| 高效液相色谱法检测橡胶中的促进剂TMTD |
| Determination of Accelerator TMTD in Rubber by High Performance Liquid Chromatography Method |
| 投稿时间：2021-03-28 修订日期：2021-04-25 |
| DOI：10.12136/j.issn.1000-890X.2022.08.0618 |
| 中文关键词: 促进剂TMTD 橡胶 含量 液相色谱法 二极管阵列检测器 超声提取 |
| 英文关键词: accelerator TMTD rubber content HPLC DAD：ultrasonic extraction |
| 基金项目:海关总署科技计划项目（2017IK099） |
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| 中文摘要: |
| 研究采用高效液相色谱-二极管阵列检测器（HPLC-DAD）测定橡胶中促进剂TMTD含量的方法，所得的最佳试验步骤为：橡胶样品于常温下经丙酮超声提取30 min，提取2次，提取液合并后定容、过滤，采用体积比为50/50的乙腈/水作为流动相进行洗脱，在DAD波长为215 nm下进行HPLC-DAD检测。当促进剂TMTD标准工作液的质量浓度在0.5～10 mg·L-1范围内时，标准工作曲线的线性相关因数为0.999 8，空白样品的加标回收率大于81%，测定低限为2.0 mg·kg-1。 |
| 英文摘要: |
| A method for the determination of accelerator TMTD content in rubber by high performance liquid chromatography-diode array detector（HPLC-DAD） was studied.The best test steps obtained were as follows：the rubber sample was extracted by ultrasonic with acetone for 30 min twice at room temperature，the extraction solution was combined，fixed volume and filtered，then eluted with acetonitrile/water with a volume ratio of 50/50 as the mobile phase，and which was detected at DAD wavelength of 215 nm using HPLC-DAD.When the mass concentration of accelerator TMTD of standard working solution was in the range of 0.5～10 mg·L-1，the linear correlation coefficient of standard working curve was 0.999 8，the spiked recovery of the blank sample was greater than 81% in the blank sample，and the detection low limit was 2.0 mg·kg-1. |
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