Development and validation of the quantitative determination procedure of iodine in the iodides form in the kelp thallus by the ionometry method.

Introduction: Iodine is an important compound in the kelp thallus; it should be determined to control the quality of crude herbal drugs of sp. The ionometry method is perspective iodine (in the iodides form) determination method in the crude herbal drugs; it is characterized by the availability and relative cheapness of iodide-selective electrodes and equipment in general. This method provides an effective combination of the determination step with the fast, simple, and safe step of sample preparation.