关键词: 微波消解, 电感耦合等离子体质谱法, 尖海龙, 微量元素

Abstract: [Objective] A method was established for the stimulataneous determination of trace elements in Syngnathus acus linnaeus by Inductively coupled plasma mass spectrometry., Meanwhile, it apply in determining 9kinds of trace elements in commercially available Syngnathus acus linnaeus. [Method] Nitric acid-hydrogen peroxide as the digestion system, and determined the concentrations of 9 kinds of trace elements(Cr, Co, Ni, As, Se, Pb, Cs, Cd, Rb) in 5 kinds of Syngnathus acus linnaeus by ICP-MS. [Results] The recovery of 9 kinds of trace elements ranged from 86% to 120%, RSD<4.64%, the correlation coeffcient r>0.999 4, It had a lower detection limit. Se element in Syngnathus acus linnaeus was a kind of essential trace element, However, the concentrations of Pb and Cd in 5 kinds of Syngnathus acus linnaeus were more than the limit values, In addition, the concentration of Cd element was lower than the reported values, but the concentrations of Cr and As elements were more than the reported values. [Conclusion] Microwave Digestion-ICP-MS is an effective method for simultaneous determination of trace elements in the Dragon.

Key words: microwave digestion, ICP-MS, Syngnathus acus linnaeus, trace elements