FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (10): 176-178.

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Extract-Spectrophotometry Rapid Determination of Boric Acid in Sauce

 HUANG  Hua-Jun, YU  Yu-Juan, XI  Xing-Lin, XIE  Jun-Xian   

  1. Food Inspection Laboratory of Guangzhou Entry-Exit Inspection and Quarantine Bureau
  • Online:2005-10-15 Published:2011-09-25

Abstract: A spectrophotometry method is established to rapidly determine boric acid in sauce. boric acid in sauce is extracted with 2-ethyl-1,3-hexanediol-chloroform. Boric react with curcuma forming rose-bule dye.Beel’ law is obeyed in the range of 5~ 500μg/ml with r =0.9997.The repeatability is satisfying.

Key words: extract, spectrophotometry, boric acid, sauce, curcuma