University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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Alloy

Classification: Alloy -> permalloy

Citations 2

"Determination Of Nickel In Nickel/iron Alloy Thin Films By Flow Injection Analysis"
Bunseki Kagaku 1987 Volume 36, Issue 4 Pages 233-237
Shirato, F.;Okajima, Y.;Kuroishi, T.;Takata, Y.

Abstract: A 0.25 mM 4-(2-pyridylazo)resorcinol solution in sodium borate buffer (pH 9.4) containing 0.22 mM Na2H2P2O7 (to mask Fe(III)) and solution of the sample were mixed in a carrier stream of water (1 mL min-1) and fed through a reaction coil (10 m x 0.5 mm) at 65°C and a back-pressure coil (5 m x 0.25 mm) at 25°C before the absorbance was measured at 520 nm in an 18 µL flowcell. The system enabled 30 analyzes per h with a coefficient of variation at 5 ppm of Ni of 0.09%. The method was applied to analysis of Permalloy thin films for which only 0.3 mg of sample was required.
Nickel Spectrophotometry Heated reaction Interferences

"Determination Of Iron In Nickel-iron Alloy Thin Films By Flow Injection Analysis"
Bunseki Kagaku 1987 Volume 36, Issue 9 Pages 515-519
Shirato, F.;Okajima, Y.;Kuroishi, T.;Takata, Y.

Abstract: In the flow injection system described, sample solution was injected into the carrier stream (H2O; 1 ml min-1) and allowed to react with reagent solution containing 0.5 mM 4,7-diphenyl-1,10-phenanthrolinedisulfonic acid(I) and 10 mM ascorbic acid in 0.3 M Na acetate buffer (pH 4.6) in a PTFE reaction coil (10 m x 0.5 mm) at 95°C. The absorbance of the Fe - I complex formed was measured at 535 nm in a 18 µL flow cell. The calibration graph was rectilinear from 0.5 to 1.5 ppm of Fe. The coefficient of variation (n = 14) for 1 ppm of Fe was 0.08%. The sampling rate was 20 h-1. The method was applied in the determination of Fe in nickel - iron alloy.
Iron Spectrophotometry Heated reaction