1981
DOI: 10.1021/ac00229a015
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O-alkyloxime derivatives for gas chromatographic and gas chromatographic-mass spectrometric determination of aldehydes

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Cited by 27 publications
(6 citation statements)
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“…A mixture of 20 mg standard DXP (carbonyl compound), 20 mg of hydroxylamine hydrochloride as a reactant to form oxime, and 20 mg sodium acetate as pH modifier 20 were liquefied into 25 mL ethyl alcohol (v/v% 75) and refluxed for 1-hour. The alcohol then evaporated at 70°C, while the residual was extracted out of two phases of 10 mL of chloroform and 10 mL of water.…”
Section: Equationmentioning
confidence: 99%
“…A mixture of 20 mg standard DXP (carbonyl compound), 20 mg of hydroxylamine hydrochloride as a reactant to form oxime, and 20 mg sodium acetate as pH modifier 20 were liquefied into 25 mL ethyl alcohol (v/v% 75) and refluxed for 1-hour. The alcohol then evaporated at 70°C, while the residual was extracted out of two phases of 10 mL of chloroform and 10 mL of water.…”
Section: Equationmentioning
confidence: 99%
“…Several gas chromatographic (GC) methods have been described for the determination of aldehydes in water or air. Classically 2,4-dinitrophenylhydrazine (DNPH) has been used for derivatization despite the low volatility of these derivatives. , Another GC method involves oxime derivatization and detection of the highly volatile derivatives by a nitrogen-selective detector. In one paper, the different forms of 2,2-dimethyl-3-hydroxypropionaldehyde (DHPAL) were determined by GC as oxime derivatives. After trimethylsilylation of the oxime, the total amount of DHPAL was determined …”
mentioning
confidence: 99%
“…Quantitative derivatization and collection of aldehydes or ketones are accomplished by using, for example, C 6 H 5 CH 2 ONH 2 .HCl in a methanol solution with a sodium acetate buffer. 152 Derivatization of the carbonyl function with O-pentafluorobenzylhydroxylam ine proceeds quantitatively at 20°C for 1 h at pH 3. 153,154 The same reagent has been used, for example, for in-situ derivatization followed by thermal desorption GC/MS analysis of stale-flavor carbonyl compounds such as E-2-octenal and -nonenal, E,Z-2,6-nonadienal and E,E-2,4decadienal in beer.…”
Section: Derivatization Of Aldehydes and Ketonesmentioning
confidence: 99%