硝酸二乙铵和硝酸三乙铵气相色谱性质的研究

Study on Gas Chromatographic Propcstics of Diethylammonium and Tricthylammonium Nitrate

本文研究了硝酸二乙铵和硝酸三乙铵的气相色谱性质,其使用温度范围均为20～120℃,用PEG——20M作参比相,试验结果表明,硝酸二乙铵和硝酸三乙铵对具有大偶极矩分子的化合物或具有氢键成键能力的化合物选择性优于PEG——20M,对低碳醇及其异构体,单官能团取代苯衍生物提供良好的分离,对烃类保留能力差或根本不保留。

Diclhylammonium and iricihylarnmonium nitrate are studied as stationary phases for gas chromatography.They have a usable temperature range of abcut 20- 120c.Carbowax 20M is uaed as the standard polar phase.They are shown to behave as polar liquid with as strong as or stronger interaction than Carbowax 20M for test compounds having large dipolc or hydrogen-bonding function groups.The chromatography properties of the organic molten salts are illustrated for the separation of alcohols and monofunctional benzene derivatives.The retention of hydrocarbon on the phase is poor or even ncgligablc.