China Dairy ›› 2026, Vol. 0 ›› Issue (8): 123-128.doi: 10.12377/1671-4393.26.08.17

• QUALITY CONTROL • Previous Articles     Next Articles

Research on a Method for the Detection of Sulfate Content in Raw Milk

LI Huijuan1, SONG Ge1*, GUAN Yunjie1, WANG Hui2, SUN Hongna2   

  1. 1. Mengniu Dairy(Shenyang)Co.,Ltd.,Shenyang Liaoning 110122;
    2. Inner Mongolia Mengniu Dairy(Group)Co.,Ltd.,Hohhot Inner Mongolia 011517
  • Published:2026-09-17

Abstract: [Objective] To research a quantitative method for the detection of sulfate content in raw milk.[Method] The spectrophotometry was used to detect the sulfate content in raw milk. The linear range,limit of detection,accuracy and precision of the method were verified.[Result] The correlation coefficient of the standard curve of the method was 0.9976,the limit of detection was 150 mg/L. Under different spiked concentrations(150-750 mg/L),the recovery rate was 80.64%-105.47%,and the relative standard deviation of repeatability was 2.47%-4.62%,which met the requirements of the “GB 5009.295—2023 National Food Safety Standard-General Principles for Validation of Chemical Analysis Methods”.[Conclusion] This research demonstrated high reliability and stability,and was capable of meeting the analytical requirements.It can be used for the quantitative detection of sulfate content in raw milk.

Key words: raw milk, sulfate, spectrophotometry

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