Research Article

A Rapid Extractive Spectrophotometric Method for the Determination of Tin with 6-Chloro-3-hydroxy-2-(2′-thienyl)-4-oxo-4H-1-benzopyran

Figure 2

Job’s method of continuous variations of Sn(II) and CHTB. Curve A: 435 nm, Curve B: 410 nm, and Curve C: 450 nm.
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