Application of capillary burners in flame spectrometry

Aldous, Kenneth M.; Browner, Richard F.; Dagnall, R.M.; West, T.S.

doi:10.1021/ac60290a027

Cited by 42 publications

(19 citation statements)

References 2 publications

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“…Solving eq 1 for r0 and substituting into eq 10 yields M = ADChR-W/HK-V2 + (trDY1!2) (11) The area of the droplet is defined in terms of radius. By applying eq 1 to this relation, expressing area as a function of time, and grouping like terms, eq 11 becomes = 2trKDCbR-Hzl2(K-V2 + ( ))'1/2) (12) where the moles consumed are proportional to the three-halves power of t. The grams consumed are simply obtained by multiplying M by the atomic weight of Ca.…”

Section: Resultsmentioning

confidence: 99%

“…The electronics to drive the droplet generator have been modified by Seymour and Boss (11) to reduce fluctuations in introduction rate and to simplify the operation. A N20/C2H2 capillary burner was used to provide a stiff laminar flame (12). Emission signals were monitored with a Heath monochromator (EU-700) and a Heath photomultiplier module (EU-701-30).…”

Section: Methodsmentioning

confidence: 99%

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Phosphine depression of calcium in flame atomic emission spectrometry with a uniform droplet generator

Long¹,

Boss²

1982

Anal. Chem.

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The PHa depression of Ca emission signals Is the result of a condensed phase vaporization Interference. The combustion products of PH3, POx, diffuse Into the desolvatlng droplet to form a refractory Ca-POx compound. Through the study of flame emission profiles of vaporized, uniformly sized droplets, the formation of the refractory compound Is not observed to slow the free atom supply rate. The use of La3+ In the analyte matrix alleviates the depression. Aspirating H3P04 acid into the flame and Injecting the analyte Into a PH3 free flame results In a depression of the Ca emission similar to that of PH3. This similarity suggests the PH3 and P043" depressions of Ca emission signals In alr/C2H2 flames are the same.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Phosphine depression of calcium in flame atomic emission spectrometry with a uniform droplet generator

Long¹,

Boss²

1982

Anal. Chem.

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“…PH3 in C2H2 is determined flame photometrically by measuring the broad band emission of a PH3 combustion product at 553.0 nm. A capillary burner similar to one described by West et al (8) and a 3 cm by 91 cm Vycor tube (Fisher 11-369 K) with a 5 cm diameter flare at the tube's bottom are used to provide a stiff, shielded flame. Flame emission was monitored with a Heath monochromator (EU-700) and a Heath photomultiplier module (EU-701-30).…”

Section: Methodsmentioning

confidence: 99%

Removal of phosphine from acetylene

Long¹,

Boss²

1981

Anal. Chem.

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Acetylene is the most commonly used fuel in flame atomic spectrometry. While acetylene flames provide a safe and inexpensive atomization medium, variations in the amount of contaminates normally found in C2H2 prevent the flame background from being reproducible and can impede the analysis of certain elements. Phosphine, PH3, is a gas and the major contaminant in C2H2 (1). The level of PH3 varies according to the grade of the C2H2. Commercial C2H2 typically has a PH3 contamination level of 200-600 µ L"1, while pu-

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“…In comparison to conventional burners, the capillary burner has shown the same analytical performance but with improved stability (7). It was found for a number of elements, that the emission signal from a capillary burner was greater than that from a conventional burner of the same dimensions and equivalent gas flow.…”

Section: Burnersmentioning

confidence: 98%

“…The nitrous oxide-acetylene flame has a lower burning velocity and is better suited for use with a premixed burner. It is now widely used in atomic absorption and atomic emission spectrometry (7).…”

Section: Flamesmentioning

confidence: 99%

LXXXVI. Atomic spectroscopy atomization systems [part one]

Dresser¹,

Mooney²,

Heithmar³

et al. 1975

J. Chem. Educ.

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So. Orange, N. J. 07079 Tfose articles are intended to serve the readers of this Journal by calling attention to new developments in the-theory, design, or availability of chemical laboratory instrumentation, or by presenting useful insights and explanations of topics that are of practical importance to those who use, or teach the use of, modern instrumentation and instrumental techniques. The editor invites correspondence from prospective contributors.

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Application of capillary burners in flame spectrometry

Cited by 42 publications

References 2 publications

Phosphine depression of calcium in flame atomic emission spectrometry with a uniform droplet generator

Phosphine depression of calcium in flame atomic emission spectrometry with a uniform droplet generator

Removal of phosphine from acetylene

LXXXVI. Atomic spectroscopy atomization systems [part one]

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