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22 articles for “Sample preparation”
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Major Analytical Problems in Current Pharmaceutical Drug Products
Abstract: Substances of pharmaceutical drug products go through thorough analyses to check the safety, efficacy as well as the quality of the final product. There are a number of shortcomings even though much has been done in the analytical methods used in recalls. Such challenges are those concerning method validation, sensitivity, specificity, reproducibility, and regulation. This article on major analytical problems in current pharmaceutical drug products outlines major limitations in the …
Published in International Journal of Analytical and Applied Chemistry · Vol. 11, Issue 1, 2025 · pp. 29–39 Read article
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Quantification of Morphine, Codeine, and Dihydrocodeine in Carissa carandas Leaves and Fruit Using LC-MS/MS: The Impact of Drying on Alkaloid Concentration
Abstract: This study presents a method for quantifying morphine, codeine, and dihydrocodeine in Carissa carandas (Karonda) leaves and fruit, employing morphine-D3 as an internal standard (1 µg/mL) to ensure accuracy. Samples are prepared at 25 ng/mL and extracted using solvent techniques, with an optional solid-phase extraction step to mitigate matrix effects. Quantification is conducted via LC-MS/MS, providing robust sensitivity. Results show that drying concentrates these alkaloids, particularly morphine in fruit, due …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 1, 2025 · pp. 49–61 Read article
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Wettability of carbon fibers with resin matrices from dynamic contact angle measurements
Abstract: Wettability is the property that quantifies the propensity of a solid surface (carbon fiber) to be covered by a liquid (resin). For a wettable solid, the solid-liquid contact is favoured and as a result the liquid spreads on such surface of the solid. Spreading of the liquid on the solid surface is primarily driven by the adhesive forces between the liquid and the solid, while the inter molecular cohesive forces …
Published in International Journal of Composite Materials and Matrices · Vol. 11, Issue 2, 2025 Read article
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Three Dimensional (3D) Structure and Morphology ofCarbon Fibers from X-Ray Microscopy (XRM) Analysis†
Abstract: X-ray microscopy is an elegant chemical imaging technique that bridges the gap between lightmicroscopy and electron microscopy. Vital information on the chemical state (valency, surfacefunctionality), chemical composition, three-dimensional (3D) chemical structure (order, disorder,rupture), and chemical imaging can be obtained from X-ray microscopy. In the current originalresearch article, X-ray microscopy is used as a characterization tool to examine the microstructuralfeatures of commercial carbon fibers. Pitch-based (NX100) and polyacrylonitrile (PAN)-based(T700SC) CFs chosen …
Published in International Journal of Composite Materials and Matrices · Vol. 10, Issue 2, 2024 · pp. 23–32 Read article
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Establishment of a Sensitive LC-MS Method for Pharmacokinetic Evaluation of Decitabine and Cedazuridie in Rat Plasma
Abstract: A simple, rapid, and highly sensitive liquid chromatography–mass spectrometry (LC–MS) method was successfully developed and validated for the simultaneous determination of Decitabine and Cedazuridine in plasma matrices. The method demonstrated excellent linearity across the selected calibration range, with correlation coefficients (R²) consistently exceeding 0.999 for both analytes, indicating strong analytical performance. Method validation was carried out in accordance with ICH Q2(R2) and US FDA bioanalytical method validation guidelines, ensuring compliance …
Published in International Journal of Green Chemistry · Vol. 12, Issue 1, 2026 · pp. 34–42 Read article
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Establishment of a Sensitive LC-MS Method for Pharmacokinetic Evaluation of Decitabine and Cedazuridie in Rat Plasma
Abstract: Abstract A simple, rapid, and highly sensitive liquid chromatography–mass spectrometry (LC–MS) method was successfully developed and validated for the simultaneous determination of Decitabine and Cedazuridine in plasma matrices. The method demonstrated excellent linearity across the selected calibration range, with correlation coefficients (R²) consistently exceeding 0.999 for both analytes, indicating strong analytical performance. Method validation was carried out in accordance with ICH Q2(R2) and US FDA bioanalytical method validation guidelines, ensuring …
Published in International Journal of Green Chemistry · Vol. 12, Issue 1, 2026 · pp. 34–42 Read article
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Recent Advances in Analytical and Applied Chemistry: A Comprehensive Review
