation behind this paper is to concentrate a product item that requires effective measures to precisely screen the inward programming quality, for example, coupling and union, over the span of programming advancement life cycle. Programming measurements have been generally and effectively used to gauge such interior quality characteristics for protest situated programming frameworks. Coupling is characterized as a standout amongst the most fundamental subjective measures for measuring the execution …
Published in Recent Trends in Programming languages · Vol. 4, Issue 1, 2017 · pp. 16–19 Read article
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Formulation and Evaluation of Gastro retentive Effervescent Floating Tablets of Famotidine: Effect of Formulation Variables and In Vitro In Vivo Evaluation
Abstract: Gastro retentive effervescent floating tablets of famotidine were developed in an attempt to sustain the drug release as well as to prolong the presence of dosage form in the stomach or upper small intestine until drug is completely released in desired period of time from the formulation with special emphasis to the effect and concentration of different polymers on drug release and floatation. Tablets were prepared by direct compression method …
Published in Research & Reviews: A Journal of Drug Formulation, Development and Production · Vol. 2, Issue 3, 2015 · pp. 13–29 Read article
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Eugenol Prevents Sodium Nitrate-induced Altered Antioxidant Status of Spermatozoa: An In Vitro Study
Abstract: Background: High level of nitrate (NO3) induces oxidative stress which affects the male and female reproductive system. In this regard, there is a great concern for the prevention of NO3-induced oxidative stress in the reproductive system by using herbal products. Eugenol is one such natural product found in clove extracted from cloves (Syzygium aromaticum) and is known for its antioxidant, anti-nociceptive, anti-inflammatory, and anti-apoptotic properties. Aim and Objectives: The present …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 12, Issue 2, 2022 · pp. 1–8 Read article
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Biochemical Assays of Crude and Purified Oxycarotenoid Extracts Isolated from Coriander Leaves and their Effect on Oxidative Stability of Oils by Rancimat Assay
Abstract: Antioxidants are important substances in the fight against the damage done by free radicals that are produced by oxidative stress. Antioxidants are available in various forms as dietary supplements/synthetic forms. Because of their toxicity and side effects, the extensive use of many of these synthetic antioxidants is ruled out. Most nutritionist agrees that, the natural food is the best source of antioxidants. Dietary antioxidants have the ability to scavenge free …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 8, Issue 1, 2018 · pp. 1–10 Read article
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Groundwater Contamination in Punjab Due to High Levels of Nitrate (NO3 - ) and Its Health Hazards: A Preliminary Report
Abstract: Punjab is facing a crisis due to high levels of heavy metals and nitrate concentration in groundwater of several districts of Punjab. The highest level of NO3 content of 2553 mg/l has been recorded in two villages of Patiala district. The concentration of NO3 in groundwater of seven districts of Punjab has been studied. The maximum content values range from 78.20 in Pathankot to 2553 mg/l in Patiala district, which …
Published in Research and Reviews: A Journal of Toxicology · Vol. 12, Issue 3, 2022 · pp. 18–26 Read article
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Semi-quantitative Event Specific Detection of Bt Maize (Event MON 810) using Real-Time PCR with SYBR Green Ι Chemistry
Abstract: The objective is this work is to do semi-quantitative analysis for Bt maize (event MON 810) using conventional Polymerase Chain Reaction (PCR) and Real Time PCR (SYBR green chemistry) from the fresh maize samples chosen arbitrarily from various locations. The protocol for extraction of good quality genomic Deoxyribonucleic acid (DNA) was standardized without the use of Liquid nitrogen. The DNA used for further studies were obtained by using standardized protocol. …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 2, Issue 3, 2012 · pp. 25–34 Read article
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Organic Phase Speciation of 36% Tri-Iso Amyl Phosphate/N-Dodecane Solvent during Nitric Acid Extraction
Abstract: Several solutions of 36% TiAP/n-dodecane solvent were equilibrated with different concentrations of aqueous nitric acid solutions at 298.15 K at a phase ratio of unity. The resultant equilibrated aqueous and organic solutions were analyzed for acidity. A three-solvate model with molecular HNO3 based mechanism was assumed for nitric acid extraction by TiAP. This model was analogous to the 3-solvate model for nitric acid extraction by TBP, recently reported by authors. …
