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日用化学工业（中英文）

日用化学工业（中英文） ›› 2025, Vol. 55 ›› Issue (1): 104-109.doi: 10.3969/j.issn.2097-2806.2025.01.013

• 分析与检测 • 上一篇    下一篇

高效液相色谱法测定α-烯基磺酸盐中的磺内酯

张红1,3,姚晨之1,2,3,*(),薛伟1,2,曹圣悌1,公培龙2   

  1. 1.中国日用化学工业研究院，山西 太原 030001
    2.中轻检验认证（太原）有限公司，山西 太原 030001
    3.功能性表面活性剂山西省重点实验室，山西 太原 030001
  • 收稿日期:2024-03-02 修回日期:2024-12-31 出版日期:2025-01-22 发布日期:2025-01-23
  • 基金资助:
    中国轻工集团公司科技创新基金项目(ZQ2022JC-GG02);溢多利研究基金资助项目(VTR 2021);自然堂研究基金资助项目(自然堂2021)

Determination of sultones in α-olefin sulfonate by high performance liquid chromatography

Hong Zhang1,3,Chenzhi Yao1,2,3,*(),Wei Xue1,2,Shengti Cao1,Peilong Gong2   

  1. 1. China Research Institute of Daily Chemical Industry, Taiyuan, Shanxi 030001, China
    2. Sinolight Inspection & Certification （Taiyuan） Co., Ltd., Taiyuan, Shanxi 030001, China
    3. Shanxi Key Laboratory of Functional Surfactants, Taiyuan, Shanxi 030001, China
  • Received:2024-03-02 Revised:2024-12-31 Online:2025-01-22 Published:2025-01-23
  • Contact: E-mail: 13835158254@163.com.

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摘要： 建立了高效液相色谱法测定α-烯基磺酸盐中磺内酯的定量分析方法，并用该方法对市售4批α-烯基磺酸盐样品进行风险监测。样品经水和乙醇溶解，溶解后用石油醚萃取。萃取物溶于正己烷与异丙醇的混合溶液中。采用高效液相色谱法，以正己烷和异丙醇为流动相进行等度洗脱。二者体积比8:2，流速为2.0 mL/min，Inertsil CN-3柱（250 mm×4.6 mm×5 µm）色谱柱分离，进样量为20 µL，柱温为25 ℃。检测器为蒸发光散射检测器。漂移管温度为80 ℃，载气流速为2.0 L/min。外标法定量。结果显示：磺内酯在80~200 μg/mL质量浓度范围内呈良好线性关系，检出限为5.25 μg/mL，相关系数大于0.989，相对标准偏差为1.01% （n=6）。磺内酯的加标回收率为102.82%~108.24%。该方法分离效果好，线性关系好，操作简便，灵敏度高，准确度和重复性好。该方法能快速、准确地测定α-烯基磺酸盐中磺内酯的残留量。

关键词: 高效液相色谱, 蒸发光散射检测器, α-烯基磺酸盐, 磺内酯

Abstract:

A method for the determination of sultones in α-olefin sulfonate by high performance liquid chromatography （HPLC） was developed. This method was used to monitor the risk of 4 batches of α-olefin sulfonate samples on the market. The samples were dissolved in water and ethanol, and then extracted with petroleum ether. The extracts were dissolved in the mixed solution of n-hexane and isopropyl alcohol, and the equal degree elution was performed using n-hexane and isopropyl alcohol as the mobile phase by high performance liquid chromatography. The volume ratio of n-hexane to isopropyl alcohol was 8:2.The extracts were separated by Inertsil CN-3 column （250 mm×4.6 mm×5 µm） at the flow rate of 2.0 mL/min. The injection volume was 20 µL and the column temperature was 25 ℃. The detector was the evaporative light scattering detector. The temperature of the drift tube was 80 ℃, and the flow rate of carrier gas was 2.0 L/min. The quantitative method was external standard method. The results show that the mass concentration of sultones in the range of 80-200 μg/mL shows a good linear relationship, and the detection limit is 5.25 μg/mL with the correlation coefficient greater than 0.989. The relative standard deviation is 1.01% （n=6）. The recoveries of sultones are 102.82%-108.24%. The method has good separation effect, good linear relationship, simple operation, high sensitivity, and good accuracy and repeatability. The method can quickly and accurately measure the residual amount of sultones in α-olefin sulfonate.

Key words: high performance liquid chromatography, evaporative light scattering detector, α-olefin sulfonate, sultones

中图分类号: 

  • TQ423