Microdetermination of zirconium using 6-chloro-3-hydroxy-2-(2' -furyl)-4<i style="mso-bidi-font-style: normal">H</i>-chromen- <span style="font-size:12.0pt;line-height:115%;font-family:"Times New Roman","serif"; mso-fareast-font-family:Calibri;mso-fareast-theme-font:minor-latin;mso-ansi-language: EN-IN;mso-fareast-language:EN-US;mso-bidi-language:AR-SA">4-one from alkaline solution</span>

Abstract

<span style="font-size:12.0pt;line-height:115%; font-family:" times="" new="" roman","serif";mso-fareast-font-family:calibri;="" mso-fareast-theme-font:minor-latin;mso-ansi-language:en-in;mso-fareast-language:="" en-us;mso-bidi-language:ar-sa"="">A simple, highly sensitive and selective method for determination of zirconium in trace amounts has been developed which is based on the reaction of 6-chloro-3-hydroxy-2-(2'-furyl)-4<i style="mso-bidi-font-style: normal">H</i>-chromen-4-one with the metal ion under alkaline conditions.The coloured complex formed is quantitatively extractable into carbon tetrachloride, whose λ_max lies at 428 nm. The procedure eliminates interference due to several metal ions and obeys Beer's law in the range 0.0-0.5 μg Zr ml^-1 with a Sandell sensitivity of 0.0015 μg Zr cm^-2.</span>