Analytical MethodsDetermination of potassium ferrocyanide in table salt and salted food using a water-soluble fluorescent silicon quantum dots

Add time:08/20/2019    Source:sciencedirect.com

The addition of potassium ferrocyanide (K4[Fe(CN)6]) in table salt as anti-caking agent has a crucial role in preventing the formation of lumps. However, the excess of K4[Fe(CN)6] and its decomposers are harmful to both human health and environment. To date, there are still lack of suitable methods for simple and rapid analysis of K4[Fe(CN)6] in table salt and salted food. Herein, a novel fluorescent Si QDs probe for sensitive, selective and rapid detection of K4[Fe(CN)6] was synthesized by facile one-step strategy. Notably, the fluorescence of Si QDs could be remarkably quenched by K4[Fe(CN)6] via electrostatic interaction. Based on this phenomenon, a new method of determination of K4[Fe(CN)6] was established. A wide linear range was obtained from 0.05 to 8.0 µg/mL with a detection limit of 30 ng/mL. The established fluorescent new method was suitable for detecting K4[Fe(CN)6] in table salt and salted food samples with satisfactory results.

We also recommend Trading Suppliers and Manufacturers of Sodium ferrocyanide (cas 14434-22-1). Pls Click Website Link as below: cas 14434-22-1 suppliers

Prev:Development of zinc ferrocyanide ion exchange compounds for corrosion-inhibiting and sensing pigments
Next:Assessment of ferrocyanide intake from food-grade salt in the Korean population)