Extraction, spectrophotometric and atomic absorption spectrophotometric determination of molybdenum with caffeic acid and application in high purity grade steel and environmental samples

Journal Article · Thu Jun 01 00:00:00 EDT 1989 · Analytical Letters; (USA)

DOI:https://doi.org/10.1080/00032718908051214· OSTI ID:6990332

Shah, N; Desai, M N ^[1]; Menon, S K; Agrawal, Y K ^[2]

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1. Gujaret Univ., Ahmedabad (India)
2. Univ. of Baroda, Kalabhavan (India)

A new selective and sensitive method for extraction of yellow Mo(VI)-caffeic acid complex with a liquid ion exchanger, Aliquat 336 from 4.0 pH, and spectrophotometric determination of molybdenum in trace amounts is described. The molar absorptivity of the complex is 1.1 {times} 10{sup 5} 1 mol{sup {minus}1} cm{sup {minus}1} at 340 nm and the color system obeys Beers law in the range 0.04-0.99 ppm of Mo(VI). The molybdenum is also determined with AAS and the method is applied for its determination in steel and environmental samples.

• OSTI ID: 6990332
• Journal Information: Analytical Letters; (USA), Journal Name: Analytical Letters; (USA) Vol. 22:7; ISSN ANALB; ISSN 0003-2719
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360000* -- Materials
360100 -- Metals & Alloys
360102 -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
DATA
DATA ANALYSIS
ELEMENTS
ENVIRONMENTAL MATERIALS
EXPERIMENTAL DATA
INFORMATION
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
MOLYBDENUM
NUMERICAL DATA
STEELS
TRACE AMOUNTS
TRANSITION ELEMENTS