LABORATORIO DI TECNICHE ANALITICHE AMBIENTALI

Provide a solid background in chemical principles that are particularly important for Analytical Chemistry. Provide the basic knowledge of the solution equilibria, volumetric and gravimetric analysis, and use of common instrumental methods in analytical chemistry. The course is also aimed to develope the right analytical sensitivity required for the chemical laboratory.

Knowledge and understanding: The aim of the course is to provide a first framework for the overall synthesis of analytical chemistry, addressing principally the fundamentals and the use of some of the most important instrumental quantitative techniques of analysis.

Applying knowledge and understanding: Ability to understand, design, implement and adapt an analysis process from sampling to final data processing.

Making judgements: Ability to analyze and critical evaluations, ability to interpret analytical data and synthesis of new and complex ideas;

Communication skills: Ability to expose the topics covered with terminological rigor and language properties, also making use of multimedia presentations.

Learning skills: Ability to tackle advanced studies with a high degree of autonomy.

The course will be carried out through a first part of lectures to provide the student with the basic background for entering the laboratory, and a part of the laboratory that includes participated lessons, simulations and quantitative analysis with single and group work typology.

Should teaching be carried out in mixed mode or remotely, it may be necessary to introduce changes with respect to previous statements, in line with the programme planned and outlined in the syllabus.

Information for students with disabilities and/or SLD:

To guarantee equal opportunities and in compliance with the laws in force, interested students can ask for a personal interview in order to plan any compensatory and / or dispensatory measures, based on the didactic objectives and specific needs.

It is also possible to contact the CInAP referent (Center for Active and Participatory Integration - Services for Disabilities and / or SLD) of our Department, Prof.ssa Teresa Musumeci.

Introduction of the course. Statistics. Errors in Analytical Chemistry. Presentation of results. Equilibria in solution. Acid-Base equilibria, equilibria of precipitation, of complexation and redox. Selection of Analytical Method. Precision, accuracy, sensitivity. Laboratory instruments: Analytical balance and glassware. Gravimetric analysis. Precipitation Analysis (Overview). General information on titrations. Preparation of standard solutions. standardization procedures. Definition of primary standard. Calibration of laboratory glassware, standardization of HCl solutions with sodium carbonate, acid-base titrations, complexometric titrations, titration with EDTA. Determination of Ca2 + and Mg2 +. complexometric determination of Cu (II), determination of water hardness. Redox titrations. Iodimetry and iodometry. Iodimetric determination of ascorbic acid. Iodometric determination of potassium iodate content in the food iodized salt. Spectrophotometric determination of caffeine and paracetamol. In addition, the principles and use of common instrumental methods in Analytical Chemistry will be discussed, with particular regard to the areas of spectroscopy and saparation techniques.

Freseir & Fernando: Gli Equilibri Ionici nella Chimica Analitica - Piccin Editore, Padova. Kolthoff, Sandell, Meehan e Bruckenstein: Analisi Chimica Quantitativa. Vol. 1 e Vol. 2 - Piccin Editore, Padova. Skoog, West, Holler: Chimica Analitica , EdiSES srl. A.D. Skoog, Holler: Chimica Analitica Strumentale, Crouch Edizione: II / 2009.

Skoog, Holler, Crouch, Principles of instrumental analysis - VII ed. Thomson Brooks/Cole, 2007.

D. C. Harris, Quantitative Chemical Analysis, 9th ed. W.H. Freeman and Company, New York, US, 2016.