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Graphite Furnace Atomic Absorption Spectrometry Determination and On-line Preconcentration of Palladium

✍ Scribed by Á. Lévai; A. Lásztity; K. Zih-Perényi; Zs. Horváth

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
100 KB
Volume
58
Category
Article
ISSN
0026-265X

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✦ Synopsis

Palladium was determined in pharmaceuticals by direct graphite furnace atomic absorption spectrometry (GFAAS) method. The detection limit was 0.1 mg/g in 5% solution; the recovery of 0.5-2.0 mg/g Pd spike was close to 100%. The flow injection GFAAS method was worked out using oxime and iminodiacetic acid ethyl cellulose (IDAEC) microcolumns for preconcentration of Pd in aqueous and 50% methanol solutions. The optimal pH range for preconcentration was 2-5. At 20-fold enrichment the detection limits for Pd were 0.39 mg/liter for oxime cellulose and 0.42 mg/liter for IDAEC.

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