Nineta Hrastelj

European Chemical Society (EuChemS)

What are the country‐specific differences in the education of chemistry students across the EU? How do students’ preferred careers change with the level of their qualifications? Do students have sufficient information to make good career choices? Which media are now considered most effective for job searches? What do students currently consider to...

Understanding diversity is the foundation for progress on inclusion. Diversity covers a wide range of characteristics, not just gender. Does the training meet the current needs of the workplace? What role does gender discrimination play in the chemical workforce? To what extent are partners treated equally when caring for a family member? Three Emp...

The chapter »Metrology for the Sea: Chemical Quantities gives an overview of the foundation for measurements in the chemical sciences and in particular those related to the sea. In this context, traceability, validation, and measurement uncertainty are explained, in addition to sampling and quality aspects. An overview of interconnected worlds of t...

This procedure describes titrimetric determination of mass fraction of titanium dioxide (TiO2) and total iron content (Fe-tot) in Ilmenite and Titanium Slag.

This book presents worked examples of five analytical procedures. These practical examples address traceability, validation and measurement uncertainty aspects in a systematic and consistent way, and cover applications in the analysis of water, food, as well as ores and minerals. This concept is based on the experiences of the TrainMiCc program, in...

Employment conditions and career opportunities are in the focus of the new Employment Survey for European Chemists (ESEC2). Conditions and opportunities are individually analysed for all countries with a statistically significant number of responses. The results provide important clues for careers in these countries and in Europe as a whole. The im...

Final Evaluation of the European Metrology Research Programme (EMRP) and Interim Evaluation of the European Metrology Programme for Innovation and Research (EMPIR)

This paper describes a summer school organized in the context of an International Master Program, which was created to address a qualification framework required by many employers for having graduates with knowledge and competences required to work in an accredited laboratory. The development of this program started in 2005 when the European Commis...

Which country pays its chemists and chemical engineers the highest salaries? Where can I find a new job quickest? Which chemical sub-discipline offers most jobs? Reliable answers for these and other questions have been derived from the first European employment survey for chemists and chemical engineers, which was carried out in 2013. Here we publi...

Experts examine the role of analytical chemists in the European labor force. They examine whether higher education in chemistry in Europe provide appropriate specialization for graduates. Reliable answers to these and other questions have been derived from the first European employment survey of chemists and chemical engineers, conducted in 2013. T...

The robustness assessment is a part of a method validation protocol, during which several characteristics of an analytical method are also evaluated (e.g. accuracy, repeatability, reproducibility, linearity, intermediate precision, measurement uncertainty) in order to assess its fitness for purpose. The purpose of robustness assessment of the near...

This book includes four TrainMiC® presentations: 1. Uncertainty of measurement — Part I Principles; 2. Uncertainty of measurement — Part II Approaches to evaluation; 3. Statistics for analytical chemistry — Part I; and 4. Statistics for analytical chemistry — Part II. TrainMiC® is a European programme for lifelong learning on how to interpret the...

Examples on traceability, measurement uncertainty and validation for measurements of retinol and α-tocopherol in human serum, cyclamate in soft drinks, arsenic in groundwater, sodium chloride in milk products and total organic carbon in waste water are presented in this book. Additionally, the idea and structure of the TrainMiC® examples, which com...

The TrainMiC® (Training in Metrology in Chemistry) programme is a European programme for Life-Long Learning in metrology in chemistry, which is a truly unique system operational across many parts of Europe (19 countries) via national teams. It uses shareware pedagogic tools and the learning content has been harmonised at the European level by a joi...

The article describes the importance of calibration of all the instruments that are used in a certain measurement procedure as well as different ways of their calibration. As to bring the topic closer to the users of measurements, analogy with an orchestra is used.

Target measurement uncertainties (TMUs), which should be achieved in chemical measurements, are proposed. Such TMUs are intended to set goals for measurement laboratories and could provide independent and objective criteria for laboratory assessors verifying the measurement capability of laboratories. A TMU is specified relative to a stated metrolo...

A common understanding of issues related to measurement science applied to chemistry is essential among European member states and acceding- candidate countries. An education platform was therefore created to respond to this challenge: TrainMiC, Training in Metrology in Chemistry. After a brief presentation of TrainMiC and an overview of TrainMiC e...

Spectroscopic methods are widely used in analytical laboratories all over the world. Detailed knowledge about the principles of the techniques as well as knowledge of the whole analytical process are necessary to 'produce' measurement results of adequately high quality. According to the conclusions resulting from IRMM's International Measurement Pr...

Traceability of the results of measurements of gold in precious metal alloys by XRF is described and the role of certified reference materials (CRMs) and reference materials (RM) explained. During the measurement process, CRMs and RMs are used twice: in the calibration of the measuring instrument (XRF spectrometer) and just before measuring each in...

In order to establish an adequate analytical system for the quality control of industrially produced titanium dioxide white pigments, two multivariate linear calibration techniques, principal component regression (PCR) and partial least squares (PLS), are used to model the relationship between the important pigment property, change of colour, and i...

Models for the quantitative determination of Fe, Nb and Si in titanium (IV) oxide white pigments by flame atomic absorption spectrometry (AAS) are described. For the models two multivariate linear calibration techniques have been used: principal component regression (PCR) and partial least squares (PLS1). Absorbances measured at wavelengths for ele...

Two different artificial neural network (ANN) strategies for building a model for the quantitative prediction of the property called ''total color difference'' are described. The models in the study are based on eight different complex oxide concentration measurements. The models obtained by the ANNs are compared with the multivariate linear regres...