Research on the Detection of Phospholipid Content in Plant Oil by Inductively Coupled Plasma Optical Emission Spectrometry
The traditional spectrophotometric method of GB/T 5537-2008 is limited by its quantitation limit and can not accurately quantify the content of phospholipids at lower concentrations.Therefore,in this paper,the inductively coupled plasma emission spectrometry in GB 5009.268-2016 was used to detect the phosphorus content in food,and the conversion relationship between phosphorus and phospholipid was determined,and then the phospholipid content in plant oil was obtained.The results showed that the limit of detection and limit of quantification of the method were 0.13 mg·kg-1 and 0.43 mg·kg-1,respectively,which provided a more accurate and stable method for the detection of phospholipids in plant oils,especially for the detection of low content phospholipids.
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