Intake and excretion of 99Tc in a common sea alga, hijiki (Hizikia fusiforme), as ingested in the daily diet--a measurement in an adult male
| Autor: | H. Kawamura, M. Nishimuta, S. Hirano |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Male
Adult male Metabolic Clearance Rate Administration Oral Urine Hizikia fusiforme Radiation Dosage Excretion Feces Ingestion Humans Radiology Nuclear Medicine and imaging Marine alga Food science Radiometry Food Contamination Radioactive Meal Radiation Radiological and Ultrasound Technology Chemistry digestive oral and skin physiology Public Health Environmental and Occupational Health Technetium General Medicine Middle Aged Seaweed Intestinal Absorption Body Burden Digestive System |
| Zdroj: | Radiation protection dosimetry. 105(1-4) |
| ISSN: | 0144-8420 |
| Popis: | Ingestion and excretion of environmental 99 Tc was measured in an adult male who ingested 'hijiki' food in his diet that contained a suh-bequerel activity per kg, and which was prepared from a marine alga, Hizikia fusiforme, or hijiki in Japanese. traditionally eaten in the Japanese diet. Harvested hijiki was boiled, dried and cooked. This was eaten at each meal five times over 2 d. All faeces and 24-h urine samples were collected during the 3 d before and subsequent 1I d starting from the day when the intake began. The ingestion intake was measured by analysing the dried hijiki material. 99 Tc was determined by using liquid-liquid extraction and low-background beta ray spectrometry. The excreta were also analysed for minerals by atomic absorption spectrometry. The apparent absorption rate in the gastrointestinal tract for 99 Tc under these conditions was calculated to be approximately 0.5. The present result from a single subject indicates the need for further studies. |
| Databáze: | OpenAIRE |
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