| 黄艳军,张清智,吴爱芹.高效液相色谱法测定硫化胶中游离硫含量[J].橡胶科技,2018,16(8):53-56. |
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| 高效液相色谱法测定硫化胶中游离硫含量 |
| Determination of Free Sulphur Content in Vulcanizate by High Performance Liquid Chromatography |
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| DOI： |
| 中文关键词: 高效液相色谱 紫外检测器 硫化胶 游离硫含量 加标回收 |
| 英文关键词: high performance liquid chromatography UV detector vulcanizate free sulphur content standard recovery |
| 基金项目: |
| 中图分类号:O657.7＋2；TQ330.7＋1 |
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| 摘要点击次数: 703 |
| 全文下载次数: 479 |
| 中文摘要: |
| 采用高效液相色谱（HPLC）法测定硫化胶中游离硫含量。结果表明：以环己烷为萃取溶剂，试样在60 ℃下超声萃取30 min，采用Waters XBridge C18型色谱柱，以纯甲醇作为流动相等度洗脱，在263 nm检测波长下进行测试，硫标准品溶液质量浓度在1～100 μg·mL-1范围内时，测试结果的线性关系良好，相关因数为0.999 3，相对标准偏差为0.2%；硫化胶试样的加标回收率为100.33%～102.44%，相对标准偏差为0.1%。该方法试样前处理简单，准确度和精密度较高，普适性好。 |
| 英文摘要: |
| In this paper，the content of free sulphur in vulcanizate was determined by high performance liquid chromatography（HPLC）.In the test，cyclohexane was used as the extractant，and the samples were treated by ultrasonic extraction for 30 min at 60 ℃，separated under isocratic elution in Waters XBridge C18 type chromatographic column with pure methanol as a mobile phase，and tested at 263 nm detection wavelength.The linear relationship of the test result with the concentration of the sulfur standard solution was good within the concentration range of 1～100 μg·mL-1，the correlation coefficient was 0.999 3，and the relative standard deviation was 0.2%.The recovery rate of the vulcanizate sample was in the range from 100.33% to 102.44%，and the relative standard deviation was 0.1%.This method had the advantages of simple pretreatment，high accuracy and precision，and good universality. |
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