HPLC同时测定电解液中吸氢剂和缓蚀剂

HPLC simultaneously determination of hydrogen absorbent and corrosion inhibitor in the electrolyte

本实验建立了高效液相色谱法检测电解液中吸氢剂对硝基苯甲醇、缓蚀剂间硝基乙酰苯的含量的方法。在HPLC-FL2200-Ⅱ上,采用Ultimate誖AQ-C18色谱柱,流动相为甲醇-水,检测波长为254 nm,流速为1.0 mL/min,温度为35℃。对硝基苯甲醇的线性关系为y=50075x+19824,R2=0.9999,平均回收率为98.50%;间硝基乙酰苯的线性关系为y=63907x+1185.2,R2=0.9998,平均回收率为98.94%。本方法简单,准确,重现性好,可用于电解液中吸氢剂对硝基苯甲醇、缓蚀剂间硝基乙酰苯的含量的测定。

The experiment established a method of determining 4-nitrobenzyl alcohol and 3- nitroacetophenone in the electrolyte by HPLC. By HPLC-FL2200-Ⅱ, with Ultimate^R AQ-C18, the mobile phase was methanol-water, the detection wavelength was 254 nm, the flow rate was 1.0 mL/min, the column temperature was 35 ℃. The linear equation of 4-nitrobenzyl alcohol was y=50075x＋19824, R2=0.9999, the average recovery was 98.50%. The linear equation of 3-Nitroacetophenone was y= 63907x＋1185.2, R2=0.9998, the average recovery was 98.94%. This method was simple, accurate and reproducible, and can be used for determining 4-nitrobenzyl alcohol and 3-nitroacetophenone in the electrolyte.