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Determination of trace elements in water samples by k0 based instrumental neutron activation analysis using sodium as comparator
(Lima, 2003-07)
Neutron Activation Analysis in liquid samples has been a challenge for our laboratory due to the following difficulties: i) to irradiate samples in the polyethylene vials avoiding pressure build up ii) to get an appropriate ...
Quality assurance of analytical results in environmental samples by means of participation in intercomparison round
(Lima, 2003-07)
In developing countries, limited resources in the laboratories hinder quality assurance. One way to overcome this problem is to participate in international interlaboratory comparison rounds in order to asses the reliability ...