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目的：为了解螺旋藻对放射性碘的促排作用效果，观察了螺旋藻对大鼠甲状腺滞留１３１Ｉ的促排作用。方法：采用β、γ计数测量装置分别对给予１３１Ｉ后不同时间的大鼠甲状腺进行活体及离体测定。结果：当给大鼠１３１Ｉ２４ ｈ 后，供给含１０％ 的螺旋藻饲料，在第９ 天、第１６ 天对活体大鼠甲状腺β计数测定值与给１３１Ｉ普通饲料组比较具有非常显著性差异（ Ｐ＜ ０ ．０１） ；在给予１３１Ｉ后第４７ 天活杀大鼠进行离体甲状腺γ计数，将螺旋藻饲料组与普通饲料组比较仍具有非常显著性差异（ Ｐ＜０ ．０１） 。结论：采用β、γ两种测量装置检测结果表明，螺旋藻对大鼠甲状腺内沉积的１３１Ｉ具有良好的促排作用。
OBJECTIVE: To investigate the effect of spirulina on promoting the emission of radioactive iodine, the promoting effect of spirulina on 131I of thyroid in rats was observed. Methods: Thyroid gland in rats and rats given 131I at different time were measured in vivo and in vitro using β, γ counting device. Results: When the rats were fed with 131I for 24 hours, 10% Spirulina diet was fed, and the β-count of thyroid in living rats on day 9 and day 16 was significantly different from that of 131I general feed group (P <0.01). After 131I administration, the amount of thyroid γ released from the live-killed rats was still 47 days. There was still a significant difference (P <0.01) between Spirulina feed group and normal feed group. Conclusion: The detection results of both β and γ measurement devices show that Spirulina platensis has a good effect on the 131I deposition in the thyroid of rats.