Rapid and in-situ detection of iodine and potassium ferrocyanide in table salt using enhanced-Multipass cavity Raman scattering.

The excess of iodine (I) and potassium ferrocyanide (K[Fe(CN)]) to table salt are harmful to both human health and environment. To date, there are still a lack of suitable methods for simple, rapid and in-situ to detect the I and K[Fe(CN)] contents in table salt. Herein, we employ a highly sensitive Raman spectroscopy, which is based on multiple reflection cavities and multi-directional signal collection optical systems, to detect the concentration of trace ions in table salt.

Qualitative and quantitative nondestructive determination of cyanide in water and distilled spirits by Raman integrating sphere.

Cyanide often forms as a byproduct during the fermentation process of distilled spirits, and excessive amounts can cause damage to health. Cyanide poisoning is also common in alcoholic beverages and water. Therefore, the cyanide content measurement in water and distilled spirits is essential.