Category ‘Uncategorized’ Archive

The research work on accurate measurement method of binding constants in supramolecular chemistry carried out by Kristjan Haav (left) in the framework of his AMS master’s thesis has gained international […]

On Friday, Aug 30, 2013, the introductory meeting for first-year AMS students was held. Sergei Jurtšenko gave overview of the AMS programme, timetable of autumn semester 2013 and some practical […]

Roland Hoxha (in the middle on the photo), an AMS student who participated in the Measurement Science in Chemistry (MSC) Summer shool 2013 in Lyon said the following about this […]

Shanshan Wu (third from left on the photo), an AMS student who participated in the Measurement Science in Chemistry (MSC) Summer shool 2013 in Lyon said the following about this […]

On Friday, Jul 12, 2013 the MSC Summer school visited the Alps and ascended from Chamonix to a nearby mountain – Aiguille du Midi – with the height of slightly […]

Two young scientists – Karin Kipper and Riin Rebane – from UT analytical chemistry research group participated in the recent HPLC2013 conference in Amsterdam. Both of them presented the most […]

On July 08, 2013 the sixth MSC Euromaster Summer School 2013 started in Lyon (France). Altogether 34 students from more than ten countries participate in the Summer school, among them […]

On Jun 17, 2013 The kick-off meeting of the EMRP project Metrology for Moisture in Materials (SIB64 METefnet) took place in MIKES (Helsinki). Around 70% of industries use drying at […]

Ten AMS master’s students successfully defended their theses today (on June 10, 2013). On picture, from left: Hedi Sinijärv, Sander Sannik, Karen Atabekjan, Yingjian Hou, Kristjan Haav, Kamarniso Vrandecic, Pippa […]

Definitions of the International vocabulary of metrology (VIM 3) are the foundation of the language spoken by measurement people. The definitions have been carefully elaborated with the involvementof a number […]

The ESTCube-1 satellite was successfully launched early in the morning of 07.05.2013! Some hours later on the same day it was officially announced that the satellite works. Three AMS students […]

Hydrogen bond (HB) is by its importance a unique chemical phenomenon in nature and has been widely studied from almost any possible viewpoint. HBs have an enormous role in the […]

An important direction in making measurement instruments is making them simpler, cheaper and accessible to many people. An interesting development in this direction has been made at SYKE (the Finland […]

During 17-22.02.2013 The first Analytical Chemistry Winter school “Novel analysis methods”, organized by the St. Petersburg’s State University, took place near St. Petersburg (Russia). Ivo Leito participated in the event […]

Amer Jamil Aref Al-Malahmeh from Jordan successfully defended his master thesis on January 15, 2013. The title of the thesis was “Methodological development and validation of Sample treatment and Source […]

On Saturday, Dec 15, 2012, the Autumn semester master’s seminar 2012 of the AMS programme was concluded with presentations from students. Most of the presentations were based on the master’s […]

Liquid chromatographic separation of basic analytes is often hampered by problems, such as insufficient retention, wide and asymmetric peaks, etc, especially if carried out at acidic pH. Many modern HPLC […]

A new software package for measurement uncertainty calculation called MUkit (shortcut from: Measurement Uncertainty kit) has been recently made available by SYKE, the Finnish Environmental Administration. This is the first […]

Electrospray ion source (ESI) is the most used ion source type for connecting liquid chromatography (LC) with mass spectrometry (MS) due to its robustness and possibility to analyze a wide […]

On August 31, 2012 Irja Helm successfully defended her PhD Thesis High accuracy gravimetric Winkler method for determination of dissolved oxygen at Institute of Chemistry, University of Tartu. The essence […]

On 31.08.2012 the introductory meeting for first-year AMS students was held. Sergei Jurtšenko gave overview of the AMS programme, timetable of autumn semester 2012 and some practical aspects of living […]

Klodian Dhoska, graduated from AMS in 2010 shared his thoughts about how the programme has influenced his life during the last two years: “Experience at Applied Measurement Programme has given […]

