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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Determination of the presence of benzene in vitamin drinks using headspace - solid phase microextraction and gas chromatography - mass spectrometry

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2007, v.20 no.3, pp.237-245


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Abstract

The presence of benzene in 31 products of vitamin drinks purchased from 20 retail outlets was determined using headspace solid phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS). The sample (25 ml) was stirred at 1200 rpm for 4 min using a magnetic bar with a <TEX>$100{\mu}m$</TEX> SPME fiber as an adsorbent for benzene which was then desorbed from the fiber for 1 min in the GC injector. Quantitation was achieved using the standard addition method. The limit of detection was determined as 0.56 ng/ml and over a concentration range 0-40 ng/ml the coefficient of correlation was greater than 0.999. The concentration of benzene in the drinks examined was in the range not detectable to 47.35 ng/ml. Benzene was detected in 15 of the drinks with concentration in 5 of them greater than 10 ng/ml which is the limit set for the presence of benzene in the Drinking Water Regulations. The concentrations of benzene in the 5 drinks which exceeded the limit of 10 ng/ml were 16.99, 35.14, 16.03, 47.35 and 14.28 ng/ml respectively.

keywords
Benzene, vitamin drink, SPME


Reference

1

(2006.3.6.) 국민일보 2006.3.6, 국민일보

2

http://www.ewg.org/issues/toxics/20060228/index.php,

3

http://www.beveragedaily.com/news/ng.asp?id,

4

http://www.epa.gov/safewater/dwh/c-voc/benzene,

5

http://www.foodanddrinkeurope.com/news/ng.asp?id,

6

http://kfda.go.kr/open_content/kfda/news/notice_view.php?seq=344,

7

http://www.ecofem.or.kr/bbs/board.php?bo_table=news,

8

http://www.hc-sc.gc.ca/fn-an/securit/chem-chim/benzene/,

9

Korean Women's Environmental Network 보도자료,

10

Janusz Pawliszyn, (1999) Applications of solid phasemicroextraction, Department of Chemistry Universityof Waterloo

11

Janusz Pawliszyn, (2004.04) SOLID-PHASE MICROEXTRACTION:Theory and Practice, Department of Chemistry University of Waterloo

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