Survey Results of Benzene in Soft Drinks and Other Beverages by Headspace Gas Chromatography/Mass Spectrometry

2008 ◽  
Vol 56 (2) ◽  
pp. 571-576 ◽  
Author(s):  
Patricia J. Nyman ◽  
Gregory W. Diachenko ◽  
Gracia A. Perfetti ◽  
Timothy P. McNeal ◽  
Michael H. Hiatt ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Soft Drinks ◽  
Gas Chromatography Mass Spectrometry ◽  
Headspace Gas Chromatography ◽  
Chromatography Mass Spectrometry ◽  
Headspace Gas ◽  
Survey Results

scholarly journals Determination of Benzene in Soft Drinks and Other Beverages by Isotope Dilution Headspace Gas Chromatography/Mass Spectrometry

2007 ◽  
Vol 90 (2) ◽  
pp. 479-484 ◽  
Author(s):  
Xu-Liang Cao ◽  
Valerie Casey ◽  
Steve Seaman ◽  
Brett Tague ◽  
Adam Becalski
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Isotope Dilution ◽  
Soft Drinks ◽  
World Health ◽  
Gas Chromatography Mass Spectrometry ◽  
Headspace Gas Chromatography ◽  
Chromatography Mass Spectrometry ◽  
Headspace Gas

Abstract An automated, simple, and reproducible method was developed for the determination of benzene in soft drinks, based on isotope dilution headspace gas chromatography/mass spectrometry in the selected-ion monitoring mode. The method was used to assess benzene levels in samples of 124 soft drinks and beverages. Benzene was not detected in 60% of the 124 products. The average benzene levels in 6 products exceeded the Canadian maximum acceptable concentration of 5 g/L for benzene in drinking water, and 2 of the 6 products had benzene levels above the World Health Organization guideline of 10 g/L. The highest level of benzene, 23 g/L, was found in a soft drink product specifically marketed to children.

scholarly journals Rapid and sensitive analysis of benzyl isothiocyanate in peel, pulp, and seeds of Carica papaya Linn. by headspace gas chromatography-mass spectrometry

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Yinzheng Ma ◽  
Yingying Wen ◽  
Jinping Chen ◽  
Yunxia Zhang ◽  
Haiying Zhang ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Carica Papaya ◽  
Orthogonal Design ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Headspace Gas Chromatography ◽  
Benzyl Isothiocyanate ◽  
Chromatography Mass Spectrometry ◽  
Headspace Gas

AbstractA rapid and sensitive headspace gas chromatography-mass spectrometry (HS-GC–MS) method was established for the determination of benzyl isothiocyanate (BITC) in the peel, pulp, and seeds of Carica papaya Linn. Tween 80 solution with a concentration of 0.002% (w/v) was chosen as a headspace medium for solving the poor solubility of BITC in water without using organic solvents and ensuring high headspace efficiencies. Extraction parameters had been evaluated and optimized by using an orthogonal design with an OA9(34) table. Optimal headspace conditions were obtained when vials were equilibrated at 80 °C for 20 min at a stirring speed of 375 rpm. The calibration curve obtained by using GC–MS was linear in a concentration range of 10–320 ng/mL. The recoveries of peel, pulp, and seeds ranged from 97.3 to 100.6% with RSDs less than 3.0%. The method is simple, rapid, sensitive, and environmentally friendly. It is suitable for analyzing BITC in papaya fruit and is expected to have important application potential in the extraction of water-insoluble volatile components in foods, plants, medicines, and other samples.

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