DETERMINATION OF IRON, CHROMIUM, AND NICKEL BY FLUORESCENT X-RAY ANALYSIS. AQUEOUS SOLUTION METHOD

Journal Article · Mon Jun 01 04:00:00 EDT 1959 · Analytical Chemistry (U.S.) Formerly Ind. Eng. Chem., Anal. Ed.

DOI:https://doi.org/10.1021/ac60150a037· OSTI ID:4246572

Houk, W W; Silverman, L

The iron, chromium, and nickel contents in many types of stainless steels and nickel-chromium alloys were determined by fluorescent x-ray analysis. The samples were dissolved in aqua regia and hydrofluoric acids, fumed with perchloric acid, and diluted to volume with water. The fluorescence data were obtained for specific K alpha lines and background. The ratio of the intensity- of the element plus background to the intensity of the background was compared the standard plot to obtain the percentage of element present. These values were within 3% of the recommended values of the National Bureau of Standards samples when a CRiger counter was uscd, and within 1.5% when a scintillation counter was used to measure the intensities of the fluorescent radiation. The addition of the pulse height discrimination unit to the scintillation counter reduced the lower limit of detection for iron chronrium, and nickel to 5 to 10 per ml. of sample, The standard curves plotted for the stainless steel alloys were equally applicable to chromium--nickel alloys. (auth)

• Research Organization: Atomics International Div., North American Aviation, Inc., Canoga Park, Calif.
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-014292
• OSTI ID: 4246572
• 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

CHEMISTRY
CHROMIUM
CHROMIUM ALLOYS
DIAGRAMS
ERRORS
FLUORESCENCE
FREQUENCY
GEIGER-MUELLER COUNTERS
HYDROCHLORIC ACID
HYDROFLUORIC ACID
IRON
MEASURED VALUES
MIXING
NICKEL
NICKEL ALLOYS
NITRIC ACID
PULSE ANALYZERS
QUALITATIVE ANALYSIS
RADIATION DETECTORS
SCINTILLATION COUNTERS
SIGNALS
SOLUTIONS
STAINLESS STEELS
STANDARDS
TRACE AMOUNTS
WATER
X RADIATION