在6.6M酸度条件下，其呈色反应具有较高的灵敏度，稳定性好。

In the solution of 6.6M hydrochloric acid the colour reaction has a high sensitivity and a better stability.

youdao

在6.6M酸度条件下，其呈色反应具有较高的灵敏度，稳定性好。

In the solution of 6.6M hydrochloric acid the colour reaction has a high sensitivity and a better stability.

youdao