|
|
|
| Effects of Petroleum Pollution on 16 Metallic Element Contents in Shrimp by a Microwave Digestion ICP-MS Method |
| CAO Xiangke,QIAN Qingzeng,ZHANG Jie,LIU Nan,WANG Hongwei |
|
|
|
|
Abstract The inductively coupled plasma mass spectrometry (ICP-MS) method was used for determina-tion of 16 element contents in shrimp in petroleum contaminated waters and non-petroleum contaminated waters .The samples were digested by microwave digestion ,through online adding the internal calibration of matrix effect and interface effect ,to correct equation and mass disturbance ,with the correlation coeffi-cient of above 0 .9994 in a determined elements calibration curve ,the detection limit of less than 1 .83 μg/L ,the precision of over 5 .98% ,and the recovery rate from 80 .5% to 119 .8% .The results showed that the contents of elements in the shrimp were affected by the petroleum pollution .There were significantly higher contents of Cr ,Mn ,Fe ,Co ,Ni ,Zn ,Cu ,As ,Se ,Cd ,and Pb in the shrimp in the oil polluted wa-ters than those in the shrimp in the non-oil polluted waters (P < 0 .05) .Compared with the shrimp in the non-oil polluted waters ,the shrimp in the oil polluted waters had significantly different contents of Mg , Al ,Ca ,Ag ,and Hg (P> 0 .05) .The findings indicate that the ICP-MS method is suitable for detection of multiple elements in seafood ,and provide scientific basis for seafood quality control and safety assess-ment .
|
|
Received: 25 May 2015
|
|
|
|
|
|
|
