| 高效液相色谱法测定尼龙酸的组成 |
| |
| 引用本文： | 贾长英,李卫华,李家庆,唐丽华,张晓娟.高效液相色谱法测定尼龙酸的组成[J].石油化工应用,2006,25(3):32-33. |
| |
| 作者姓名： | 贾长英 李卫华 李家庆 唐丽华 张晓娟 |
| |
| 作者单位： | 1. 沈阳工业大学石油化工学院,辽宁,辽阳,111003
2. 辽阳石油化纤公司金兴化工厂,辽宁,辽阳,111003 |
| |
| 摘 要： | 建立了高效液相色谱法测定尼龙酸组成及其含量的方法。样品经定容过滤后进行色谱分析。采用的色谱条件:色谱柱 SB-Aq4．6mm×250mm;流动相:A液0．025mol·L-1 KH2PO4 -H3PO4缓冲溶液(pH2．75),B液甲醇,C液、D液均为超纯水;流速0．8mL·min-1,柱温40℃,示差折光检测器。采用该方法,丁二酸、戊二酸、己二酸三种组分的回收率均高于98％,相对标准偏差(n=6)小于1．5％,线性范围为0．1-100 mg·L-1(r=0．9999),检出限分别为0．5ng、0．5ng、1．0ng。该方法已应用于工业化生产控制中。
|
| 关 键 词： | 高效液相色谱 尼龙酸组成 视差折光检测 |
| 文章编号： | 1673-5285(2006)03-03 |
| 修稿时间： | 2006年3月30日 |
Determination of Binary Acid Composition in Nylon Acid by HPLC |
| |
| JIA Changying,LI Weihua,LI Jiaqing,TANG Lihua,ZHANG Xiaojuan.Determination of Binary Acid Composition in Nylon Acid by HPLC[J].Petrochemical Industry Application,2006,25(3):32-33. |
| |
| Authors: | JIA Changying LI Weihua LI Jiaqing TANG Lihua ZHANG Xiaojuan |
| |
| Abstract: | A method of HPLC with RID detection for the determination of binary acid composition in nylon acid was established. The method was carried out under the follow chromatographic conditions: SB - Aq chromatographic column (4.6mm×250mm);the mobile phase:A0.025mol·L-1 KH2PO4 - H3PO4 buffer solution (pH2. 75 ) ,B methanol, C,D superbly purified water;flow rate 0. 8mL·2min-1;column temperature 40℃. Average recoveries were greater than 98 % , RSDs ( n = 6 ) were less than 1.5%. Linearity was range in 0. 1 - 100 mg·L-1 with correlation coefficient of 0. 9999. Detection limits were 0. 5ng for SA and GA,1.0ng for ADA, respectively. This method has been used in the quality control of industrial production. |
| |
| Keywords: | high performance liquid chromatography nylon acid composition refractive index detection |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
