›› 2013, Vol. 25 ›› Issue (1): 0-13.

• 论文 •    

水稻尼克酰胺铁载体的高效液相色谱—电喷雾质谱分析

李金辉1,蒋欣杭2,吴世华3,*
  

  1. 1浙江大学 农业生物与环境科技创新平台, 浙江 杭州 310058;2浙江大学 生命科学学院 仪器与技术服务平台, 浙江 杭州 310058;3浙江大学 生命科学学院 思源天然药物与生物毒素研究中心,浙江 杭州 310058
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-01-25 发布日期:2013-01-25

Quantification of phytometallophore nicotianamine (NA) in rice by HPL-MS/MS

LI Jinhui;JIANG Xinhang;WU Shihua;*   

  1. 1Institute of Agrobiology and Environmental Sciences, Zhejiang University, Hangzhou 310058, China; 2Equipment & Technology Service Platform, College of Life Sciences, Zhejiang University, Hangzhou 310058, China; 3Research Center of Siyuan Natural Pharmacy and Biotoxicology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-01-25 Published:2013-01-25

摘要: 采用高效液相色谱—电喷雾离子化质谱法分离并测定水稻中尼克酰胺(NA)的含量。高效液相色谱采用Zorbax SB-Aq C18柱(2.1×100 mm,3.5 μm),以0.5% 甲酸水溶液—甲醇为流动相,梯度洗脱,流速为0.3 mL·min-1。质谱采用离子阱质谱仪,电喷雾离子源,正离子扫描方式,以多反应离子监测(MRM)模式进行定量检测。结果表明,尼克酰胺在0.127~65 ng·20 μL-1(R2=09997)范围内呈良好的线性关系,相对标准偏差(RSD)为2.37%。

关键词: HPLC-MS/MS, 水稻, 尼克酰胺, 铁载体

Abstract: Phytometallophores play an important role in plant roots for uptaking insoluble mineral nutrients from soil via chelation. One of the important hytometallophores, nicotianamine (NA), is an only known low molecular mass Fe(II) complexing compound which can be found in all higher plant species. In this work, we developed a convincing method by using high performance liquid chromatography\|mass spectrometry mass spectrometry (HPLC\|MS/MS) to detemine the content of NA in rice. As a result, HPLC was performed on a Zorbax SB-Aq C18 column (2.1×100 mm,3.5 μm) with the 0.5% formate-acid solution-methanol as the mobile phase. The flow rate was 0.3 mL·min-1 with gradient elution. The mass spectrometry detection was performed on the eletronspray tandem mass spectrum in the positive mode and scanned in positive-ionization mode. Multiple reaction monitor was used to detect the NA concentration.The results indicated that NA had a good linear relationship within the range of 0.127-65 ng·20 μL-1(R2=0.9997). The relative standard deviation was 2.37%.

Key words: HPLC-MS/MS, rice, nicotianamine (NA), phytometallophores