Abstract
A rapid, simple method using x-ray emission spectroscopy has been developed for the determination of iron in terphenyl with a limit of detection of 2 μg Fe/g of terphenyl. Terphenyl is an organic compound being considered for use in nuclear reactors. In the pure state it is solid at room temperature. Samples as received for analysis usually contain tars with the result that the sample is a very viscous liquid at room temperature. Chemical analysis involves careful ashing of large amounts of sample requiring several hrs. The major problem in developing an x-ray method was the preparation of satisfactory, homogeneous standards to be used in producing a calibration curve. This was solved by dissolving the cupferron complex of iron in the terphenyl and then determining the iron in the solution by x-ray spectroscopy.
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