List of works by Ivo Leito

2,5-Dihydroxybenzoic acid solution in MALDI-MS: ageing and use for mass calibration

scientific article

A Unified pH Scale for All Phases

scientific article

A comprehensive self-consistent spectrophotometric acidity scale of neutral Brønsted acids in acetonitrile

scientific article

A new class of organosuperbases, N-alkyl- and N-aryl-1,3-dialkyl-4,5-dimethylimidazol-2-ylidene amines: synthesis, structure, pK(BH+) measurements, and properties

A review of analytical techniques for determination of Sudan I-IV dyes in food matrixes

scientific article published on 24 February 2010

A unified view to Brønsted acidity scales: do we need solvated protons?

scientific article

ATR-FT-IR spectroscopy in the region of 500-230 cm(-1) for identification of inorganic red pigments.

scientific article published on 8 April 2009

ATR-FT-IR spectroscopy in the region of 550-230 cm(-1) for identification of inorganic pigments

scientific article published on 24 December 2009

Accurate Method To Quantify Binding in Supramolecular Chemistry

Acid-base equilibria in nonpolar media. 2.(1) Self-consistent basicity scale in THF solution ranging from 2-methoxypyridine to EtP(1)(pyrr) phosphazene

scientific article published in March 2002

Acid-base equilibria in nonpolar media. 3. Expanding the spectrophotometric acidity scale in heptane

scientific article published in October 2003

Acid-base equilibria in nonpolar media. 4. Extension of the self-consistent basicity scale in THF medium. Gas-phase basicities of phosphazenes.

scientific article published in December 2003

Acidities of strong neutral Brønsted acids in different media

Acidity constants in different media (I=0 and I=0.1 M KCl) from the uncertainty perspective.

scientific article published on 22 June 2006

Acidity of Strong Acids in Water and Dimethyl Sulfoxide

scientific article

Acidity of anilines: calculations vs experiment.

scientific article published on 26 August 2011

Analysis of dammar resin with MALDI-FT-ICR-MS and APCI-FT-ICR-MS.

scientific article

Application of the Nordtest method for "real-time" uncertainty estimation of on-line field measurement

scientific article published on 17 September 2015

Applying the unified pH scale: absolute acidities in the gas phase and anchor points for eleven representative liquid media.

scientific article

Approaching sub-ppm-level asymmetric organocatalysis of a highly challenging and scalable carbon-carbon bond forming reaction

scientific article published on 09 July 2018

Basicities of Strong Bases in Water: A Computational Study

Basicity of Phosphanes and Diphosphanes in Acetonitrile

Basicity of Very Weak Bases in 1,2-Dichloroethane.

scientific article published on 21 October 2016

Bias in clinical chemistry

scientific article

Biodegradation efficiency of functionally important populations selected for bioaugmentation in phenol- and oil-polluted area

scientific article published on 22 October 2004

Combating matrix effects in LC/ESI/MS: the extrapolative dilution approach

scientific article published on 6 August 2009

Comparative validation of amperometric and optical analyzers of dissolved oxygen: a case study

scientific article published on 28 April 2018

Conformational Switching of a Foldamer in a Multicomponent System by pH-Filtered Selection between Competing Noncovalent Interactions

scientific article published on 14 May 2015

Covalent attachment of polymeric monolith to polyether ether ketone (PEEK) tubing.

scientific article

Design, synthesis and application of carbazole macrocycles in anion sensors

scientific article published on 04 August 2020

Determination of neonicotinoids in Estonian honey by liquid chromatography-electrospray mass spectrometry

scientific article published on 6 April 2016

Differences in extracellular glutamate levels in striatum of rats with high and low exploratory activity

scientific article published on 17 February 2015

Dissolved Oxygen Concentration Interlaboratory Comparison: What Can We Learn?

