Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (5): 901.doi: 10.7503/cjcu20180531

• Analytical Chemistry • Previous Articles     Next Articles

Preparation of SiW11 Incorporated SiO2 Nanofibers(SiW11/SiO2) and Its Application in the Analysis of Polyamines in Arabidopsis

CAI Jiao, YU Qiongwei, HE Xiaomei, XU Jing, DING Qiong, FENG Yuqi*()   

  1. Key Laboratory of Analytical Chemistry for Biology and Medicine, Ministry of Education, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
  • Received:2018-07-27 Online:2019-04-18 Published:2019-04-18
  • Contact: FENG Yuqi E-mail:yqfeng@whu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.31671929, 31670373).

Abstract:

SiW11 incorporated SiO2 nanofibers(SiW11/SiO2) was prepared by electrospinning technology. The mass of incorporated SiW11 accounted for 7.83% of nanofibers. SiW11/SiO2 nanofiber possessed uniform structure with the diameter about 450 nm, and was negative charged in the pH range of 1.0—11.0. Compared with SiO2 nanofibers, the SiW11/SiO2 nanofiber exhibited stronger cation-exchange interactions to extract PUT and CAD. Under the optimized condition, an in-syringe dSPE-UHPLC-MS/MS method for rapid and selective detection of polyamines from plants was established. The limits of detection(LODs) for the target CAD and PUT ranged from 0.5 ng/mL to 0.9 ng/mL, and the linear range was 10—1000 ng/mL and 20—1000 ng/mL with determination coefficients(R2) higher than 0.9950. The recoveries ranged from 87.5% to 111.3% with relative standard deviations(RSDs) of 1.9%—7.2%. The proposed method can be used to detect the trace CAD and PUT in Arabidopsis.

Key words: Polyoxometalate(POM), SiW11/SiO2, Electrospinning technology, Insyringe dSPE, Amine compound

CLC Number: 

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