id	keyword
eurjchem-438	nd nd
eurjchem-438	method
eurjchem-438	pesticides
eurjchem-438	min
eurjchem-438	analysis
eurjchem-438	column
eurjchem-438	precision
eurjchem-438	time
eurjchem-438	sample
eurjchem-438	table
eurjchem-438	concentration
eurjchem-438	agilent