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| 高效液相色谱法测定硫化胶中4，4′-二氨基-3，3′-二氯二苯甲烷的含量 |
| Determination of 4，4′-diamino-3，3′-dichlorodiphenylmethane Content in Vulcanizate by High Performance Liquid Chromatography |
| Received:September 11, 2023 Revised:October 09, 2023 |
| DOI：10.12137/j.issn.2095-5448.2025.03.0161 |
| 中文关键词: 高效液相色谱 4，4′-二氨基-3，3′-二氯二苯甲烷 硫化胶 定量分析 |
| 英文关键词: high performance liquid chromatography 4,4 |
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| Author Name | Affiliation | E-mail | | HUANG Yanjun* | Stone Laboratory Co.,Ltd.,Qingdao,266045 | huangyj@stonelab.com.cn | | WEN Shao | Stone Laboratory Co.,Ltd.,Qingdao,266045 | | | ZHENG Li’na | Stone Laboratory Co.,Ltd.,Qingdao,266045 | | | YIN Qi | Stone Laboratory Co.,Ltd.,Qingdao,266045 | | | LIU Aiqin | Stone Laboratory Co.,Ltd.,Qingdao,266045 | |
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| 中文摘要: |
| 采用高效液相色谱法测定硫化胶中的4，4′-二氨基-3，3′-二氯二苯甲烷（MOCA）含量。采用丙酮作为萃取溶剂，在60 ℃下超声萃取60 min，提取硫化胶中MOCA的效果最佳。MOCA质量浓度在2.0～20.0 mg·L-1内与峰面积的线性关系良好，相关因数为0.999；平均加标回收率为95%～110%，相对标准偏差小于0.51%。该方法测定结果准确、重现性好。 |
| 英文摘要: |
| High performance liquid chromatography was used to determine the content of 4，4′- diamino-3，3′-dichlorodiphenylmethane（MOCA） in vulcanizate.Acetone was used as the extraction solvent，and ultrasonic extraction was carried out at 60 ℃ for 60 min，the extract effect of MOCA in vulcanizate was the best.When the mass concentration of MOCA was within the range of 2.0～20.0 mg·L-1，there was a good linear relationship with the peak area，with a correlation coefficient of 0.999.The average recovery rates were 95%～110%，with a relative standard deviation of less than 0.51%.This method provided accurate and reproducible results. |
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