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Determination of phytosterols in edible oil by GC
  
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KeyWord:edible oil  phytosterol  GC  internal standard
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DU Jie Standard Investment（China）Co.，Ltd.，Shanghai 201103, China 
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Abstract:
      The edible oil was saponified, and the contents of brassicasterol, campesterol, stigmasterol and β-sitosterol were determined by GC method with cholesterol as internal standard. The results showed that determination of phytosterols in edible oil by GC- internal standard method was highly specific. The limits of detection and quantitation were 3.00-3.30 mg/100 g and 9.00-11.00 mg/100 g, respectively. The precision and recovery rate were 0.89% and 90.51%-110.25%, respectively. The method was reliable on analysing of four phytosterols in edible oil.
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