Flame Photometric Determination of Lead and Manganese in Gasoline

Smith, G. W.; Palmby, A. K.

doi:10.1021/ac60155a030

Cited by 19 publications

(4 citation statements)

References 7 publications

(5 reference statements)

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“…Several other methods have been proposed (1-3), including gas chromatography (4)(5)(6)(7), whereby sucrose has been separated on packed columns as the trimethylsilyl derivative. We have shown that open tubular columns are suitable for the analysis of sucrose in sugar factory products (8) and in a recent note (9) reported that a high precision may be obtained for this analysis. The relative standard deviation for nine replicate chromatographic determinations of the same derivatized sample was under 0.1%.…”

Section: Acknowledgmentmentioning

confidence: 82%

“…Manganese in the range 0.003-1.0% was found. Generally flame photometric methods are limited by burner problems and complex sample handling (8), although novel burner design has improved matters (9), 0003-2700/78/0350-0852S01.00/0 and atomic absorption procedures for total manganese are preferred. Lukasiewicz and Buell (10) have noted the behavior of various manganese compounds including MMT in nitrous oxide-hydrogen flames for direct determination in gasoline, and observed different responses for various compounds.…”

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confidence: 99%

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Determination of methylcyclopentadienylmanganesetricarbonyl in gasoline by gas chromatography with interfaced direct current argon plasma emission detection

Uden¹,

Barnes²,

DiSanzo³

1978

Anal. Chem.

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A method is described for the determination of methylcyclopentadienylmanganesetricarbonyl (MMT) in gasoline utilizing gas chromatographic separation with interfaced specific manganese detection by means of dc argon plasma emission spectroscopy. The procedure is rapid, free of interferences, specific, and requires little sample preparation. The use of cyclopentadienylmanganesetrlcarbonyl (cymantrene) as an internal reference yields a precision of ±0.8-3.4% relative standard deviation. The limit of detection Is approximately 3 ng of manganese metal as the complex.Increasing attention has been given in recent years to the use of manganese additives for improving combustion processes of various fuel oils. Organometallic compounds such as methylcyclopentadienylmanganesetricarbonyl (CH3C5-H4Mn(CO)3) (MMT), the additive AK-33X, have found application in aircraft fuels and in the formulation of heating oils to reduce flue-gas smoke. In particular MMT and similar compounds have been used in conjunction with alkyllead compounds to provide synergistic octane number improvement (1). Additives with typical manganese to lead ratios of 0.1-0.3:1 were patented (2). Other manganese compounds, e.g., amine complexes, were also found valuable in reducing noxious particle and gas emission in burning fuels (3). However, the possible danger of increased atmospheric manganese concentrations arises from these sources and levels of >5 pg Mn/L have been reported to lead to chronic manganese poisoning and/or manganese pneumonia (4).

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Section: Acknowledgmentmentioning

confidence: 82%

mentioning

confidence: 99%

Determination of methylcyclopentadienylmanganesetricarbonyl in gasoline by gas chromatography with interfaced direct current argon plasma emission detection

Uden¹,

Barnes²,

DiSanzo³

1978

Anal. Chem.

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“…Com- (8) Hiickel, W., "Structural Chemistry of Inorganic Compounds," p. 592, Elsevier, New York, 1951. (9) Jahoda, F. C., Phys. Rev.…”

Section: Recentlymentioning

confidence: 99%

Determination of Manganese in Gasoline by X-Ray Emission Spectrography

Jones¹

1959

Anal. Chem.

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“…The decomposition of the organomanganese compound in gasolines is effected by irradiation with ultraviolet light for about 25 minutes during the extraction procedure. During the development of the procedure, the extracted gasoline residues were analyzed for manganese and lead, using a flame photometer with an oxyhydrogen flame (12). For iso-octane and the more volatile aviation fuel stocks, no traces of lead or manganese could be detected in the gasoline residues.…”

mentioning

confidence: 99%