The Kjeldahl method was introduced in 1883 and consists of three main steps: sample
digestion, distillation, and ammonia determination (titration being the primary method). The …

Practical guidelines for reporting analytical calibration results are provided. General topics,
such as the number of reported significant figures and the optimization of analytical …

The objective of analytical method validation is to ensure that every future measurement in
routine analysis will be close enough to the unknown true value for the content of the analyte …

The needing of rapid and sensitive detection method for pesticides is increasing, to facilitate
its detection without complicated instruments. Herein, a novel paper-based senor was …

Neste trabalho são apresentadas as definições dos parâmetros (seletividade, limites de
detecção e quantificação, exatidão, precisão, linearidade, gráfico analítico, sensibilidade e …

There is an increasing need for developing a strategy to quantify the newly identified
substances in environmental samples, where there are not always reference standards …

Glyphosate (Gly) is the most widely used herbicide at the moment. It presents a broad
spectrum of action, hence its use for many different crops. Regulatory agencies have …

Multivariate calibration 1 (MVC1), a MatLab® toolbox for implementing up to 12 different first-
order calibration methodologies through easily managed graphical user interfaces, is …

Assessment of accuracy of analytical methods is a fundamental stage in method validation.
The use of validation standards enables the assessment of both trueness and precision of …

In this work, fabrication of a novel and ultrasensitive electrochemical biosensor based on
immobilization of tyrosine hydroxylase onto palladium-platinum bimetallic alloy …