The MSC Summer school finished on Jul 27, 2012. Kristjan Haav, one of the participants (from the AMS programme, University of Tartu) shared his impressions. Ivo: What would you single […]

As a nice counterbalance to the serious and challenging programme of the summer school last weekend there was a surfing outing at the summer school. All participants had the possibility […]

On Monday, July 16, 2012 the fifth Measurement Science in Chemistry International Summer School started in Fatima (Portugal). In this edition, 48 students from thirteen countries participate. The dense and […]

Alda Andersone from Latvia defended her master thesis on June 11, 2012. The title of the thesis was “The stereoselective synthesis of 2,2,5-trisubstituted tetrahydrofurans, oriented to the preparation of lilac […]

Hanno Evard defended his master thesis on June 11, 2012. The title of the thesis was “Study of paperspray ionization and its possible applications”. The thesis was awarded the highest […]

Seven AMS master’s candidates successfully defended their theses on June 11, 2012. Congratulations! The PDF files of all the theses are available for download from here. (See at the end […]

On May 21-22, 2012 a workshop Validation, Traceability, Measurement Uncertainty: the Challenges for the 21th Century Analysts took place in Berlin. This workshop focused on the relationship between method validation, […]

On March 23, 2012 an in situ interlaboratory comparison measurement of dissolved oxygen concentration EstDO-2012 was carried out at the Testing Centre of University of Tartu. Altogether 13 participants from […]

During Mar 13-16, 2012 Ivo Leito visited University of Shanghai for Science and Technology (USST) and gave a series of lectures/workshops for te students of USST. The lectures/workshops were the […]

text by: Iuliia Demchuk Portugal… You will hardly find a person who doesn’t like it! This country is charming and most probably you will fall in love with it from […]

Antonio Semakalu from Uganda defended his master thesis on February 28, 2012. The title of the thesis was “Gammmaspectrometrical Measurement of Radium Content in Water – Validation of Analysis Procedure”. […]

(text by John C Blackburn) Tartu is a different town in the summer. The days long and the streets quiet, Tartu is a student’s town, and is exciting when the […]

Measurement science influences other sciences and sometimes from quite an unexpected angle. A recent review on extinction of the dinosaurs (the “Mass Extinction at the Cretaceous-Paleogene Boundary”, to put it […]

On Dec 10, 2011 the master’s seminars of the Applied measurement science of the autumn semester 2011 were concluded. Most of the presentations were based on the master’s thesis topics […]

On Nov 29, 2011 a seminar was held in Tallinn, which summarized the results of the study “Metrology in Estonia, its current status, economic impact, trends and needs analysis” carried […]

This week a joint project will finish between University of Tartu and the German National Metrology Institute (PTB – Physikalisch-Technische Bundesanstalt) on providing training in Metrology in Chemistry for Indian […]

For elimination of the disadvantages of the traditional procedure of smoking of fish and meat the so-called liquid smoke has been developed. Some steps during the production of liquid smoke […]

Today on 27.09.2011 on the Laboratory days event at Finnish Environmental Administration – SYKE (Helsinki, Finland) Ivo Leito gave a presentation “Education in Metrology in Chemistry – why and how?”. […]

The winner of the title “teacher of the year” in the Realia et Naturalia field in 2011 is Associate professor of analytical chemistry Koit Herodes. He teaches the “Practical Chemical […]

On 26.08.2011 the introductory meeting for first-year AMS students was held. Ivo Leito gave overview of the AMS programme, timetable of autumn semester 2011 and some practical aspects of living […]

Last week (on July 22, 2011) the closing ceremony of the MSC Summer School 2011 took place in Poznań (Poland). Results of the learning evaluation and student game were presented […]

On Monday, July 11, 2011 the fourth Measurement Science in Chemistry International Summer School started in a west-central city of Poland in Poznań. There are students from fourteen countries. The […]

On Jul 05, 2011 Anneli Kruve defended her PhD thesis Matrix effects in liquid-chromatography electrospray mass-spectrometry (LC-ESI-MS) at the Institute of Chemistry, University of Tartu. Electrospray ionization (ESI, ESI ion […]

