电镀液中间苯三酚和苄叉丙酮的高效液相色谱法测定

Determination of Phloroglucinol and Benzylideneacetone in Electroplate Liquid by High Performance Liquid Chromatography

建立了同时测定电镀液中间苯三酚和苄叉丙酮的高效液相色谱分析方法。采用Phenomemex C18色谱柱（250×4.6mm,5μm）,流动相为甲醇-异丙醇-水-辛烷磺酸钠（75∶25∶900∶1,V/V/V/m）,流速1.0mL/min;检测波长270nm;柱温40℃。间苯三酚和苄叉丙酮均在0.01~0.50mg/mL范围内,峰面积与其浓度呈良好的线性关系,相关系数分别为0.9983和0.9986,检出限分别为3μg/mL和5μg/mL,平均加标回收率分别为98.2%和101.8%。该方法简便、快速、准确,适合用于电镀液中间苯三酚和苄叉丙酮的质量控制。

A method was established for the determination of phloroglucinol and benzylideneacetone in electroplate liquid by high performance liquid chromatography. The separation was performed on a Phenomemex C18 column （250 × 4. 6 mm, 5 μm） with methanol-isopropanol-water-octanesulfonic acid sodium（75：25： 900：1,V/V/V/m） as the mobile phase at a flow rate of 1. 0 mL/min. The detection wavelength was 270 nm and the column temperature was 40 ℃. The standard curves show a good linearity over the concentration range of 0. 010-0.50 mg/mL,and the correlation coefficients are 0. 9983 and 0. 9986, and detection limits are 3 μg/mL and 5 μg/mL, respectively. The average recoveries are 98.2% for phloroglucinol and 101.8% for benzylideneacetone. The method is simple,quick and accurate and could potentially be used for the quality control of phloroglucinol and benzylideneacetone in electroplate liquid.