應用氣相層析法分離鑑定噴氣式化妝品中FREON 11及FREON 12等成分

SEPARATION OF FERON 11 AND FERON 12 IN SPRAY USING GAS CHROMATOGRAPGY

利用氣相層析法（GC），採用 Porapak S 為填充劑，管柱為玻璃管6' X 1/4' X 2mm 檢出器為火焰離子化檢出器（FID），分離並鑑別噴霧劑中 Freon 11, Freon 12, Propane, Isobutane, Butane 等五種賦壓推進劑。利用本法檢驗市售噴髮膠28件，結果發現，有2件含 Freon 12，占抽購檢體之7.1%，其它類賦壓推進劑則未檢出。

A Gas Chromatographic analysis was developed for simultaneous separation and determination of Freon 11, Freon 12 and another three kinds of propellent: Propane, Isobutane and Butane. Chromatographic separation was performed on a 6' x 1/4' x 2 mm glass column which was filled with porapak S and connected to a Flame Ionization Detector. This method was applied in the analysis of twenty eight samples of hair spray. It was found that only two case samples out of twenty eight (7.1% of 28) were Freon 12 positive and all other samples were Freon11 negative.