Sentences with phrase «lead oxide precursor»
«You need several control samples — a PbS nanocrystal with lead oxide precursor and another precursor that does not involve water during synthesis,» he says.
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All of Bullfrog Power's electricity comes from wind and low - impact hydro facilities that do not emit any carbon dioxide, nitrogen oxides and sulphur dioxide (precursors to smog), particulate matter (which gives rise to respiratory disease), heavy metals (mercury, lead, cadmium) and carcinogens.