| 离子色谱法测定聚乳酸(PLA)降解产物中3种有机酸阴离子 |
| |
| 引用本文： | 庄昌清,岳红,谢丽萍.离子色谱法测定聚乳酸(PLA)降解产物中3种有机酸阴离子[J].中国无机分析化学,2012,2(3):58-59,86. |
| |
| 作者姓名： | 庄昌清 岳红 谢丽萍 |
| |
| 作者单位： | 西北工业大学理学院 应用化学系，西安 710129;西北工业大学理学院 应用化学系，西安 710129;国家茶叶质量监督检验中心（福建），福建 安溪 362400 |
| |
| 摘 要： | 为了建立聚乳酸(PLA)降解产物中3种有机小分子酸阴离子CH3CH(OH)COO-,CH3CH2COO-,CH3COO-]的离子色谱检验方法,将PLA降解第5天的产物过滤后用离子色谱检测,色谱条件:淋洗液为NaHCO3(6.0mmol/L);流速为1.0mL/min;检测器为电导检测器。实验表明对乳酸、甲酸、乙酸标准曲线的线性相关系数在0.991以上,3种离子的相对标准偏差(RSD)在0.9%～3.7%。方法具有方便、准确、成本低的特点。
|
| 关 键 词： | 离子色谱 聚乳酸 有机酸 阴离子 |
| 收稿时间： | 7/2/2012 12:00:00 AM |
| 修稿时间： | 8/6/2012 12:00:00 AM |
Determination of Three Kinds of Organic Acid Anion in PLA Degradation Product by Ion Chromatography |
| |
| ZHUANG Changqing,YUE Hong and XIE Liping.Determination of Three Kinds of Organic Acid Anion in PLA Degradation Product by Ion Chromatography[J].Chinese Journal of Inorganic Analytical Chemistry,2012,2(3):58-59,86. |
| |
| Authors: | ZHUANG Changqing YUE Hong and XIE Liping |
| |
| Affiliation: | 1.Department of Applied Chemistry, Northwestern Polytechnical University, Xi’an 710129,China; 2.National Tea Quality Supervision and Inspection Center (Fujian),Anxi, Fujian 362400,China) |
| |
| Abstract: | A new ion chromatographic method was established for determination of three kinds of small organic acid anions in the PLA degradation product.The PLA degradation products formed by five-days’ degradation reatction were filtered and then tested by ion chromatography.The chromatographic conditions were: sodium bicarbonate (6 mmol/L) as eluent, the flow rate of 1.0 mL/min, and conductivity detection. The correlation coefficients of the standard calibration curves for lactic acid, formic acid, and acetic acid were all above 0.991.The RSDs for the three kinds of anions were between 0.9% and 3.7%.This method is convenient, accurate, and low cost. |
| |
| Keywords: | ion chromatography(IC) PLA organic acid negative ion |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国无机分析化学》浏览原始摘要信息 |
|
点击此处可从《中国无机分析化学》下载全文 |
|
