X-ray spectrometry

Inaccuracies encountered in sulfur determination by particle induced x-ray emission

“…Certain compounds may be volatilized and therefore lost because of sample heating. This previously has been recognized as a serious problem in thick target methods where most of the energy of the exciting beam is absorbed by the target (7). However, only a few reports have been published of problems with sample heating when using targets such as those used in this study.…”

Thin-layer bioautographic assay for the detection of salinomycin sodium in rabbit tissues

“…For the detection of the related compounds monensin and lasalocid in animal tissues, thin-layer bioautographic techniques have been described (Donoho and Kline, 1967;MacDonald, 1978;MacDonald et al, 1979). These techniques have been recognized as simple, selective, and sensitive.…”

Thin carbon foils for the elimination of charging effects in proton induced x-ray emission spectrometry

“…Thin Carbon Foils for the Elimination of Charging Effects in Proton Induced X-Ray Emission Spectrometry Sir: The advantages of ion excitation, particularly proton excitation in X-ray emission analysis (1) have been debated at length in the literature (2). The most important advantages of ion excitation over electron or X-ray excitation are the high cross sections for X-ray emission and the low background contribution from bremsstrahlung.…”