采用气相色谱-质谱（GC-MS）分析技术，选择离子检测法（SIM），开发出一种准确可靠、灵敏度高的测定奶粉及奶制品中三聚氰胺的新方法。
A new method for determination of melamine in milk powder and milk products by gas chromatography-mass spectrum with selected ion monitor(GC-MS/SIM) was established in this paper.
本文研究并比较了三种测定抗心血管病药尼群地平的方法：氰离子选择电极法、示波极谱法和紫外分光光度法。
This paper has studied and compared three methods of determination of cardiovascular drug, Nitrendipine: Cyanide selective electrode method, single sweep polarography and UV-spectrophotometric method.
采用氟离子选择电极法测定氰氨化钙炉料中氟化钙的含量，进行了条件和应用试验。
Calcium fluoride content in calcium cyanamide charging is determined by a fluoride ion selective electrode method, and its conditions and applications are tested.
采用氟离子选择电极法测定氰氨化钙炉料中氟化钙的含量，进行了条件和应用试验。
Calcium fluoride content in calcium cyanamide charging is determined by a fluoride ion selective electrode method, and its conditions and applications are tested.
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