Summary of email report provided by licensee:
On 10/01/04, one vial of 1000 microcuries of Redivue (deoxycytidine 5-Triphosphate (Dctp)) was received by licensee. Concentration indicated on the vial was 10 microcuries per microliter. This material contains the radioisotope of Phosphorous 32 (P-32). Per procedure, the project leader verified that there was 90 microliters (900 microcuries) of material in the vial by pipette after delivery receipt. The project leader did notice that there was some material on the lip of the container and also on the plug that seals the vial, but this amount was not able to be quantified. On 10/05/04, the last intended use of the vial, the project leader intended to withdraw 100 microcuries when inventory records indicated that 150 microcuries should have been available. The project leader was only able to retrieve 50 microcuries (5 microliters).
Both discrepancies noted above indicate a potential loss of 200 microcuries of P-32. It is believed that the original discrepancy of 100 microcuries was present in the vial but distributed around the lip and sides of the vial. The second discrepancy of 100 microcuries discovered on 10/05/04 is believed to be the result of excess material sticking to the tip of the pipette or when setting the volume of the pipette. There is no evidence of intentional removal of material from the vial or use of material without the activity being logged in the isotope inventory log.
There was no indication of any contamination via the weekly swipe analysis and a survey of the laboratory area. Other sections of the building show no indication of contamination or individuals being exposed to radiation.