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stormxuhao至尊木蟲 (知名作家)
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[求助]
液相色譜中，分離因子與相對(duì)保留值有什么區(qū)別？
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僅僅從計(jì)算方法上來講 兩者是一樣地 都可以化為兩種物質(zhì)的保留時(shí)間的比值 但是從原理上或者定義上來看 兩者有沒有什么區(qū)別 |
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guevara1967
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2樓2012-05-01 10:30:31
stormxuhao
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3樓2012-05-01 10:33:27
guevara1967
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感謝參與，應(yīng)助指數(shù) +1
stormxuhao: 金幣+10, ★★★★★最佳答案 2012-05-01 11:00:21
感謝參與，應(yīng)助指數(shù) +1
stormxuhao: 金幣+10, ★★★★★最佳答案 2012-05-01 11:00:21
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relative retention http://goldbook.iupac.org/R05277.html separation factor http://goldbook.iupac.org/S05614.html 仔細(xì)比較一下，似乎有些區(qū)別 |
4樓2012-05-01 10:51:26
guevara1967
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separation factor, in column chromatography The relative retention value calculated for two adjacent peaks (http://goldbook.iupac.org/MathML/S05614-1.png): http://goldbook.iupac.org/MathML/S05614-2.png By definition, the value of the separation factor is always greater than unity. The separation factor is also identical to the ratio of the corresponding distribution constants. The separation factor is sometimes also called the 'selectivity'. The use of this expression is discouraged relative retention, in column chromatography The ratio of the adjusted or net retention volume (time) or retention factor of a component relative to that of a standard, obtained under identical conditions: http://goldbook.iupac.org/MathML/R05277-1.png Depending on the relative position of the peak corresponding to the standard compound in the chromatogram, the value of may be smaller, larger or identical to unity. |
5樓2012-05-01 10:54:42
guevara1967
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【答案】應(yīng)助回帖
soundhorizo: ACI+1, 辛苦 2012-05-01 11:23:07
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separation factor, in column chromatography The relative retention value calculated for two adjacent peaks ():   By definition, the value of the separation factor is always greater than unity. The separation factor is also identical to the ratio of the corresponding distribution constants. The separation factor is sometimes also called the 'selectivity'. The use of this expression is discouraged relative retention, in column chromatography The ratio of the adjusted or net retention volume (time) or retention factor of a component relative to that of a standard, obtained under identical conditions:  Depending on the relative position of the peak corresponding to the standard compound in the chromatogram, the value of may be smaller, larger or identical to unity. |
6樓2012-05-01 10:57:00
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