科研之友
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摘要
Oxidative stress has been proposed as one of the potential causes for infertility in men. Retinol and alpha-tocopherol have an important role in the spermatozoa defences against oxidative stress. A method is described here for the simultaneous determination of retinol and alpha-tocopherol in human seminal plasma with a suitable sample preparation procedure to prevent retinol and alpha-tocopherol degradation. After adequate sample preparation, the samples were determined by reversed-phase column chromatography with UV detection. The analytical performance of this method was satisfactory. The intra-assay and inter-assay coefficients of variation were below 10%. The recoveries were as follows: 90.7% (CV 8.1%) for retinol and 98.2% (CV 4.8%) for alpha-tocopherol. No significant differences in both retinol and alpha-tocopherol concentration between the smokers and nonsmokers (15 +/- 7nm and 1.86 +/- 0.29 mu m versus 15 +/- 6nm and 1.93 +/- 0.45 mu m) were found. A selective high-performance liquid chromatography method for the determination of retinol and alpha-tocopherol in human seminal plasma was developed.
- 出版日期2014-6
- 单位重庆医科大学
