FLUORMETRIC DETERMINATION OF SUBMICROGRAM QUANTITIES OF BERYLLIUM

Journal Article · Tue Mar 31 23:00:00 EST 1959 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

OSTI ID:4275037

Sill, C W; Willis, C P

The increasing use of beryllium in the atomic energy program and the highly toxic nature of its compounds require a method of high sensitivity and reliability for its detection and determination. Although morin is the most sensitive reagent known for the determination of beryllium, available procedures are not particularly reliable at extremely low levels. A fluorometric method using morin has been developed that has a ' detection limit of O.OOO4 gamma and a precision to 0.8% on 0.2 gamma at the 95% confidence level. Reliability and precision are improved grertly through use of a buffer system, an internal acid- base indicator, a permanent glass standard of fluorescence, and complexing agents. Detailed methods of separation of beryllium and application to air-dust and smear samples, urine, bone, ores, and steel are given. They were checked at each step using beryllium-7 tracer. Errors produced by certain metals and by variations in the procedure are described. (auth)

• Research Organization: U.S. Atomic Energy Commission, Idaho Falls, Idaho
• NSA Number: NSA-13-011631
• OSTI ID: 4275037
• Journal Information: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed., Journal Name: Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed. Vol. Vol: 31; ISSN ANCHA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
AIR
BERYLLIUM
BERYLLIUM 7
BERYLLIUM COMPOUNDS
BONES
CHEMICALS
CHEMISTRY
COMPLEXES
CONTAMINATION
DUSTS
ERRORS
FLUORESCENCE
GASES
GLASS
INTERFERING ELEMENTS
MEASURED VALUES
METALS
MORIN
ORES
QUALITATIVE ANALYSIS
QUANTITATIVE ANALYSIS
RADIOCHEMISTRY
SAMPLING
SENSITIVITY
SEPARATION PROCESSES
STANDARDS
STEELS
TESTING
TITRATION
TOXICITY
TRACE AMOUNTS
TRACER TECHNIQUES
URINE
USES