In couple of weeks – on Sunday Jul 10 – the 2011 Summer School of the Measurement Science in Chemistry consortium will start. This is already the fourth of its […]

Two AMS students defended their master’s theses on June 8, 2011 at 10.15 a.m. (Tartu, Ravila Street, 14A, room 1021). The topics of the theses are related to testing of […]

Modern technologies allow very accurate measurements of atomic weights and isotope ratios of elements. This is of high importance in solving research problems in others fields. For example, accurate measurement […]

Unfortunately, it is not rare that during preparation of food substances with cancerogenic and/or mutagen activity are unwillingly introduced into food. A typical representatives of this group of dangerous substances […]

The light-emitting diode (LED) is a semiconductor device, which converts electric current into visible radiation, i.e. visible light. LEDs were discovered by accident in 1907, but no practical use was […]

LC-MS (Liquid chromatography mass spectrometry) with ESI (electrospray) ion source (LC-ESI-MS) enjoys ever increasing popularity as a powerful and versatile analytical tool. It has become the number one technique for […]

Smoking as a way of preparation of fish and meat has been known to the humankind since the Stone Age. Smoking represents set of the chemical, thermal, diffusive and biochemical […]

On 28.03.2011 Ivo Leito gave talk “ATR-FT-IR spectroscopy in the region of 550-230 cm-1 for identification of inorganic pigments” at the the 241th ACS National Meeting, Spring 2011 in Anaheim […]

On a seminar on measurement quality in the framework of the conference ChemBio Finland 2011 a presentation “Metrology in Chemistry – from pipette to mass spectrometry, from National Metrology Institute […]

In the process of development and perfection of measurement technologies it became clear that all standards are not ideal. At measurement standards of the basic units it is necessary to […]

Beer is the world’s most widely consumed and probably the oldest of alcoholic beverages; it is the third most popular drink overall, after water and tea. What is beer? Simply […]

Most people (especially in the northern countries) have had the extremely annoying experience that in some (usually somewhat colder than average) morning the car will not start, because there is […]

Among the central reserach topics at Institute of Chemistry, University of Tartu is design and acidity measurements of superstrong acids – so-called superacids. Superacid is an acid that is more […]

More than half of the solar energy that reaches the Earth and is absorbed by land srfaces is used for evaporation of water. Evapotranspiration is a joint process of moisture […]

OECD has published the results of PISA 2009, the most recent edition of its Programme for International Student Assessment. The assessment methodology evaluates a number of abilities and skills of […]

Perfluorochemicals – most notably perfluorooctanoic acid (PFOA) and related compounds – have numerous industrial uses. They are highly stable molecules that do not decompose easily in the environment. It has […]

On Oct 26-27, 2010 a graduation ceremony was held at the EC JRC-IRMM (Geel, Belgium) where the first Euromaster certificates of the MSC Euromaster consortium were awarded to the first […]

With the continuing globalization authenticity of food is becoming more and more important. This is especially true for highly valued types of food, such as certain olive oil, wines, honey, […]

     On 29.09.2010 Maiu Varner defended her master’s thesis “The role of coatings in maintaining stability of panel paintings” at UT Institute of Chemistry.      Panel paintings made on wood (e.g. icons) […]

Compilation containing the full set of lecture slides of the Measurement Science in Chemistry (MSC) Summer School 2010 is now available for download in the Summer school section of the […]

Mass spectrometer (MS) with electrospray ionization (ESI) coupled to a liquid chromatograph (LC) has during the recent decade become the most widespread analysis method of analysis for a vast number […]

pH value is the best known parameter for characterizing acidity of a solution. The pH of a neutral solution is around 7. In acidic solutions, such as battery acid, pH […]

Yesterday (on July 31, 2010) the closing ceremony of the MSC Summer School 2010 took place in Lepanina (Estonia). Results of the learning evaluation and student game were presented and […]

The trend of increasing CO2 concentration in the atmosphere is well known. During recent years another, possibly as serious and wide-ranging, trend has caught the attention of scientists: decrease of […]

