Multi-element analysis of water decoction of medicine food homology plants using inductively coupled plasma-tandem mass spectrometry

作者：Fu, Liang; Shi, Shu-Yun^*; Chen, Xiao-Qing

来源：Spectrochimica Acta Part B: Atomic Spectroscopy , 2017, 133: 34-39.

DOI：10.1016/j.sab.2017.05.001

• MFHP
• Water decoction
• Trace element
• ICP-MS/MS
• Dissolution ratio

The concentration of twelve trace elements in the water decoction of medicine food homology plants (MFHP) was determined by inductively coupled plasma-tandem mass spectrometry (ICP-MS/MS). Water decoctions of MFHP were analyzed directly using the MS/MS mode after acidification by 1% (v/v) nitric acid. The polyatomic interferences were eliminated by oxygen mass shift, oxygen on-mass, and ammonia mass shift. The accuracy of the method was verified by analysis of standard reference materials. This method was utilized to investigate the water decoction composition of 16 common Chinese MFHPs. The trace elements in the water decoctions of different MFHPs presented significantly different dissolution ratios. The dissolution ratio of V was the lowest (4.21%-14.86%), whereas Zn showed the highest dissolution ratio (24.87%-86.80%). In addition, the dissolution ratio of heavy metallic elements in most MFHP was equal to or was lower than 30%. Therefore, consumption of MHFP decoction could decrease the heavy metal intake associated with MFHP use and reduce the risk of heavy metal poisoning.

• 出版日期2017-7-1
• 单位中南大学; 长江师范学院