Meanings of ammonium ion in English

In this study, the quantity of ammonium ion was much more than that of nitrate ion.

A study on ion exchange kinetics and equilibrium isotherms of ammonium ion on natural Turkish clinoptilolite (zeolite) was conducted using a batch experiment technique.

Ammonium ion exchange from aqueous solution using clinoptilolite zeolite was investigated at laboratory scale.

This is probably because ammonium ions are competitive inhibitors, causing decreased reactivity for glutamine residues.

Surprisingly, monovalent sodium or ammonium ions, positioned in the product metal site, lowered the activation barrier.