Four metabolites were found in urine by mass spectrum analysis and most of them are hydroxides.
对尿中代谢产物进行质谱分析，发现有4种代谢物，以轻化产物为主。
参考来源 - Nolatrexed在动物体内的处置规律研究The accuracy of analysis for sample injection by one time is very high. The color spectrum and the mass spectrum analysis could carry out very effective segregation and analysis for 11 phosphate pesticide residues.
色谱及质谱分析条件实现了对11种有机磷农药的有效分离和分析。
参考来源 - 用气相色谱质谱同时测定蔬菜水果中11种有机磷农药残留的方法·2,447,543篇论文数据，部分数据来源于NoteExpress
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The results of mass spectrum analysis are discussed.
讨论了质谱分析结果。
The highest concentration of mercury was found in the antennal glands by mass spectrum analysis.
质谱分析表明，触角腺中汞的含量最高。
Thermal degradation of polystyrene was investigated with thermogravimetry-mass spectrum analysis (TG-MS).
采用热重质谱法研究了聚苯乙烯的热降解过程。
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