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目的 对氟乙酸根阴离子的衍生物-氟乙酸五氟苄基酯(PFB-MFA)进行了气相色谱分析，以满足氟乙酰胺类鼠药化验工作的需要。方法 使用GC／ECD、GC／MS Scan、GC／MS SIM对该化合物的标准溶液进行了分析，得到了各种分析方法的校正曲线及检测限。结果 三种方法测定PFB-MFA的线性范围分别为GC／ECD 0.01～0.1ng／μl、GC／MS SCAN 1～100ng／μl、GC／MS SIM 5×10~(-3)～1ng／μl。三种方法对氟乙酸根阴离子的检测限分别为：GC／ECD1.31×10~(-4)ng／μl、GC／MS SCAN 0.13ng／μl、GC／MS SIM 1.76×10~(-4)ng／μl。结论 氟乙酸根阴离子的衍生物氟乙酸五氟苄基酯在GC／ECD及GC／MS上具有一定的线性范围，有非常高的灵敏度，可用于法庭科学的定性定量分析。
OBJECTIVE To conduct the gas chromatographic analysis of PFB-MFA, a derivative of fluoroacetate anion, to meet the needs of laboratory testing of fluoroacetamides. Methods The standard solutions of this compound were analyzed by GC / ECD, GC / MS Scan and GC / MS SIM, and the calibration curves and detection limits of various analytical methods were obtained. Results The linear range of PFB-MFA was 0.01 ~ 0.1ng / μl for GC / MS, 1 ~ 100ng / μl for GC / MS and 1 × 10 ~ (-3) ng / μl for GC / MS. The detection limits of the three methods for fluoroacetate anion were as follows: GC / MS 1.31 × 10 -4 ng / μl, GC / MS SCAN 0.13 ng / μl, GC / MS SIM 1.76 × 10 -4 ) ng / μl. Conclusion The derivative of fluoroacetate anion pentafluorobenzyl fluoride has a certain linear range on GC / ECD and GC / MS. It has very high sensitivity and can be used for qualitative and quantitative analysis of forensic science.