Pre-colunm derivatization

• 柱前衍生化

Pre-colunm derivatization的用法和样例：

例句

1. Degradation dynamics and final residues of hymexazol in Polygonum capitatum Buch were estimated by GC-FPD with pre-column derivatization.
   采用柱前衍生气相色谱法测定广枯灵中恶霉灵在中药材头花蓼上的残留消解动态和最终残留量。
2. Autosampler can be programmed into the sample, used for pre-column derivatization, automatic pre-column sample dilution, automatic mixing and other complex sampling methods.
   自动进样器可进行编程进样，用于进行柱前衍生，柱前样品自动稀释，自动混合等复杂进样方式。