A gas-solid chromatographic technique using flame ionization detection and a Porapak Q column has been used for the identification and determination of ethanol, isopropanol, and acetone in pharmaceutical preparations.是什么意思_A gas-solid chromatographic technique using flame ionization detection and a Porapak Q column has been used for the identification and determination of ethanol, isopropanol, and acetone in pharmaceutical preparations.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句