By George Charalambous, Ernährungswissenschaftler Ägypten USA; American Chemical Society. Meeting
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Abatement, Proc. Int. 1D5 10. , J. Air Pollut. Control Assoc. 19, 773 (1969) 11. , Anal. Chem. 43, 1618 (1970) 12. , J. Chromatogr. 64, 25 (1972) 35 This page intentionally left blank A TECHNIQUE ORGANIC FOR THE DETERMINATION COMPOUNDS UNDER NON-EQUILIBRIUM Fouad Z. Saleeb General The was DuPont modified tile organic compounds as equilibrium is capable of in aqueous and strates temperature. flow to system the through the aroma The ment the is appropriate partition sample to be components in time between sub- and/or nitrogen to entry This in- to pass allows the out: various air/water data phase, allowed cell.
Into (Hamilton diverthe devices. , order to p e r m i t to signal and electrometer integrator equipped a Cat. pro- isolation The integrator, CS1-208, was a organic sampling in as g is flow was entry system system. detector to to by amount system the to by expressed where by to v a r i o u s carrier from up valve The control, nitrogen 916 and is n o r m a l l y line), prior inert placed the flow is p i c k e d the caused (2). of minute (dotted Model is d e s i g n e d carbon generally the per miniature sample is tubing It samples From system, a DuPont in v o l a t i l i t y schematic sample continuous the flame was oven 86412) was vide A 1.
The results are given in Table 5. APPLICATIONS Cocoa roast gases x] In a study which was aimed at finding a method for abating the odour pollution caused by some cocoa factories, the concentrations of pyrazines, acids, phenols and carbonyl compounds in the emission gases of a number of odour sources of a cocoa factory were measured (Figure 1 ) . Typical chromatograms of the carbonyl compounds and the pyrazines are showns in Figures 4a and 5, while in Figure 6 a chromatogram of a Tenax concentrate is given.