Synthesis of 2-[2-(5-methylbenzothiazolyl)azo]-5-dimethylaminobenzoic acid and its application to the spectrophotometric determination of nickel
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Fan, X; Zhang, G; Zhu, C
Published in: Analyst
January 1, 1998
A new thiazolylazo reagent, 2-[2-(5-methylbenzothiazolyl)azo] -5-dimethylaminobenzoic acid (5-Me-BTAMB) was synthesized. Its chromogenic reaction with microamounts of nickel was studied in detail, and the stability constants of the complexes of Ni2+, Co2+, Fe2+, Cu2+ and Pd2+ were determined. 5-Me-BTAMB reacts with nickel(II) in the presence of sodium dodecyl sulfate to form a stable blue-violet 2:1. complex with an absorption maximum at 640 nm. The molar absorptivity of the complex is 1.32 x 105 l mol-1 cm-1. Beer's law is obeyed in the range 0-10 μg of nickel(II) per 25 ml. The proposed method was applied to the direct determination of microamounts of nickel in aluminium alloys with satisfactory results.
Duke Scholars
Published In
Analyst
DOI
ISSN
0003-2654
Publication Date
January 1, 1998
Volume
123
Issue
1
Start / End Page
109 / 112
Related Subject Headings
- Analytical Chemistry
- 3401 Analytical chemistry
- 0399 Other Chemical Sciences
- 0301 Analytical Chemistry
Citation
APA
Chicago
ICMJE
MLA
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Fan, X., Zhang, G., & Zhu, C. (1998). Synthesis of 2-[2-(5-methylbenzothiazolyl)azo]-5-dimethylaminobenzoic acid and its application to the spectrophotometric determination of nickel. In Analyst (Vol. 123, pp. 109–112). https://doi.org/10.1039/a705268e
Fan, X., G. Zhang, and C. Zhu. “Synthesis of 2-[2-(5-methylbenzothiazolyl)azo]-5-dimethylaminobenzoic acid and its application to the spectrophotometric determination of nickel.” In Analyst, 123:109–12, 1998. https://doi.org/10.1039/a705268e.
Fan X, Zhang G, Zhu C. Synthesis of 2-[2-(5-methylbenzothiazolyl)azo]-5-dimethylaminobenzoic acid and its application to the spectrophotometric determination of nickel. In: Analyst. 1998. p. 109–12.
Fan, X., et al. “Synthesis of 2-[2-(5-methylbenzothiazolyl)azo]-5-dimethylaminobenzoic acid and its application to the spectrophotometric determination of nickel.” Analyst, vol. 123, no. 1, 1998, pp. 109–12. Scopus, doi:10.1039/a705268e.
Fan X, Zhang G, Zhu C. Synthesis of 2-[2-(5-methylbenzothiazolyl)azo]-5-dimethylaminobenzoic acid and its application to the spectrophotometric determination of nickel. Analyst. 1998. p. 109–112.
Published In
Analyst
DOI
ISSN
0003-2654
Publication Date
January 1, 1998
Volume
123
Issue
1
Start / End Page
109 / 112
Related Subject Headings
- Analytical Chemistry
- 3401 Analytical chemistry
- 0399 Other Chemical Sciences
- 0301 Analytical Chemistry