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Trace analysis by microwave excitation of sealed samples-I: preliminary investigations
A van Sandwijk1, P F van Montfort, J Agterdenbos
1Analytisch Chemisch Laboratorium, Rijksuniversiteit Utrecht, Croesestraat 77A, Utrecht, Netherlands.
Abstract:
An important limitation to the sensitivity of analytical methods using atomic spectroscopy is the short residence-time of the atoms in the light-path. The possibility has been studied of sealing the samples in a quartz tube where they are forced to emit light by microwave excitation. The detection of amounts below one ng in a volume of 0.5 ml seems possible.
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