The pure sample that is run next to a tested substance to determine if it is a component is called : A reference value
What is a pure sample ?
A pure sample is chemical substance which possess distinct chemical properties while having a constant and definite composition. To determine if a sample is pure or impure, its' property such as melting point is compared with an established reference data.
Hence we can conclude that The pure sample that is run next to a tested substance to determine if it is a component is called : A reference value
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