| WANG Jiadong,ZHOU Yongzeng.Radiochemical analysis of plutonium in an amputated arm from a patient contaminated accidentally[J].Chinese Journal of Radiological Medicine and Protection,2000,20(2):73-76 |
| Radiochemical analysis of plutonium in an amputated arm from a patient contaminated accidentally |
| Received:September 10, 1999 |
| DOI： |
| KeyWords:Plutonium Radiochemical analysis Bone Muscle Skin |
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| Abstract:: |
| Objective In order to study the retention and distribution of plutonium in human body.the activity in an amputated right arm from a patient with malignant fibrous histiocytoma developed at the elbow was analysed.The patient had been contaminated by plutonium intaken accidentally 20 years ago and the intake through a wound of his left hand was estimated to be 77～130 Bq. Methods The arm was dissected into 8 sections anatomically.Soft tissues were separated from bones.The samples were incinerated and the Pu was separated by ion exchange.Analysis of energy spectra and activity measurement were made after electrodeposition of the Pu on a stainless steel disc. Results The total content of 239 Pu in all of the samples was determined to be 68. 5 mBq.The energy spectrum peak of Pu in arm tissues was the same with the standard source of 239 Pu.70% of the plutonium were retained in the bone.The content of 239 Pu in soft tissues was very low.About 5% of 239 Pu were detected in the skin.The distribution of Pu in bone was not uniform.The data show that the relationship between the concentration of plutonium in bone C(mBq/g ash) and the ratio of bone ash to its wet weight (f) was of a good negative correlation.It can be described by the linear equation,C=0.72-1.26f (correlation coefficient r =-0.78). Conclusion 239 Pu can deposit in the bone tissues of human body for a long time.The content of Pu in the epiphyseal ends is higher than in the diaphysis.The pattern of Pu distribution in bone noted in this paper is similar to that reported in the literature. |
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