Below the aortic valve, on the left ventricular surface, a two centimeter-long vegetation was debrided and the left: ventricle and aorta rinsed with iodine solution.
The sediment was then placed in a plastic tube and fixed in an iodine solution (6.25 % iodine, 31.25 % potassium and 62.5 % distilled water).
If no lesions are visible, an iodine solution may be applied to the cervix to help highlight areas of abnormality.
Iodine solution iodine dissolved in an aqueous solution of potassium iodide reacts with the starch, producing a purple-black colour.
This 2% free iodine solution provides about one mg of free iodine per drop.
Starch is a substance common to most plant cells and so a weak iodine solution will stain starch present in the cells.
An iodine solution is produced, but is dilute and must be concentrated.
It is not to be confused with tincture of iodine solutions, which consist of elemental iodine, and iodide salts dissolved in water and alcohol.
