The method of determining Ni, Cu and Pbi n urine with isotope dilution mass spectrometry(IDMS)is described.
介绍了采用同位素稀释质谱 法（IDMS）测定 冻干人尿样品中镍、铜、铅的含量。
The new method overcomes the limitations of established methods of IDMS in the quantitative analysis of trace gas.
该方法解决了已有同位素稀释质谱法在微量气体定量分析中的难题。
The new method overcomes the limitations of established methods of IDMS in the quantitative analysis of trace gas.
该方法解决了已有同位素稀释质谱法在微量气体定量分析中的难题。
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