Determination of Ten Kind of Trace Elements of Vegetables in Urumqi Autumn Market

This article determined the content of ten kind trace elements of vegetables in Xinjiang Urumqi autumn market by inductive coupling plasma mass spectrometry(ICP-MS),the trace elements include Pb,Cd,Cu and so on.The result indicated that,all kinds of vegetables include the beneficial trace element,such as calcium(Ca),magnesium(Mg),zinc(Zn),iron(Fe),copper(Cu),nickel(Ni),manganese(Mn),chromium(Cr) which are the human body needs;Within the investigated four kind of heavy metals trace elements lead(Pb),cadmium(Cd),chromium(Cr),copper(Cu),the element detection rate is 100%,the content of lead exceeds the allowed value in lettuce,Chinese cabbage and red cabbage,the overlimited rate respectively is 2.66,2.75 and 0.03 in three vegetables;.The content of cadmium exceeds the allowed value in Celery lettuce,Spinach lettuce,Chinese cabbage and Peking cabbage,and the overlimited rate has achieved 5.20,4.70,1.52,2.49 and 0.6;The element chromium completely exceeds the allowed value in ten kind of vegetables,the average content is 1.38 mg/kg,the equally overlimited rate is 1.76;Although the detection rate of copper is 100%,but none surpass the national standard,all are in security edible scope.