precipitin reaction

Fourty two cases of paragonimiasis caused by Paragonimus skrjabini were diagnosed with precipitin reaction and the results showed that the positive rate was 83.3%.

用环状沉淀试验诊断42例肺吸虫病，阳性率83.3%；

A comparison between IOP and circumoval precipitin reaction ( COP) was made in 115 serum samples.

该115例血清作IOP与环卵沉淀反应（COP）比较试验。

Study on the diagnosis of paragonimiasis with precipitin reaction

环状沉淀试验诊断肺吸虫病研究

The agar diffusion and quantitative precipitin reaction show that the antigenicity of BSA decreases considerably after NBS treatment.

琼脂扩散及免疫定量实验结果显示NBS处理后BSA的抗原性减弱。

Small-tubing precipitin test techni-que and agar gel diffusion technique were employed in antigen-antibody reaction tests, and gave good results indicating that the antisera so pre-pared produced fairly high titres.

抗原&抗体反应用小管沉淀反应技术及琼脂扩散技术，均获得良好效果，反映制备出的RDV抗血清具有相当高的效价。