Spectrophotometric procedure using rhodamine B for determination of submicrogram quantities of antimony in rocks☆

Schnepfe, Marian M.

doi:10.1016/0039-9140(73)80264-4

Cited by 14 publications

(2 citation statements)

References 15 publications

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“…The fluorimetric method was also used by Hiraki et al (205) for determination of Se (IV) and Se (VI) in sea water (with DAN), by Beal (41) for fish tissues mineralized in HNO3-HC04-H2SO4, and by Schnepfe (206) for rocks (< 0.1 pug Se/g). Brown and Watkinson (207) proposed an automatic method for estimation (208) Sediments Airborne particulates (14, 222) Coal flyash (213) of nanogram amounts of selenium and employed it for a direct assay of blood.…”

Section: Other Methodsmentioning

confidence: 99%

Determination of selenium in the environment and in biological material.

M.¹

1981

Environ Health Perspect

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Section: Other Methodsmentioning

confidence: 99%

Determination of selenium in the environment and in biological material.

M.¹

1981

Environ Health Perspect

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“…Antimony in the subnanogram/gram concentration has in the past either been routinely done by a colorimetric method (Schnepfe, 1973) or more recently, by graphite furnace-atomic absorption spectrophotometry (Aruscavage, 1977). The use of hydride generation is not new in the determination of antimony (for example, Smith, 1975 andThomerson, 1974).…”

Section: Introductionmentioning

confidence: 99%

The determination of trace-level antimony in geological materials by semi-automated hydride generation-atomic absorption spectroscopy

Crock¹,

Lichte²

1981

Open-File Report

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A semi-automated method for the determination of antimony in geological materials involves the following steps. After a manual digestion of the sample with a mixture of concentrated sulfuric, nitric, and perchloric acids, the sample is brought to volume with 10% hydrochloric acid. The sample is then mixed in a continuous flow-automated sequence with reducing agents, further acidified with hydrochloric acid and reacted with a solution of sodium borohydide to form the gaseous hydride of antimony. The resulting gas mixture of hydrogen and hydrides is decomposed in a heated quartz tube in the optical path of an atomic absorption spectrophotometer. The amount of antimony present is proportional to the absorbance, measured by peak height.Interferences that exist are minimal and most geological materials can be analyzed directly. The relative standard deviation (RSD) of the digestion and the instrumentation is <2%. The blank-limited detection limit is 0.2 yg/L (microgram/Liter) and the sensitivity is 0.44 vg/L antimony.

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Sb — Antimon

Koch¹,

Koch-Dedic²

1974

Handbuch Der Spurenanalyse

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Spectrophotometric procedure using rhodamine B for determination of submicrogram quantities of antimony in rocks☆

Cited by 14 publications

References 15 publications

Determination of selenium in the environment and in biological material.

Determination of selenium in the environment and in biological material.

The determination of trace-level antimony in geological materials by semi-automated hydride generation-atomic absorption spectroscopy

Sb — Antimon

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