What does QA stand for?
QA stands for "quaternary ammonium ions"
How to abbreviate "quaternary ammonium ions"?
"quaternary ammonium ions" can be abbreviated as QA
What is the meaning of QA abbreviation?
The meaning of QA abbreviation is "quaternary ammonium ions"
What does QA mean?
QA as abbreviation means "quaternary ammonium ions"
