A new method for determination of melamine in milk powder and milk products by gas chromatography-mass spectrum with selected ionmonitor(GC-MS/SIM) was established in this paper.
In this paper, the author states the monitor means to wash close circulative technical system and arsenic of furnace gas in high-interference ion conditions by using sulfuric acid water.
本文叙述了硫酸水洗封闭循环工艺系统液相及其炉气中痕量砷在高干扰离子条件下的监测方法。
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The plasma source ion implantation device consists of pulsed negative high voltage power, hot cathode arc discharge system, vacuum chamber and target stage, vacuum system and monitor system.