Determination of Seven Trace Elements in Bamboo Shoots by Microwave Digestion ICP-MS
Yong Yue
Abstract
Yong Yue
Abstract
A method for simultaneous analysis of seven elements (Cr,Cu,Zn,As,Cd,Hg,Pb) in bamboo shoot were established.The samples were pretreated through microwave digestion system with nitric acid solution,and then determined by inductively coupled plasma-mass spectrometry (ICP-MS).A good linearity of calibration curves was obtained,the correlative coefficients were 0.9937—1.0000.The limits of detection were between 0.005μg/L and 0.202μg/L.The average spiked recoveries ranged from 88.96% to 110.5%.RSD was less than 6.09% and the analytical results of national tomato leaf standard(GSBZ 51001-94)showed acceptable agreement with the certified values.This method is sensitive,reliable,rapid and accurate for the multi-elements determination of bamboo shoot by ICP-MS.
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A method for simultaneous analysis of seven elements (Cr,Cu,Zn,As,Cd,Hg,Pb) in bamboo shoot were established.The samples were pretreated through microwave digestion system with nitric acid solution,and then determined by inductively coupled plasma-mass spectrometry (ICP-MS).A good linearity of calibration curves was obtained,the correlative coefficients were 0.9937—1.0000.The limits of detection were between 0.005μg/L and 0.202μg/L.The average spiked recoveries ranged from 88.96% to 110.5%.RSD was less than 6.09% and the analytical results of national tomato leaf standard(GSBZ 51001-94)showed acceptable agreement with the certified values.This method is sensitive,reliable,rapid and accurate for the multi-elements determination of bamboo shoot by ICP-MS.
Key concepts: Microwave digestion, Nitric acid, Inductively coupled plasma mass spectrometry, Chemistry, Detection limit, Calibration curve, Chromatography, Analytical Chemistry (journal)