第 35 卷第 6 期 |  | Vol. 35 No. 6 | 2005 年 12 月 | Dec 2005 |
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所屬欄目:其它
氣相色譜中保留指數隨溫度變化規律的研究 |
彭紅建; 胡薏冰(中南大學(xué)化學(xué)化工學(xué)院; 湖南長(cháng)沙) |
摘 要:根據保留指數隨溫度變化的關(guān)系式得出保留指數隨溫度變化的三種規律,運用氣相色譜實(shí)驗獲得了較好的驗證;并從色譜熱力學(xué)函數分析了保留指數隨溫度變化規律的主要原因是由于在色譜分離過(guò)程中不同的熵變和焓變所造成的。 |
關(guān)鍵詞:保留指數; 色譜熱力學(xué)函數 |
中圖分類(lèi)號:O657.7 文獻標識碼:A 文章編號:1009-9212(2005)06-0063-03 |
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Study on law of retain indices with temperature variation in gas chromatography |
PENG Hong-jian; HU Yi-bing(College of Chemistry and Chemical Engineering; Central South University; Changsha 10083; China) |
Abstract:In this paper,three laws of retain indices with temperature variation were deduced from the formula about retention index with temperature variation,and validated very well by gas chromatography experiment.The changing law of retention index with temperature from chromatographic thermal function resulted from the variation of the different entropy and enthalpy during the chromatographic separation. |
Key words:retention index; Chromatographic thermal function |
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基金項目:湖南省自然科學(xué)基金資助項目(No:04FJ2002)
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收稿日期:2005-07-11
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