并比较了正离子化学电离方式和负离子化学电离方式测定氯化苦的灵敏度。
The sensitivity for the measurement of chloropicrin by the modes of positive ion and negative chemical ionization was compared.
由于传统的DBD在气体电离方法方面存在许多问题，致使大气压条件下放电空间内气体的电离度很低，无法满足非平衡等离子体化学工程的需要。
There are many unsolved problems in conventional DBD gas ionization technique, resulting in lower gas ionizability, which cannot be used in non-equilibrium plasma chemistry.
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