Application of solvent floatation to separation and determination of triazine herbicides in honey by high-performance liquid chromatography

Based on the foaming property of the honey, a rapid, simple, and effective method solvent floatation (SF) was developed and firstly applied to the extraction and separation of triazine herbicides in honey. The analytes were determined by high-performance liquid chromatography. Some parameters affecting the extraction efficiencies, such as the type and volume of extraction solvent, type of salt, amount of (NH4)2SO4, pH value of sample solution, gas flow rate, and floatation time, were investigated and optimized. The limits of detection for analytes are in the range of 0.16–0.56 μg kg−1. The recoveries and relative standard deviations for determining triazines in five real honey samples are in the range of 78.2–112.9 and 0.2–9.2%, respectively.