An indicator of how broad such a reaction might be is readily available.
这样的反应会有多广泛是很容易体现的。
2
A new indicatorreaction is developed on the basis of manganese-catalyzed oxidation of rhodamine B by potassium periodate with nitrilotriacetic acid as an activator.
本文研究了用氨三乙酸作活化剂锰催化高碘酸钾氧化罗丹明B褪色的新指示反应。
3
The indicator may be a disk that undergoes a chemical reaction to change color or a float that flips over to reveal a side having a different color.