Kontinuierliche massenspektrometrische Analyse von gaschromatographisch getrennten Fraktionen

Brunnée, Curt; Jenckel, L.; Kronenberger, Katrin

doi:10.1007/bf00489686

Cited by 33 publications

(5 citation statements)

References 3 publications

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“…1.25 X 10"10 1.5 X 10-« 3.6 1.18 X 10"10 1.0 x io-« 2.9 1.0 X io-10 8.0 X 10"' 2.5 1.0 x io-10 7.0 X 10~7 2.3 9.4 X 10"11 5.0 X to "7 1.7 8.3 X 10"11 3.5 X 10"7 1.1 7.0 X [10][11] Calculated0 sensitivity, g/sec 3.0 X 10"12 2.5 X [10][11][12] 2.3 X 10-12 2.0 X 10-12 2.0 X 10"12 1.8 X 10-12 1.6 X 10-12 1.4 X 10"12 M.S. resolution, 600; source temp, 310 °C; line temp, 275 °C; ionization voltage, 70 eV; filament emission, 300 µ ; 26-ft X 0.030-in.…”

Section: Resultsmentioning

confidence: 99%

Total-effluent gas chromatography-mass spectrometry

Henderson¹,

Steel²

1972

Anal. Chem.

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Calif. 94720A GC-MS system which allows introduction of a total GC effluent of up to 20 ml/min directly into the ion source of a mass spectrometer is described. The effect of flow rate on ion source and analyzer pressures, overall sensitivity, and resolving power of the system are evaluated. It has been shown that 10_1°-10_11 gram/sec sample flow rates are obtained for cholesterol trimethylsilyl ether at helium flow rates of 1-7 ml/min. Within that flow rate range, only a 12% reduction in mass spectrometer resolving power was noted. The system has been shown to be suitable for a wide range of molecules from low molecular weight gases to high molecular weight steroid and carbohydrate derivatives.Since the original work of James and Martin ( 7), the application of gas-liquid chromatography to the separation and identification of components of complex mixtures of organic materials has increased enormously. A wide variety

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Section: Resultsmentioning

confidence: 99%

Total-effluent gas chromatography-mass spectrometry

Henderson¹,

Steel²

1972

Anal. Chem.

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“…(3) and Millard (£>)• West and Carlton (7) have shown that lead in hydrochloric acid solution can be separated from a large number of metals by a preliminary extraction of metal thiocyanates with methyl isopropyl ketone followed by the extraction of lead as the iodide with the same solvent. McCord and Zemp (5) separate lead from partially ashed urine by extraction of lead iodide with methyl isopropyl ketone and determine the lead spectrophotometrically as the dithizonate. Frank (£), in a modification of the Mc-Cord and Zemp procedure, extracts lead iodide with a 6:3 mixture of methyl isobutyl ketone and methyl ethyl ketone.…”

Section: Methodsmentioning

confidence: 99%

Direct Recording of High Resolution Mass Spectra of Gas Chromatographic Effluents.

Watson¹,

Biemann²

1965

Anal. Chem.

154

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“…(7) (GLC) with a mass spectrometer (MS) for the characterization of the emerging fractions is an intriguing idea of considerable potential, and this principle was demonstrated as early as 1957 (9). It has since been employed in various modes, ranging from the simple monitoring of a single mass (6,8) to the fast scanning of a preselected part (9) of the spectrum, or all of it, using oscillograph recorders (3,4,10,11) or oscilloscope photography (5, 7). A less direct approach utilizes a manifold located between GLC and MS for intermediate trapping of the fractions (5, 12).…”

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confidence: 99%