To facilitate the international food trade as well as to protect consumers from exposure to
unacceptable pesticide residue levels, Codex Alimentarius Commission, European Union …

Dissolved oxygen concentration in water is a crucial parameter to assess the condition or
evolution of an aquatic ecosystem health. This determination can be performed using an …

Chemical oxygen demand (COD) is one of the most relevant chemical parameters for the
management of wastewater treatment facilities including the control of the quality of an …

The estimation of the uncertainty associated to analytical methods is necessary in order to
establish the comparability of results. Multiresidue analytical methods lack very often of …

Software support for the Nordtest method of measurement uncertainty evaluation is
described. According to the Nordtest approach, the combined measurement uncertainty is …

The objective interpretation of a measurement result requires knowing the associated
uncertainty. The cost-effective collection of measurement performance data on the same day …

A new strategy to carry out the correction of analytical results affected by systematic errors
due to the matrix effect is proposed. Two types of external calibrations must be established …

Rapid and practical extraction methods were developed using dichloromethane and ethyl
acetate for the routine determination of 16 organochlorine pesticide residues and applied to …

In recent years the declaration of estimated uncertainty of measurement has become an
integral part of analytical results. This study presents the assessment of results generated …

Measurement uncertainty evaluation involves combining uncertainty components reflecting
all relevant random and systematic effects: the precision and trueness uncertainty …