FOOD SCIENCE ›› 2013, Vol. 34 ›› Issue (4): 204-207.

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Simultaneous determination of heavy metal content in Strawberry with inductively coupled plasma atomic emission spectrometry (ICP-OES) digested by dry-ashing, wet digestion and microwave digestion respectively

yanxia zeng   

  • Received:2012-06-12 Revised:2013-01-10 Online:2013-02-25 Published:2013-01-29
  • Contact: yanxia zeng E-mail:yojohhit@126.com

Abstract: A subject for the simultaneous determination of the content of trace heavy metals including Cd, Cr, Cu and Pb in 5 spieces of Strawberry after dry-ashing, HNO3 digestion and microwave digestion by ICP-OES was established. The contents of Cd, Cr, Cu and Pb in Strawberry are Simultaneous determinated and compared with Standard tolerance.The results show that, the contents of trace heavy metals in five species of Strawberry samples doesn’t exceed the standard. The rates of recovery of testing rusults digested with dry-ashing, HNO3 digestion and microwave digestion are 85.3%-104.5%,93.2%-104.6%,92.8%-106.3% respectively. It can be also showed that RSD% is below to 20%. The methodological study showed that the method method is accurate and reliable for the detection for the contents of Cd, Cr, Cu and Pb while for the contents of As is not suitable.It can be concluded that the method is simple,fast and accurate for the quickly Simultaneous determination the contents of trace Cd, Cr, Cu and Pb in Strawberry by using inductively coupled plasma atomic emission spectrometry.It can be also concluded that the contents of trace heavy metals in Strawberry samples doesn’t exceed the standard, and that the possiblity of the heavy metal pollution in Strawberry is little.