It reduces manipulations of large amounts of radioactivity. The product was isolated by preparation HPLC. Its radiochemical purity is higher than 98%.

该法简便、不需要中间产物的分离纯化、操作放射性步骤少、制备周期短，产品用高压液相制备色谱分离纯化，效率高、纯度在98%以上。

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The neurotoxin can paralyze rat after intracerebroventricular injection and block the neuromuscular transmission of the isolated rat phrenic nerve diaphragm preparation.

能阻断小鼠膈神经膈肌标本神经肌肉接头传递，脑室及硬膜外注射毒素能使小鼠瘫软。

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The preparation of the isolated IMG-colon and the apparatus used in this technique were also applicable in studying the effects of muscle stretch of the colon on the neuronal electrical activities.

同一装置还可用于观察牵拉纵肌或扩张环肌所引起神经节细胞电活动的变化。

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