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日用化学工业(中英文) ›› 2026, Vol. 56 ›› Issue (6): 821-826.doi: 10.3969/j.issn.2097-2806.2026.06.015

• 分析与检测 • 上一篇    下一篇

高效液相色谱-二极管阵列法用于食品用洗涤剂中多种防腐剂的测定

朱海荣,张娟*(),刘爽,孙文丹,康兆广,徐吉远   

  1. 山东省产品质量检验研究院山东 济南 250100
  • 收稿日期:2025-07-10 修回日期:2026-06-18 出版日期:2026-06-22 发布日期:2026-07-22
  • 基金资助:
    山东省产品质量检验研究院院内储备项目(2021ZJK023)

Determination of multiple preservatives in food-grade detergents by high-performance liquid chromatography-diode array method

Hairong Zhu,Juan Zhang*(),Shuang Liu,Wendan Sun,Zhaoguang Kang,Jiyuan Xu   

  1. Shandong Institute for Product Quality Inspection, Jinan, Shandong 250100, China
  • Received:2025-07-10 Revised:2026-06-18 Online:2026-06-22 Published:2026-07-22
  • Contact: *E-mail: ruyue95@163.com

摘要:

建立了一种同时测定食品用洗涤剂中甲基异噻唑啉酮等9种防腐剂的高效液相色谱法。采用乙醇溶解样品,经氮吹浓缩后用甲醇复溶样品提取食品用洗涤剂中的防腐剂,经超声、过滤后,采用甲醇和0.05%甲酸水为流动相进行梯度洗脱,以ZORBAX Eclipse XDB-C18 (250 mm×4.6 mm, 5 μm)为色谱分离柱,进样量为10 μL,流速为0.9 mL/min,在280 nm波长下检测甲基异噻唑啉酮、甲基氯异噻唑啉酮和苯氧乙醇,在254 nm波长下检测1, 2-苯并异噻唑啉-3-酮、对羟基苯甲酸甲酯、对羟基苯甲酸乙酯、对羟基苯甲酸丙酯和对羟基苯甲酸丁酯,在230 nm波长下检测苯甲酸钠。方法学验证实验表明,甲基异噻唑啉酮等9种防腐剂在0.5~20.0 μg/mL质量浓度范围内呈现良好线性,相关系数(r)均在0.999以上,当取样量为1 g时,方法检出限在0.12~1.0 mg/kg之间,方法定量限在0.40~3.0 mg/kg之间,低中高三种水平下的加标回收率在87.6%~108.5%之间,相对标准偏差在3.4%~7.8%之间。研究结果表明,该方法准确度高,稳定性好,适用于市售食品用洗涤剂中9种防腐剂的含量测定。

关键词: 食品用洗涤剂, 防腐剂, 高效液相色谱

Abstract:

A high-performance liquid chromatography method was established for the simultaneous determination of nine preservatives in food-grade detergents, including methylisothiazolinone, in food-grade detergents. The preservatives were extracted from the detergent using ethanol, solvent-exchanged to methanol using a parallel concentrator, and then subjected to ultrasonication and filtration. Gradient elution was performed using methanol and 0.05% aqueous formic acid solution as the mobile phase. Chromatographic separation was achieved on a ZORBAX Eclipse XDB-C18 column (250 mm×4.6 mm, 5 µm) with an injection volume of 10 µL and a flow rate of 0.9 mL/min. The detection wavelength was set at 280 nm for methylisothiazolinone, methylchloroisothiazolinone, and phenoxyethanol; 254 nm for 1, 2-benzisothiazol-3-one, methylparaben, ethylparaben, propylparaben, and butylparaben; and 230 nm for sodium benzoate. Method validation demonstrates good linearity for all nine preservatives within the range of 0.5-20.0 µg/mL, with correlation coefficients greater than 0.999. The limits of detection range from 0.12 to 1.0 mg/kg, and the limits of quantification range from 0.40 to 3.0 mg/kg. Spiked recovery tests at low, medium, and high concentration levels yield recoveries between 87.6% and 108.5%, with relative standard deviations ranging from 3.4% to 7.8%. The method is accurate, reliable, and suitable for the quantitative determination of the nine preservatives in food-grade detergents.

Key words: detergent for food use, preservative, high performance liquid chromatography

中图分类号: 

  • TQ649