An improved method for analyzing chlormequat and mepiquat in source waters by solid-phase extraction and liquid chromatography-mass spectrometry
文献类型：期刊论文
| 作者 | Yu, Zhiyong; Jin, Fen; Hu, Jianying; Zhang, Xi; Sun, Jingfang; Yang, Min |
| 刊名 | ANALYTICA CHIMICA ACTA
 |
| 出版日期 | 2010-09-23 |
| 卷号 | 678期号:1页码:90-95 |
| 关键词 | Liquid chromatography-mass spectrometry Plant growth regulator Source water Chlormequat Mepiquat |
| 中文摘要 | A liquid chromatography-mass spectrometry (LC-MS) method for the identification and quantification of chlormequat (CO) and mepiquat (MQ) in source waters with high sensitivity and specificity was established using WCX cartridges (150 mg/6 mL) for pre-concentration of the samples and using the CAPCELL PAK CR 1:4 (2.0 mm x 150 mm 5 mu m, SCX:C18 = 1:4) column containing strong cationic exchange resins and C18 for separation. The method could solve the problem for pre-concentrating ionic compounds from water samples and avoid the MS instrument fouling problem accompanied with the use of ion-pair reagents. After the optimization of analytical conditions, quantification was achieved in the positive electrospray ionization mode using selected ion monitoring. The samples were analyzed with multi-channel mode with quantification performed at 30 V cone voltage to ascertain the sensitivity and qualitative analysis performed at 60 V cone voltage simultaneously. The method detection limits (MDLs) of CQ and MQ in source water were determined to be 14 and 22 ng L(-1). Finally, the method was used to quantify CQ and MQ in several source waters, which gave a level ranging from below the quantitation limit to 28 ng L(-1). (C) 2010 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000282850800013 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21200]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Yu, Zhiyong,Jin, Fen,Hu, Jianying,et al. An improved method for analyzing chlormequat and mepiquat in source waters by solid-phase extraction and liquid chromatography-mass spectrometry[J]. ANALYTICA CHIMICA ACTA,2010,678(1):90-95. |
| APA | Yu, Zhiyong,Jin, Fen,Hu, Jianying,Zhang, Xi,Sun, Jingfang,&Yang, Min.(2010).An improved method for analyzing chlormequat and mepiquat in source waters by solid-phase extraction and liquid chromatography-mass spectrometry.ANALYTICA CHIMICA ACTA,678(1),90-95. |
| MLA | Yu, Zhiyong,et al."An improved method for analyzing chlormequat and mepiquat in source waters by solid-phase extraction and liquid chromatography-mass spectrometry".ANALYTICA CHIMICA ACTA 678.1(2010):90-95. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。