{TAIL ~ The method} 1 wherein said alkanolamine is selected from {HEAD ~ the group} consisting of ethanolamine and propanolamine 
{ TAIL ~ The method } 1 wherein said alkanolamine is selected from { HEAD ~ the group } consisting of ethanolamine and propanolamine
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH