Foodstuffs. Determination of benzene in soft drinks, other beverages and vegetable-based infant foods by headspace gas chromatography mass spectrometry (HS-GC-MS)

2017 ◽  
2007 ◽  
Vol 90 (2) ◽  
pp. 479-484 ◽  
Author(s):  
Xu-Liang Cao ◽  
Valerie Casey ◽  
Steve Seaman ◽  
Brett Tague ◽  
Adam Becalski

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.


2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Xiaotao Zhang ◽  
Ruoning Wang ◽  
Li Zhang ◽  
Jianke Wei ◽  
Yibin Ruan ◽  
...  

A method for simultaneous determination of acetaldehyde, propionaldehyde, acrolein, and crotonaldehyde in gas phase of cigarette mainstream smoke by headspace gas chromatography-mass spectrometry was developed and validated. Gas phase components of mainstream cigarette smoke were extracted with methanol, and then the samples were separated on a DB 624 (60 m, 0.32 mm x 1.8 mm) column, analyzed with headspace gas chromatography-mass spectrometry, and quantified by isotope internal standard. The linearities of acetaldehyde, propionaldehyde, acrolein, and crotonaldehyde were good (R2>0.992). The recoveries of acetaldehyde, propionaldehyde, acrolein, and crotonaldehyde were between 78.5% and 115%. The relative standard deviations were less than 10%. The limits of detection and limits of quantitation were 0.014 μg/cigarette ~0.12 μg/cigarette and 0.045 μg/cigarette ~0.38 μg/cigarette, respectively. The method had advantage of high sensitivity, it did not require derivatization of 2,4-dinitrophenylhydrazine and avoided a large number of adverse reactions during the process of derivation to improve the accuracy of result, and it was suitable for quantitative analysis of four aldehydes in gas phase of cigarette mainstream smoke.


2008 ◽  
Vol 56 (2) ◽  
pp. 571-576 ◽  
Author(s):  
Patricia J. Nyman ◽  
Gregory W. Diachenko ◽  
Gracia A. Perfetti ◽  
Timothy P. McNeal ◽  
Michael H. Hiatt ◽  
...  

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