Determination of Thirty Three Elements in Lung Cancer Tissues of Patients with Lung Cancer by Microwave Digestion-ICP-MS
ZHANG Lin-lin1, MA Qian-li2, HUANG Yun-chao2, WU Guo-ping3, WEI Fu-sheng3*
1. The Civil and Environment Engineering School of University of Science & Technology Beijing，Beijing 100083, China 2. The Third Affiliated Hospital of Kunming Medical College, Kunming 650031, China 3. China National Environmental Monitoring Center, Beijing 100012, China
Abstract：A method for determining 33 elements in lung tissues of patients with lung cancer was developed by using vacuum freeze-drying microwave digestion-ICP-MS. The lung tissue samples were treated by vacuum freeze-drying equipment. After microwave digestion in HNO3-H2O2 solution system, the samples were diluted with the method of constant volume. Under the optimized conditions the samples were analyzed by ICP-MS. The double internal standard elements Rh and Re were used to compensate for matrix suppression effect and sensitivity drift. The analytical results showed that the detection limits of the 33 elements were 0.01-0.45 ng·mL-1. The national standard reference material GBW(E)080193 bovine liver was analyzed by the described method and the measured element values accorded with the standard values or the reference values. The relative standard deviation (RSD) of the method was 2.1%-14.3%. The recovery rates of the studied elements were 90.1%-117.5%. The contents of 33 elements in lung cancer tissues, paracancerous lung tissues and benign lung tissues of 6 patients with lung cancer were determined by the method. It was indicated that the method is rapid, simple and accurate for determining multi-elements in human lung tissue and other biological samples.
Key words：Microwave digestion;ICP-MS;Lung cancer tissue;Elements
张霖琳1，马千里2，黄云超2，吴国平3，魏复盛3* . 微波消解-ICP-MS法测定肺癌患者肺组织中33种元素[J]. 光谱学与光谱分析, 2009, 29(12): 3388-3391.
ZHANG Lin-lin1, MA Qian-li2, HUANG Yun-chao2, WU Guo-ping3, WEI Fu-sheng3* . Determination of Thirty Three Elements in Lung Cancer Tissues of Patients with Lung Cancer by Microwave Digestion-ICP-MS. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(12): 3388-3391.
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