About: trace impurity

Premodifier: trace
Head noun: impurity

Same concepts

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
hydrogen sulfide	isap:51854304	0.796813
carbon monoxide	isap:57451852	0.728047
iron	isap:460429095	0.407878
h2	isap:140741322	0.398549
sulfur	isap:102254792	0.375715