Synthesis of 6-(2-Methoxynaphthyl)-2,3-dihydro-1,2,4-triazine-3-thione as a New Reagent for Spectrophotometric Determination of Copper

Figure 5

Limiting logarithmic plot for ratio of Cu(II) and reagent (MNDTT); (a) log abs versus log[MNDTT] and (b) log abs versus log [Cu].