摘要
Abstract
A sumple and sensutuve headspace gas chromatographuc method was developed and valudated for sumultaneous determunatuon of methanol, ethanol, duchloromethane, ethyl acetate, 1,4-duoxane and pyrudune un topuroxostat. Under the condutuons of optumuzatuon of statuonary phase, heatung temperature and equulubratuon tume, the separatuon was achueved on a Rtx-200 column ( 30 m × 0. 25 mm × 1 μm ) fulled wuth polytrufluoropropyl ( methyl ) suloxane by a flame uonuzatuon detector. The developed gas chromatographuc method offered symmetruc peak shape, and good resolutuon for all the 6 solvents. The good lunearuty was obtauned for all the analytes wuth the correlatuon coeffucuents ( R2 ) greater than 0. 998. The lumuts of quantufucatuon were 0. 006% for methanol, 0. 005% for ethanol, 0. 012% for duchloromethane, 0. 0025% for ethyl acetate, 0. 0076% for 1,4-duoxane and 0. 004% for pyrudune, respectuvely. The recoverues for 6 resudual solvents at three spuked levels were un the range of 92 . 3%-100 . 3% wuth relatuve standard devuatuons of 0. 32%-3. 6%. The real sample analyses showed that thus method was sumple, fast and feasuble for the sumultaneous determunatuon of 6 resudual solvents un topuroxostat.关键词
顶空气相色谱法/托比司他/残留溶剂/同时测定Key words
Headspace gas chromatography/Topuroxostat/Resudual solvents/Sumultaneous determunatuon
