n.1.(Chem.) A white, crystalline, aromatic hydrocarbon, C14H14, consisting of two radicals or residues of toluene.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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A Microlyte 6 analyzer (Thermo Fisher Scientific Oy, Vantaa, Finland) equipped with calcium selective electrode based on solidstate PVC polymer using phenylene bis(ditolyl) phosphine oxide as ionophore and magnesium selective electrode based on tetraphenylborate salt of Mg-4,7-diphenyl-1,10-phenanthroline (1: 3) complex in o-nitrophenyl octyl ether in PVC matrix were implemented.