Chemical studies on tobacco smoke. XIX. Quantitative chromatographic determination of maleic hydrazide in cigaret smoke

1973 ◽  
Vol 45 (13) ◽  
pp. 2270-2273 ◽  
Author(s):  
Yu-Ying. Liu ◽  
Dietrich. Hoffmann
1979 ◽  
Vol 62 (1) ◽  
pp. 171-175 ◽  
Author(s):  
Alfred F Haeberer ◽  
Orestes T Chortyk

Abstract A method is presented for the determination of the plant growth regulator maleic hydrazide (MH; l,2-dihydro-3,6-pyridazinedione) in tobacco and tobacco smoke. Residues are converted to the bis(trimethylsilyl) derivative before analysis by gas-liquid chromatography. The method has been applied to cigarettes and condensed smoke and has been used to determine the per cent transfer of MH into cigarette smoke. Free MH residues could be determined directly on the tobacco samples, whereas total MH values were obtainable only after acid hydrolysis. In spite of large MH residues in tobacco, only 0.2% of the MH was transferred into smoke.


1976 ◽  
Vol 48 (1) ◽  
pp. 47-50 ◽  
Author(s):  
Dietrich. Hoffmann ◽  
Constantin. Patrianakos ◽  
Klaus D. Brunnemann ◽  
Gio B. Gori

1983 ◽  
Vol 66 (1) ◽  
pp. 8-12
Author(s):  
Delmar L Manning ◽  
Michael P Maskarinec ◽  
Roger A Jenkins ◽  
Amos H Marshall

Abstract Low molecular weight gas phase carbonyls in tobacco smoke are separated as 2,4-dinitrophenylhydrazones and determined by reverse phase high performance liquid chromatography. A trapping procedure is used whereby the gas phase carbonyls are reacted with the derivatizing reagent in a closed system. The deliveries of acetaldehyde and acrolein are compared with published data. In addition, propionaldehyde and acetone deliveries of selected cigarettes are reported.


1989 ◽  
Vol 72 (6) ◽  
pp. 1002-1006
Author(s):  
Michael W Ogden

Abstract A gas chromatographic method for determination of vapor phase nicotine in environmental tobacco smoke (ETS) was collaboratively studied by 6 laboratories. Nicotine is desorbed from XAD-4 sample tubes with ethyl acetate containing triethylamine and determined by gas chromatography with nitrogen-selective detection. Each collaborator received blind duplicate samples at each of 6 nicotine concentrations. Three concentrations were generated by spiking XAD-4 tubes with known amounts of nicotine; the remaining 3 concentrations were ETS samples obtained in a carefully controlled environmental chamber containing sidestream and exhaled mainstream smoke from 1R4F Kentucky reference cigarettes. Repeatability and reproducibility relative standard deviations ranged from 4.4 to 11.1% and from 7.0 to 11.1%, respectively, for nicotine concentrations evaluated (up to 6 ng/cu m). The method has been adopted official first action.


The Analyst ◽  
1989 ◽  
Vol 114 (9) ◽  
pp. 1005 ◽  
Author(s):  
Michael W. Ogden ◽  
Larry W. Eudy ◽  
David L. Heavner ◽  
Fred W. Conrad ◽  
Charles R. Green

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