DETERMINATION OF BERYLLIUM IN URINE BY ION EXCHANGE SEPARATION AND FLUORIMETRIC MEASUREMENT

Technical Report · Fri Feb 01 04:00:00 EST 1963

OSTI ID:4699850

Sutton, D C

A method is reported for the determination of Be in 1liter urine samples. Using Al as carrier, Be is collected as the phosphate. (Ethylenedinitrilo)tetrasodiumacetate (EDTA) is used as masking agent for interfering cations. Al and Be are complexed as fluorides with NaF and are exchanged on the hydroxide form of Dowex 1 x-4 anion resin. Ca, Mg, Fe, and phosphate are not exchanged. The fluoride complexes are removed from the resin by eluting with 6N HCl. The eluate is wet ashed with HNC/sub 3/ and H/sub 2/SO/ sub 4/ and Be and Al are collected as hydroxides. Chemical recovery is determined by gamma counting Be/sup 7/ tracer. The normal Be is measured fluorimetrically with morin as the reagent. The overall chemical recovery observed with 8 experimental 1-liter samples was 93.5 surface proces 4.5%. The lower limit of detection for the fluorimetric measurement is 0.005 g per tube, which is equivalent in the overall method to 0.05 g/l of urine. (auth)

• Research Organization: New York Operations Office. Health and Safety Lab., AEC
• NSA Number: NSA-17-025114
• OSTI ID: 4699850
• Report Number(s): HASL-134
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALUMINUM FLUORIDES
ALUMINUM HYDROXIDES
ALUMINUM PHOSPHATES
BERYLLIUM
BERYLLIUM 7
BERYLLIUM FLUORIDES
BERYLLIUM HYDROXIDES
CARRIERS
CHEMISTRY
CLEANING
DOWEX
EDTA
GAMMA DETECTION
HYDROCHLORIC ACID
INTERFERING ELEMENTS
ION EXCHANGE
ION EXCHANGE MATERIALS
LEACHING
MASKING AGENTS
MORIN
NITRIC ACID
PHOTOMETRY
QUANTITATIVE ANALYSIS
RESINS
SODIUM FLUORIDES
SOLUTIONS
SULFURIC ACID
TRACER TECHNIQUES
URINE