摘要
本文采用永停法测定脂肪乳剂的过氧化值,并对其方法条件进行了研究。应用永停法测定脂肪乳剂的过氧化值较采用淀粉脂示剂法终点清楚、准确,该方法灵敏度(以测得乳剂最小过氧化值(POV)_(min)为度)为0.032±0.001meq/L;重现性好,其变异系数约小于1%;对碘的回收率为99.22±0.36%。研究了影响测定的因素,选择出应用本法较理想的实验条件。
The peroxide values(POV) of intravenous fatty emulsion were determined usingdead-stop titration. Studies were made of the conditions of the method. The end pointat which dead-stop titration determines POV of fatty emulsion was sensitive andaccurate, in comparison with amylum indicator the sensitivity(calculated on the basisof (POV)_(min) of the emulsion) being 0.032±0.001meq/l. Reproductivity was alsosatisfactory CV was less than 1%. Reovery of iodine was 99.22±0.36%. Optimalexperimental conditions for using dead-stop titration were selected.
关键词
脂肪乳剂
过氧化值
永停法
Fatty emulsion
Dead-stop titration
Peroxide values
