id	keyword
esrj-93725	earth
esrj-93725	elements
esrj-93725	earth elements
esrj-93725	method
esrj-93725	sample
esrj-93725	solution
esrj-93725	rock
esrj-93725	table
esrj-93725	standard
esrj-93725	time
esrj-93725	microwave
esrj-93725	interference
esrj-93725	mass
esrj-93725	value
esrj-93725	matrix
esrj-93725	heating
esrj-93725	determination