Separation and Identification of Phenols in Automobile Exhaust by Paper and Gas Liquid Chromatography.

Barber, Ethel D.; Sawîckî, Eugene; McPherson, S. P.

doi:10.1021/ac60219a019

Cited by 32 publications

(3 citation statements)

References 10 publications

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“…It seems to us that up to present the gasoline constituents being present in auto exhaust gases have been investigated (11)(12)(13)(14) with different methods and quite separately from the organic exhaust components formed only in the hot motor (15,16). This caused us to try analyze simultaneously both groups of exhaust components.…”

Section: Auto Exhaust Gasmentioning

confidence: 99%

Trace Analysis on Capillary Columns. Selected Practical Applications: Insecticides in Raw Butter Extract; Aroma Head Space from Liquors; Auto Exhaust Gas

Grob¹,

Grob

1970

Journal of Chromatographic Science

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Trace analysis on capillary columns becomes feasible provided appropriate injection techniques without stream splitting are used. To demonstrate potentialities and limitations of the methods, we investigated practical applications, the conditions of which were as dissimilar as possible. Insecticides in dairy products can be estimated by direct analysis of the raw petrol ether extract, without previous purification by column chromatography. 2-4 9 1 of extract are injected without splitting en a short inlet capillary fitted in a separate injection bloc. The inlet capillary is then connected to the capillary column mounted in the column oven with electron capture detector. Analysis is started by rapid heating to a constant temperature or by temperature programming resp. Head space analysis is another case in which trace components are important. Whereas several workers reported trapping of head space vapors in capillaries at low temperatures, we emphasize avoiding candensation, e.g. of water vapor, in the capillary. Al] sampling is done, therefore, near the original temperature of the head space material, i.e. at room temperature. In the case of coqnac aroma analysis in which most of the water and ethanol vapor are vented through the inlet capillary, the influences of most sampling variables-gas volume, length of inlet capillary-are studied. In the analysis of auto exhaust gas, again, bypassing of water is an important detail. In additien to hydrocarbons originating directly from the fuel as investigated by several authors, we found many combustion and conversion products, primarily naphthaline derivatives and phenols.

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Section: Auto Exhaust Gasmentioning

confidence: 99%

Trace Analysis on Capillary Columns. Selected Practical Applications: Insecticides in Raw Butter Extract; Aroma Head Space from Liquors; Auto Exhaust Gas

Grob¹,

Grob

1970

Journal of Chromatographic Science

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“…Paper chromatography has been used to identify a number of carbonyl compounds in automobile exhaust (20). Phenolic compounds in auto exhaust have been analyzed by spectrophotometric and chromatographic methods (21,252). Analyses were made of several vehicles operated on liquefied petroleum gas for carbon monoxide, nitrogen oxides, and hydrocarbons (263).…”

Section: Analyses Of Sources Of Pollutionmentioning

confidence: 99%

Air Pollution

Altshuller¹

1965

Anal. Chem.

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“…As a result of the wall effect, which causes excessive tailing, attempts to use open tubular columns for separation of free phenols have been often unsuccessful. In the few papers dealing with the separation of phenols on open tubular columns (75, [18][19][20], the use of surface active agents is often recommended for suppression of tailing effects. Symmetrical peaks are very important to obtain when precise quantitative analyses are required.…”

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confidence: 99%