I want to estimate Zinc in tablets. Can u suggest any Method? I have used chloroform dithizone method .In this method chloroform is a volatile compound so the absorbance is not stable in spectrophotometric method.
Dithizone extraction gives you Zn that is available to plants in a soil. I am not sure it will be suitable for determination of total Zn in tablets. You have to find another method for this purpose.