Water represents an essential element for life and living things on earth. Aquatic ecosystems play a decisive role in socio-economic development in urban and rural areas. In recent decades there have been concern at the global level with regard to the deterioration of aquatic...

The quality of surface waters is being impacted by the anthropogenic and natural pollution, thus limiting the usage of this water for drinking, industry, agriculture, recreation and other purposes. The water quality indices are intended to provide a single value for the water quality of a source...

The increasing concern over environmental degradation and the necessity for sustainable development highlight the critical role of instrumental methods of chemical analysis in protecting the environment. This review explores various instrumental techniques, including spectrometry, chromatography, and electrochemical methods, and their applications in monitoring and mitigating environmental pollutants. These advanced analytical tools enable accurate identification and quantification of hazardous substances in air, water, and soil, enhancing our ability to assess environmental quality. GC‒MS and HPLC are essential for detecting organic pollutants, whereas AAS is crucial for measuring metal concentrations in environmental samples. The integration of these techniques into regulatory frameworks facilitates effective compliance monitoring and the enforcement of environmental standards. Furthermore, portable instruments have transformed field analysis, allowing real-time monitoring and rapid responses to contamination events. This article underscores the importance of these instrumental methods in fostering collaboration among chemists, environmental scientists, and policymakers to support informed decision-making. In conclusion, instrumental methods of chemical analysis are vital for achieving a cleaner, healthier environment and promoting sustainable practices that safeguard natural resources for future generations.

The physicochemical parameters of water play an important role in determining aquatic life and its development. In this study, the water quality index is used in order to assess the water quality in river Lepenci River. For the calculations of this index, eighteen physicochemical parameters were...

The pollution of rivers is an important issue because the utilization of polluted water has a direct effect on the health of people and other living beings, economy, etc. Sediments represent a very suitable indicator for monitoring and detecting pollution sources of river waters. The aim of this...

Objective: The aim of this paper is to determine the quantitative content of acetylsalicylic acid (aspirin) in pharmaceutical tablets using conductometric titration as a simple, accurate, and efficient alternative to traditional analytical methods. Methodology: The methodology involved dissolving the tablet sample in distilled water and titrating it with a standard sodium hydroxide (NaOH) solution, while monitoring the changes in conductivity during the titration process. The equivalence point was identified from the graph of conductivity versus titrant volume. Results and Discussion: The results and discussion demonstrated a strong correlation between the labeled amount of aspirin in the pharmaceutical formulation and the experimentally determined value. The method showed high reproducibility, with low standard deviations and satisfactory precision. Conclusions: The conclusion of this research is that conductometric titration is a simple, fast, and reliable method for the quantitative analysis of aspirin in pharmaceutical products, and it is suitable for use in both pharmaceutical quality control and educational laboratory settings.