id	keyword
eurjchem-2081	lng
eurjchem-2081	emp
eurjchem-2081	method
eurjchem-2081	hplc
eurjchem-2081	lng emp
eurjchem-2081	drugs
eurjchem-2081	degradation
eurjchem-2081	standard
eurjchem-2081	fld
eurjchem-2081	determination
eurjchem-2081	table