EACH (Excellence in Analytical Chemistry), an Erasmus Mundus Joint Programme: progress and success

scientific article published on 01 September 2019

ESI outcompetes other ion sources in LC/MS trace analysis

scientific article published on 26 April 2019

Effect of mobile phase on electrospray ionization efficiency

scientific article published on 21 August 2014

Electrospray ionization matrix effect as an uncertainty source in HPLC/ESI-MS pesticide residue analysis

scientific article published in January 2010

Enhanced nebulization efficiency of electrospray mass spectrometry: improved sensitivity and detection limit

scientific article published on 22 September 2012

Ensuring repeatability and robustness of poly(glycidyl methacrylate-co-ethylene dimethacrylate) HPLC monolithic columns of 3 mm id through covalent bonding to the column wall

scientific article

Equilibrium Acidities of Superacids

scientific article (publication date: 21 January 2011)

Establishing Atmospheric Pressure Chemical Ionization Efficiency Scale

scientific article

Estimation of uncertainty in pKa values determined by potentiometric titration.

scientific article published on 22 April 2004

Evaluating the COSMO-RS method for modeling hydrogen bonding in solution

scientific article published on 29 April 2013

Evaluation of the residual liquid junction potential contribution to the uncertainty in pH measurement: a case study on low ionic strength natural waters.

scientific article published on 20 February 2010

Experimental Basicities of Phosphazene, Guanidinophosphazene, and Proton Sponge Superbases in the Gas Phase and Solution

scientific article

Extension of the self-consistent spectrophotometric basicity scale in acetonitrile to a full span of 28 pKa units: unification of different basicity scales

scientific article

Gas-Phase Brønsted Superacidity of Some Derivatives of Monocarba-closo-Borates: a Computational Study

Gas-phase basicities around and below water revisited

scientific article published on October 2010

Generalization of Acid-Base Diagrams Based on the Unified pH-Scale

scientific article published on 26 June 2019

Generalized principle of designing neutral superstrong Brønsted acids

scientific article

Guanidinophosphazenes: design, synthesis, and basicity in THF and in the gas phase

scientific article

Highly Acidic Conjugate-Base-Stabilized Carboxylic Acids Catalyze Enantioselective oxa-Pictet-Spengler Reactions with Ketals

scientific article published on 10 December 2019

Hydrogen-Bond Donicity in DMSO and Gas Phase and Its Dependence on Brønsted Acidity

scientific article published on 20 December 2016

Identification and classification of textile fibres using ATR-FT-IR spectroscopy with chemometric methods

scientific article published on 12 September 2016

Influence of Water Content on Basicities in Acetonitrile

article published in 2014

Influence of Water Content on the Acidities in Acetonitrile. Quantifying Charge Delocalization in Anions ⬇️

scientific article published on November 4, 2010

Ionization efficiency ladders as tools for choosing ionization mode and solvent in liquid chromatography/mass spectrometry

scientific article published on 01 December 2019

MALDI-FT-ICR-MS for archaeological lipid residue analysis

scientific article

Matrix effects in pesticide multi-residue analysis by liquid chromatography-mass spectrometry

scientific article

Measurement uncertainty estimation in amperometric sensors: a tutorial review

scientific article published on 30 April 2010

Method development for the analysis of resinous materials with MALDI-FT-ICR-MS: novel internal standards and a new matrix material for negative ion mode

scientific article

Micro-Winkler titration method for dissolved oxygen concentration measurement.

scientific article published on 4 July 2009

On the Basicity of Conjugated Nitrogen Heterocycles in Different Media

On the acidity and reactivity of highly effective chiral Brønsted acid catalysts: establishment of an acidity scale

scientific article published on 5 September 2013

Optimization of electrospray interface and quadrupole ion trap mass spectrometer parameters in pesticide liquid chromatography/electrospray ionization mass spectrometry analysis

scientific article published in April 2010

Pentakis(trifluoromethyl)benzenediazonium Cation: A Useful Building Block for the Syntheis of Trifluoromethyl-Substituted Derivatives

scientific article published on 10 July 2013

Pentakis(trifluoromethyl)phenyl, a sterically crowded and electron-withdrawing group: synthesis and acidity of pentakis(trifluoromethyl)benzene, -toluene, -phenol, and -aniline

scientific article

Polytrifluoromethylation versus polyfluorination of the isomers of Kekulé benzene and phenol: a theoretical study

scientific article published on October 2010

Predicting Relative Stability of Conformers in Solution with COSMO-RS.

scientific article

Prediction of acidity in acetonitrile solution with COSMO-RS

scientific article (publication date: 15 April 2009)

Prediction of partition and distribution coefficients in various solvent pairs with COSMO-RS

scientific article published on 30 May 2018

Quantifying uncertainty in measurement of mercury in suspended particulate matter by cold vapor technique using atomic absorption spectrometry with hydride generator

scientific article published on 11 September 2013

Quantitative non-destructive analysis of paper fillers using ATR-FT-IR spectroscopy with PLS method

scientific article published on 30 May 2019

Quantum chemical calculations on a unified pH scale for all phases.

scientific article published on 19 April 2011

Rapid Determination of Meropenem in Biological Fluids by LC: Comparison of Various Methods for Sample Preparation and Investigation of Meropenem Stability

Retention of acidic and basic analytes in reversed phase column using fluorinated and novel eluent additives for liquid chromatography-tandem mass spectrometry

scientific article published on 01 November 2019

Simple and scalable synthesis of the carborane anion CB11H12

scientific article published on 26 March 2019

Social food here and hereafter: Multiproxy analysis of gender-specific food consumption in conversion period inhumation cemetery at Kukruse, NE-Estonia

scientific article published in September 2018

Sodium adduct formation efficiency in ESI source

scientific article

Solute‐solvent and solvent‐solvent interactions in binary solvent mixtures. 2. Effect of temperature on the ET(30) polarity parameter of dipolar hydrogen bond acceptor‐hydrogen bond donor mixtures

Solution and gas-phase acidities of all-trans (all-E) retinoic acid: an experimental and computational study.

scientific article published on 17 June 2015

Sponge Spray-Reaching New Dimensions of Direct Sampling and Analysis by MS.

scientific article published on 13 October 2017

Strategy of Pseudomonas pseudoalcaligenes C70 for effective degradation of phenol and salicylate

scientific article

Substituent Effects on the Basicity of 3,7-Diazabicyclo[3.3.1]nonanes

article published in 2006

Superacidity of closo-Dodecaborate-Based Brønsted Acids: a DFT Study

Superbasicity of a bis-guanidino compound with a flexible linker: a theoretical and experimental study

scientific article published in November 2009

Systematic Optimization of Liquid-Liquid Extraction for Isolation of Unidentified Components

scientific article published on 10 November 2017

The Evolution of Electrospray Generated Droplets is Not Affected by Ionization Mode.

scientific article

The Ideal Ionic Liquid Salt Bridge for the Direct Determination of Gibbs Energies of Transfer of Single Ions, Part I: The Concept

scientific article published on 13 December 2017

The Ideal Ionic Liquid Salt Bridge for the Direct Determination of Gibbs Energies of Transfer of Single Ions, Part II: Evaluation of the Role of Ion Solvation and Ion Mobilities

scientific article

Think Negative: Finding the Best Electrospray Ionization/MS Mode for Your Analyte

scientific article

Towards the electrospray ionization mass spectrometry ionization efficiency scale of organic compounds.

scientific article published in January 2008

Transferability of the electrospray ionization efficiency scale between different instruments

scientific article published on 6 August 2015

Tutorial on estimating the limit of detection using LC-MS analysis, part I: Theoretical review

scientific article

Tutorial on estimating the limit of detection using LC-MS analysis, part II: Practical aspects

scientific article

Tutorial review on validation of liquid chromatography-mass spectrometry methods: part I.

scientific article published on 13 February 2015

Tutorial review on validation of liquid chromatography-mass spectrometry methods: part II.

scientific article published on 13 February 2015

Uncertainty contribution of derivatization in gas chromatography/mass spectrometric analysis

scientific article published on 16 December 2019

Uncertainty sources in UV-Vis spectrophotometric measurement

Using MOOCs for teaching analytical chemistry: experience at University of Tartu

scientific article

Utilization of data below the analytical limit of quantitation in pharmacokinetic analysis and modeling: promoting interdisciplinary debate

scientific article published on 23 July 2018

Validation and extension of the gas-phase superacidity scale

scientific article published on 22 November 2019

Very strong organosuperbases formed by combining imidazole and guanidine bases: synthesis, structure, and basicity

scientific article published on 13 December 2013

[4-(Ph3 B)-2,6-Mes2 Py]- : A Sterically Demanding Anionic Pyridine

scientific article published on 17 October 2018

Paulina is supported by:

About Paulina

Help