Today (23.07.2010) the summer school continued on water: canoeing on the Navesti River (Soomaa National Park), followed by bogwalking in the bogs. A very typical for Estonia form of nature. […]

On Monday, July 19, 2010 the third Measurement Science in Chemistry International Summer School started at the coast of the Baltic Sea in Lepanina (Pärnumaa, Estonia). There are students from […]

Passive House is a concept followed after the energy efficient house but it shouldn’t be confused with Zero Energy Buildings. Passive House is a building designed carefully and built with […]

In passive house design and construction we have 2 main measurements. First one is the differential pressure measurement (also called as the Blower-Door Test) (EVS-EN 13829:2001) (modified version of ISO […]

Sudan dyes (most important of them are Sudan I, II, III and IV) are a family of compounds in the class of azo dyes that are used for different industrial […]

Mycotoxins are a class of food contaminants that are synthesized by certain species of fungi. Differently from, e.g. pesticides, mycotoxins are non-anthropogenic – they are not added to food by […]

In roughly one month – on Monday Jul 19 – the 2010 Summer School of the Measurement Science in Chemistry consortium will start. This is already the third of its […]

On Tuesday Jun 8 Gert Suurkuusk defended his master thesis on a very interesting topic: Determination of Cannabinoids by Gas Chromatography. The title of the thesis is Validation of the […]

Today all seven AMS master’s candidates successfullt defended their theses. Congratulations! The PDF files of all the theses are available for download from here (See at the end of the […]

Seven AMS students will defend their master’s theses on June 8, 2010. The topics of the theses range from high-accuracy metrology (Klodian Dhoska – Systematic effects in automated mass measurements) […]

More and more measurements are made by means of different sensors. At the same time estimation of measurement uncertainty of measurement results (for characterizing their precision and bias – collectively […]

Date rape drug refers to a drug that can be used to assist in the commission of a sexual assault, such as date rape (Wikipedia). detection of traces of date […]

On May 3, 2010 Signe Vahur from chair of analytical chemistry defended her doctoral thesis “Expanding the possibilities of ATR-FT-IR spectroscopy in determination of inorganic pigments”. ATR-FT-IR has been used […]

Last Friday we finalized the submission of the proposal for obtaining the prestigious Erasmus Mundus label for our programme. The proposal was submitted as a collaborative effort (which is the […]

Every now and then measurements or chemical analyses show up in the awarded Nobel prize descriptions. I recently came across the Nobel lecture of John B. Fenn, the inventor (together […]

In one week time the Student Days in Tartu will start. Every year before the beginning of exam session in the middle of spring Student Days are held. On 26th […]

Besides the well-established LoD and LoQ as measures of detection ability of a procedure, laboratories are increasingly often required to establish also the decision threshold (CCalpha) and detection capability (CCbeta) […]

AMS Student Martynas Pelakauskas participates in the EstCube satellite project. His task is to design and check the power supply electronics. ESTCube-1, the first Estonian student satellite (www.estcube.eu), is a […]

There is a very good online database of pesticides hosted by the EU Community Reference Laboratories for Residues of Pesticides available at http://www.crl-pesticides-datapool.eu/ It is free and the data are […]

Posted by Ivo Leito Measurement science (metrology) is a lucky area in the sense that there a very good and authoritative “single-point-of-reference” terminology vocabulary available: the VIM (Vocabulaire international de métrologie, […]

On Saturday 20th March this semester’s Applied Measurement Science seminar was held in Chemicum. Almost all of the students – both first and second year – were participating and making […]

Did you know that time measurement accuracy of roughly 10 nanoseconds – that is 0.00000001 seconds (!) – is required for accurate positioning provided by GPS devices? Amazing! This time […]

Safety and quality of drinking water are among the important responsibilities of analytical chemists and measurement scientists. Toxic elements, such as lead, cadmium, selenium, etc are an important health risk […]

Measurements must be considered in the broadest sense and have very many applications: toxic metals in drinking water; cholesterol level in blood; strength of construction materials; protein content in wheat; […]