Published in Journal of Nuclear Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 28–34 Read article
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Impact of Groundwater Pollution on Carcinogenic and Non-Carcinogenic Health Effects: A Review
Abstract: Groundwater is a critical source of drinking water in many regions worldwide, particularly in South and Southeast Asia, where dependence on untreated groundwater remains high. However, increasing groundwater contamination poses serious risks to human health. This review synthesizes recent peer-reviewed studies to examine the sources, distribution, and health impacts of major groundwater contaminants, with a focus on both carcinogenic and non-carcinogenic risks. Emphasis is placed on fluoride, nitrate, chromium, and …
Published in Research & Reviews : Journal of Ecology · Vol. 15, Issue 1, 2026 · pp. 40–46 Read article
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Analysis of benzoic acid in fruit juice and some soft drinks in Benghazi market by UV- spectrophotometric method
Abstract: The utilization of preservative substances is extensive in various industries, with particular prominence in the food industry. In this study, we investigated the estimate of benzoic acid as a preservative substance, which is widely used to preserve juices and carbonated beverages. Fifteen samples were collected from some markets in Benghazi . The spectrophotometer was utilized to take measurements at a wavelength of 228nm The pH value was measured using a …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 15, Issue 1, 2024 · pp. 75–80 Read article
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Study on the Wastewater Characteristics of the Kitchen Effluent
Abstract: The implementation of low-cost, simple mitigation measures are required for the timely control and sustainable management of pollution problems in developing countries. This study was designed to investigate the wastewater characteristics of the kitchen effluent, and to design a low-cost wastewater treatment plant for the kitchen based on the data obtained. For the wastewater quality analysis of the kitchen effluent, various composite samples were collected from the local region. The …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 1, 2015 · pp. 1–7 Read article
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An Analysis of Machining Parameters for Metal Matrix Composite
Abstract: The electro-discharge machining analysis of hybrid Composite is presented in this work. Variables are chosen for the input process parameters. The material removal rate is acknowledged as an output parameter, together with the current, graphite and silicon carbide percentage and pulse on time. We used the Taguchi Method to conduct our experiments. To create the theoretical model and look into how process parameters affect the rate at which material is …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 76–85 Read article
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Effect of Soya bean Intervention on Lipid Profile of 40–60 Year Female Undergoing Coronary Intervention
Abstract: Diet and life style choices are major factors contributing to the risk of CAD which is responsible for more deaths in the whole world. It is well known that the modification on lipid concentration is a useful approach to decrease CAD mortality. Soybean contains lean vegetable protein, fibre and bioactive substance—Isoflavone. So it has got attention as cardio protective substance. Isoflavones may have lipid independent coronary benefits, such as enhancing …
Published in Research and Reviews: A Journal of Health Professions · Vol. 8, Issue 3, 2018 · pp. 80s–86s Read article
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Trace Elements in Libyan Cereals and Their Health Risk Implications
Abstract: Trace elements in cereals and cereal products which are an important food in the human diet. The present investigation was carried out to determine concentration of trace elements and evaluate the potential health risk of metal to humans through consumption of cereal. Concentrations of ten trace elements (As, Cd, Cr, Cu, Mn, Mo, Ni, Pb, Se and Zn) were then used to calculate the health risk for Libyan population. Their …
Published in Research & Reviews : Journal of Food Science & Technology · Vol. 7, Issue 1, 2018 · pp. 29–37 Read article
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Prediction of Air Quality Index (AQI)
Abstract: AbstractGrowing economy of a country has its pros and cons. Swift development of industries on an extensive scale has led to immense growth in air pollution. It happens to be elementary root of maladies and early deaths around the world. The UN responsible agency for international public health has estimated that outside atmosphere consisting of air pollution takes about three million people’s lives every year. Therefore, contamination amount in air …
Published in Journal of Electronic Design Technology · Vol. 11, Issue 2, 2020 · pp. 28–34 Read article