Abstract: Analytical and Applied Chemistry form the backbone of modern scientific progress, connecting fundamental molecular insights with real-world industrial and societal applications. Over the past decade, these fields have undergone significant transformation, driven by the need for sustainability, precision, and efficiency. This review highlights key advancements in green analytical chemistry (GAC), high-resolution mass spectrometry (HRMS), and the incorporation of nanotechnology into chemical sensing, while also examining their broader implications in applied …
Published in International Journal of Analytical and Applied Chemistry · Vol. 12, Issue 1, 2026 · pp. 36–41 Read article
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Software Contributions to Analytical Instruments
Abstract: Laboratory instruments used in the analysis of the sample or preparation of raw materials are crucial in research and business. Such features as accurately measured values and data coverage. The coordination between software and these instruments has changed their roles, gaining flexibility, accuracy and efficiency of work. This paper aims to outline the various roles of software in the analytical process. Instruments, describing the progress in data obtaining, analysis, and …
Published in International Journal of Analytical and Applied Chemistry · Vol. 11, Issue 1, 2025 · pp. 1–15 Read article
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Utilizing Bakelite Waste as Partial Replacement for Coarse Aggregate in Concrete: A Sustainable Approach
Abstract: Abstract This research study investigates the innovative use of Bakelite waste as a partial substitute for coarse aggregate in concrete, focusing on its effects on various mechanical properties and overall performance of the concrete mix. With the growing concern over waste management and environmental sustainability, the incorporation of non-biodegradable materials, such as Bakelite, into construction practices offers a dual benefit: reducing the volume of waste destined for landfills while simultaneously …
Published in International Journal of Concrete Technology · Vol. 10, Issue 2, 2024 · pp. 23–28 Read article
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Synthesis, Characterization, Antibacterial Study and Study of Bio Properties for New Analytical Reagents
Abstract: Due to the widespread pollution of heavy metals in water and environmental samples, the pollution levels have increased. Therefore, researchers have begun working on various environmental solutions to improve the levels of these elements in environmental samples. One such solution is the preparation of analytical reagents as coordination agents and ligands to shield the elements from water and soil, thereby reducing pollution levels. In this study, new analytical reagents were …
Published in International Journal of Environmental Chemistry · Vol. 12, Issue 1, 2026 · pp. 1–11 Read article
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A Descriptive Study to Assess the Challenges Experienced During Preparation and Administration of Pediatric Medication Among Pediatric Nurses in Selected Hospitals, Bhilai, Dist. – Durg, Chhattisgarh
Abstract: Introduction: This study aimed to assess the challenges experienced by pediatric nurses during the preparation and administration of pediatric medications at a selected hospital in Bhilai. Methods: A descriptive research design was used. A total of 100 staff nurses working in pediatric wards were selected using convenience sampling. A self-structured checklist was used to assess challenges related to medication preparation and administration. Data were analyzed using descriptive and inferential statistics. …
Published in International Journal of Pediatric Nursing · Vol. 12, Issue 1, 2026 · pp. 21–26 Read article
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Comparative Study on the Effect of Acidic and Alkaline Mixing Water on Concrete Strength
Abstract: AbstractThe overall performance and durability of concrete are significantly influenced by the quality of water. The strength of the concrete is mostly influenced by the pH of the mixing water, which also affects the hydration process of the cement. This study investigates how different pH levels of water affect the compressive strength of concrete. Three types of mixing water were prepared with pH values of 3.64, 6.90, and 10.21 by …
Published in International Journal of Concrete Technology · Vol. 12, Issue 1, 2026 · pp. 7–15 Read article
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Characterization of AL-2014 TIG Welded Joints
Abstract: Abstract – This experimental study presents a comprehensive investigation into the tensile strength of TIG-welded butt joints made from Al-2014 alloy, a material that find applications in aerospace and structural engineering due to its excellent machinability and high strength to weight ratio. Welding Al-2014 alloy is challenging because it is more prone to hot cracking, oxide layer formation and thermal distortion. Therefore, it is very important to optimize welding parameters …
Published in International Journal of Manufacturing and Materials Processing · Vol. 12, Issue 1, 2026 · pp. 25–31 Read article
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A Comparative Assessment of Knowledge on Suicidal Behavior: Risk Factors and Preventive Measures among Adolescent Girls and Boys (Aged 16–19 Years) in Selected Schools of Ludhiana District, Punjab
