[Distribution of 33 elements in lung cancer tissues, paracancerous lung tissues and benign lung tissues of patients with lung cancer].

Objective: To analyze the contents and distribution of 33 elements in the samples of lung cancer tissues, paracancerous lung tissues and benign lung tissues of patients with lung cancer.

Methods: 14 samples of lung cancer tissue, paracancerous lung tissue and benign lung tissue were collected from the patients with lung cancer in the high lung cancer rate area of our country. The samples were determined by inductively coupled plasma mass spectrometry after microwave digestion.

[Determination of thirty trace elements in human plasma by microwave digestion-ICP-MS].

A method for determining 30 trace elements in human plasma was developed by using microwave digestion-ICP-MS. Under the optimized conditions the samples were analyzed by ICP-MS after microwave digestion. The double internal standard elements Rh and Re were used to compensate for matrix suppression effect and sensitivity drift.