[Analysis of hexachlorobenzene in Food Red Nos. 104 (phloxine) and 105 (rose Bengal) by GC-ECD].

A simple and rapid method using electron capture detector gas chromatography (GC-ECD) was developed for the determination of hexachlorobenzene (HCB) in Food Red Nos. 104 and 105. The sample was dissolved in water and HCB was extracted with hexane.