Analysis of cyanide in beverages using the headspace-gas chromatography with nitrogen phosphorus detector

Cyanide is a gaseous poison which liberated from cyanide compounds such as potassium cyanide. In spite of high toxicity, are easily accessible for industrial use, and some contamination cases into beverages have occurred. For analysis cyanide, various analytical methods colorimetric been reported. Among those, headspace-gas chromatography-nitrogen phosphorus detection (HS-GC-NPD) known its easy pretreatment method quantitation ability. The application HS-GC-NPD to in blood specimens reported by many groups. However, comparison results experimental manipulations, addition acid, syringes used introduction samples the GC, amount sample introduced GC not clear. addition, there no detailed description about beverage samples. this work, we investigated manipulation manual applied optimized After optimization, acid with micropipette open system 100 μL headspace gas gastight syringe recommended. samples, although variations were larger than standard those could be compensated use acetonitrile an internal standard.