Determination of 6-Benzylaminopurine and Hg2+ in Bean Sprouts and Drinking Mineral Water by Surface-Enhanced Raman Spectroscopy

作者：Wang, Di; Liang, Fanghui; Ma, Pinyi; Yang, Qingqing; Gao, Dejiang; Song, Daqian; Wang, Xinghua^*

来源：Food Analytical Methods, 2016, 9(4): 934-941.

DOI：10.1007/s12161-015-0268-6

• 6-Benzylaminopurine (6-BA)
• Hg2+
• Surface-enhanced Raman spectroscopy (SERS)
• Beansprout
• Drinking mineral water

A novel method for the determination of 6-benzyladenine (6-BA) in bean sprouts and Hg2+ in drinking mineral water by surface-enhanced Raman spectroscopy (SERS) was described. 6-BA exhibits obvious SERS signal by using the substrate of silver nanoparticles (AgNPs), and the presence of Hg2+ could cause the decrease of SERS signal of 6-BA. The effects of type of aggregation agent, type and level of pH buffer solution, amount of AgNPs, mixing time, concentration of 6-BA, and reaction time on the SERS signals were investigated. Under the optimized experimental conditions, good linear responses were obtained for 6-BA and Hg2+ in the concentration ranges of 10-200 mu g L-1 and 5-200 mu g L-1, respectively. By the present method, the limits of detection (LODs) for the determination of 6-BA and Hg2+ are 3.3 and 0.20 mu g L-1, and the recoveries of 6-BA and Hg2+ in spiked samples are 85.5-113.0 % and 98.2-111.5 %, respectively.

• 出版日期2016-4
• 单位吉林大学