Abstract: Background: The prevalence of suicidal behavior among adolescent students is a significant concern, as it involves the tragic loss of vital years of life. According to WHO estimates for the year 2018, around one million people worldwide lost their lives to suicide, and there were 10 to 20 times more suicide attempts. This study aimed to assess and compare the knowledge about risk factors and preventive measures related to suicidal …
Published in International Journal of Neurological Nursing · Vol. 10, Issue 1, 2024 · pp. 49–87 Read article
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A Quasi-experimental Study to Evaluate the Effectiveness of Spirulina with Lemon Juice on Anemia among Under-five Children in Selected Schools at Madurai, Tamil Nadu
Abstract: Anemia among under-five children is an important concern for the health authorities in India. Untreated anemia in children can have a serious effect on their growth. Spirulina is blue-green algae. It contains protein, iron, vitamins, and minerals. It is aimed at a quasi-experimental study to evaluate the effectiveness of spirulina with lemon juice on anemia among under-five children in selected schools at Madurai, Tamilnadu. Quasi-experimental pre-test post-test control group design …
Published in International journal of Nursing Science Practice and Research · Vol. 8, Issue 2, 2022 · pp. 50–61 Read article
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The Role of Technology Integration in Advancing Construction Education
Abstract: The construction industry is undergoing a significant transformation with the advent of technologicalinnovations, necessitating a parallel evolution in construction education. This study investigates the roleof technology integration on student learning outcomes and industry preparedness in constructioneducation, addressing a critical need to bridge the gap between academic and industry requirements.Surveys and interviews were combined in a mixed-method approach. By adopting the purposivesampling technique, a sample size of 80 respondents was obtained, …
Published in International Journal of Architecture and Infrastructure Planning · Vol. 11, Issue 1, 2025 Read article
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A Study to Assess the Knowledge Regarding Alcoholism Among Auto Drivers in a Selected Area of Rewa City with a View to Develop Information Booklet
Abstract: Indian society is gradually transitioning from a traditionally conservative framework to a more open and liberal environment, leading to changing attitudes toward alcohol consumption, particularly among youth. Alcohol use is increasingly viewed as socially acceptable, despite its serious health and social consequences. Globally, harmful use of alcohol accounts for nearly 2.5 million deaths annually, including approximately 3,20,000 deaths among individuals aged 15–29 years due to alcohol-related causes. This growing concern …
Published in International journal of Nursing Science Practice and Research · Vol. 12, Issue 1, 2026 · pp. 19–28 Read article
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Synthesis of mixed metal oxides CuO-SnO, composite nano material for the study ofefficiency of textile fabrics as UV-absorbers
Abstract: In the present study we report the synthesis and characterization of nanosized copper oxide,tin oxide and composite of copper and tin oxide and their application on cotton fabrics forUV shielding. The CuO-SnO nanocomposite material prepared under different temperature90 0 - 150 °C by using water and 1,2-ethanediol as a solvent. Copper oxide, tin oxide andcomposite of copper and tin oxide nanoparticles were then applied to cotton sample to impartsunscreen activity …
Published in International Journal of Composite and Constituent Materials · Vol. 11, Issue 2, 2025 · pp. 1–5 Read article
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Synthesis of Fe2(MoO4)3/MoO3 Nanocatalysts by Solution Combustion Approach and Their Catalytic Performance for the Selective Oxidation of Methanol
Abstract: The Fe 2 (MoO 4 ) 3 /MoO 3 nanocatalysts comprising Fe 2 (MoO 4 ) 3 nanoparticles supported on MoO 3 nanorods were synthesized via two-step solution combustion approach and their catalytic performance for the selective oxidation of methanol were evaluated. The materials have been characterised using electron microscopy, powder X-ray diffraction and Raman spectroscopy. First, MoO 3 nanoparticles were prepared by solution combustion reaction employing ammonium nitrate as …
Published in International Journal of Applied Nanotechnology · Vol. 10, Issue 1, 2024 · pp. 37–47 Read article
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Comparative Biosorption Analysis of Chicken Feathers and Absorbent Pads on Crude Oil Contaminated Soil
Abstract: The study was done for the biosorption of hydrocarbon contaminated soil using chicken feather waste (CFW) and adsorbent pad adsorbents (AP). The adsorbents materials were sourced locally and prepared accordingly and made ready for the adsorption process. To analyze the adsorption of crude oil from contaminated soil, the following time intervals were used: 0 weeks, 4 weeks, 8 weeks, 12 weeks, 15 weeks, and 20 weeks. Additionally, varying amounts of …
Published in International Journal of Industrial Biotechnology and Biomaterials · Vol. 10, Issue 2, 2024 · pp. 13–33 Read article