Gas chromatographic separation of ethanolamines and ethylene glycols without preliminary derivatization

Boneva, S.; Dimov, N.

doi:10.1007/bf02262893

Cited by 8 publications

(4 citation statements)

References 4 publications

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“…A somewhat better reproducibility was achieved when 15% Carbowax 20M on 80-100 mesh Porapak Q was used, as suggested by Boneva and Dimov (1979). We had, however, some problems with the detection of small amounts of TEA since its peak was quite broad.…”

Section: Methodsmentioning

confidence: 82%

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Comparison of some solid catalysts for the production of ethanolamines from ammonia and ethylene oxide in the liquid phase

Vamling¹,

Cider²

1986

Ind. Eng. Chem. Prod. Res. Dev.

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Section: Methodsmentioning

confidence: 82%

“…The paper of Boneva and Dimov (1981) drew our attention to the possibility of using capillary columns. We therefore tested three fused-silica columns with bonded phases having different polarities.…”

Section: Methodsmentioning

confidence: 99%

Comparison of some solid catalysts for the production of ethanolamines from ammonia and ethylene oxide in the liquid phase

Vamling¹,

Cider²

1986

Ind. Eng. Chem. Prod. Res. Dev.

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“…If reaction conditions are not strictly maintained, it may cause inaccurate estimations of the analyte due to incomplete derivatization. The proposed analytical instruments are numerous for both separation including GC, LC, ion chromatography, and capillary electrophoresis and for detection including flame ionization detector (FID) or nitrogen phosphorous selective detector (NPD), MS, fluorescence or UV detection [18,20,22,[28][29][30][31][32][33][34][35]. A recently proposed approach uses impregnated glass fiber filters followed by the derivatization and LC-MS or LC-UV detection [20].…”

mentioning

confidence: 99%

A simple gas chromatography method for the analysis of monoethanolamine in air

Gerster

Hopf²,

Huynh³

et al. 2012

J of Separation Science

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A simple method determining airborne monoethanolamine has been developed. Monoethanolamine determination has traditionally been difficult due to analytical separation problems. Even in recent sophisticated methods, this difficulty remains as the major issue often resulting in time-consuming sample preparations. Impregnated glass fiber filters were used for sampling. Desorption of monoethanolamine was followed by capillary GC analysis and nitrogen phosphorous selective detection. Separation was achieved using a specific column for monoethanolamines (35% diphenyl and 65% dimethyl polysiloxane). The internal standard was quinoline. Derivatization steps were not needed. The calibration range was 0.5-80 μg/mL with a good correlation (R(2) = 0.996). Averaged overall precisions and accuracies were 4.8% and -7.8% for intraday (n = 30), and 10.5% and -5.9% for interday (n = 72). Mean recovery from spiked filters was 92.8% for the intraday variation, and 94.1% for the interday variation. Monoethanolamine on stored spiked filters was stable for at least 4 weeks at 5°C. This newly developed method was used among professional cleaners and air concentrations (n = 4) were 0.42 and 0.17 mg/m(3) for personal and 0.23 and 0.43 mg/m(3) for stationary measurements. The monoethanolamine air concentration method described here was simple, sensitive, and convenient both in terms of sampling and analytical analysis.

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“…HPLC with refractive index detection can be used to measure DEG reliably only down to 20-50 mg/L (Bonn, 1985; Day et al, 1985), much higher than the Canadian limit. Recent methods (Kaplan et al, 1982;Holzer, 1985;Bandion et al, 1985; Boneva and Dimov, 1981) utilizing capillary gas chromatography provide enough sensitivity, but the direct injection of wine results in a variety of chromatographic problems such as rapid degradation of column performance, contamination of the injector liner, adsorption, and poor reproducibility. In addition, the resulting chromatograms from direct analysis on polar columns are usually very complex and thus make the identification and quantitation difficult.…”

mentioning

confidence: 99%

Determination of diethylene glycol in wines by high-resolution gas chromatography/mass spectrometry

Lau¹,

Dorcas²

1987

J. Agric. Food Chem.

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Gas chromatographic separation of ethanolamines and ethylene glycols without preliminary derivatization

Cited by 8 publications

References 4 publications

Comparison of some solid catalysts for the production of ethanolamines from ammonia and ethylene oxide in the liquid phase

Comparison of some solid catalysts for the production of ethanolamines from ammonia and ethylene oxide in the liquid phase

A simple gas chromatography method for the analysis of monoethanolamine in air

Determination of diethylene glycol in wines by high-resolution gas chromatography/mass spectrometry

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