Modyfikatory matrycy w płomieniowej i bezpłomieniowej spektrometrii atomowej
dr Andrew Gaal
GBC Scientific Equipment
The use of spectrochemical buffers (substances added to the sample and standards in order to eliminate interference's) has been a common methodological approach to flame and graphite furnace atomic absorption spectroscopy during the whole history of these analytical techniques. The general aim of chemical Modification is facilitating analysis through in situ changing (modifying) of the thermochemical behavior of both the analyte and the matrix. Inevitably, the effect of any particular modifier is complex and diverse, thus to some extent all four components of the analytical system are effected: the analyte, the matrix, the atomizer (the surface layer) and the gas phase. We will present a short history on Chemical Modifiers followed by some specific examples along with their effects on the analyte in question.
Oznaczanie zawartości Pb, Mn we krwi i włosach matki a wady wrodzone narządu ruchu u noworodka
prof. Maria Borawska
Zakład Bromatrologii, AM