Preparation, Testing and Certification of Reference Materials for Benzo(a)pyrene in Pepper Oil

doi:10.7506/spkx1002-6300-201004044

FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (4): 194-197.doi: 10.7506/spkx1002-6300-201004044

• Analysis & Detection • Previous Articles Next Articles

Preparation, Testing and Certification of Reference Materials for Benzo(a)pyrene in Pepper Oil

GUO Cui1，WANG Jian-hua2,1,*，DU Heng-qing2，CHEN Shi-shan2，ZE Xiang-jun2，SUI Yu-zhu1

1. Institute of Chemical Engineering and Environment, Qingdao University, Qingdao 266071, China；
2. Shandong Entry-Exit Inspection and Quarantine Bureau, Qingdao 266002, China

Received:2009-03-31 Revised:2009-08-13 Online:2010-02-15 Published:2010-12-29
Contact: WANG Jian-hua E-mail:whywrs@yahoo.com.cn

Abstract

Abstract:

A methodology regarding preparation and certification of the reference material for Benzo(a)pyrene in pepper oil was presented. Spiked pepper oil was packed in 100 bottles after homogenization and 10 of these 100 bottles were selected to test the homogeneity of the sample. Two batches of 10 samples from these 100 bottles were kept at 4 ℃ and 20 ℃, respectively. The stabilities of 20 bottles were analyzed e once a week for 8 consecutive weeks. Test results demonstrate the homogeneity and stability of that the pepper oil sample. Benzo(a)pyrene was determined by gas chromatography-mass spectrometry, based on isotope dilution. Uncertainty components, combined standard uncertainty and expanded uncertainty were also calculated, and the concentration of the sample was certified as (9.98 ± 0.914 )μg/kg, k = 2. The reference material is intended for use in the methodological validation and quality control for benzo(a)pyrene in edible vegetable oils

Key words: food safety, reference material, benzo(a)pyrene(Bap), pepper oil, quality assurance

CLC Number:

O657.63
O655

GUO Cui1，WANG Jian-hua2,1,*，DU Heng-qing2，CHEN Shi-shan2，ZE Xiang-jun2，SUI Yu-zhu1. Preparation, Testing and Certification of Reference Materials for Benzo(a)pyrene in Pepper Oil[J]. FOOD SCIENCE, 2010, 31(4): 194-197.

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Preparation, Testing and Certification of Reference Materials for Benzo(a)pyrene in Pepper Oil

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