Application of ICP-MS to Determination of Heavy Metal Content of Heavy Metals in Two Kinds of N Fertilizer

作者：Rui Yu kui; Shen Jian bo; Zhang Fu suo^*

来源：Spectroscopy and Spectral Analysis, 2008, 28(10): 2425-2427.

DOI：10.3964/j.issn.1000-0593(2008)10-2425-03

• ICP-MS
• Nitrogen fertilizer
• Heavy metals
• Environmental safety

Environmental safety has been the focus worldwide, where involved are the pollutions of heavy metals, pesticides and persistent organic pollutants. Fertilizer has become one of the polluting sources of heavy metals, which are very deleterious to human health and environmental safety. Heavy metals are difficult to metabolize in human body and very harmful, so research on the pollution of heavy metals is considered increasingly important. The pollution sources of heavy metals include waste residue, waste water and exhaust gas from industry and automobile, and. garbage from human life. The heavy metals in fertilizer can endanger the human body by the crop containing heavy metals. Two kinds of nitrogen fertilizer were analyzed in terms of the content of heavy metals by ICP-MS, and the results showed that the content of 10 kinds of heavy metals (Al, Ti, Cr, Ni, Cu, Zn, As, Cd, Hg and Pb) in (NH4)(2)SO4 was 1 345.13, 35.12, 2 539.27, 287.26, 674.05, 270.79, 42.54, 22.13, 27.20 and 123.87 ng center dot g(-1) respectively; and in CO(NH2)(2) it is 71.59, 5.36, 1 167.71, 188.60, 7.46, 64.45, 10.55, 0.00, 0.09 and 3.71 ng center dot g(-1) respectively. All the data showed that CO(NH2)(2) contained much less heavy metals than (NH4)(2)SO4, so we should select CO(NH2)(2) as the nitrogen fertilizer in agricultural production.

• 出版日期2008-10
• 单位中国农业大学