Spectrophotometric Determination of Benzocaine by Azo-Dye Formation Reaction with N - (1-naphthyl)ethylenediamine as Coupling Agent
A simple spectrophotometric method for the determination of benzocaine in aqueous solution is developed. The method based on the coupling of diazotized benzocaine with N-(1-naphthyl)ethylenediamine(N-NED) in acidic<br />rnedium. The purplish - violet azo dye formed is water soluble, stable, an...
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College of Education for Pure Sciences,
2005-06-01T00:00:00Z.
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| LEADER | 00000 am a22000003u 4500 | ||
|---|---|---|---|
| 001 | doaj_032b516b14eb4bd99e09ce2febfd6c20 | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a W. Bashir |e author |
| 700 | 1 | 0 | |a N. Othman |e author |
| 245 | 0 | 0 | |a Spectrophotometric Determination of Benzocaine by Azo-Dye Formation Reaction with N - (1-naphthyl)ethylenediamine as Coupling Agent |
| 260 | |b College of Education for Pure Sciences, |c 2005-06-01T00:00:00Z. | ||
| 500 | |a 1812-125X | ||
| 500 | |a 2664-2530 | ||
| 500 | |a 10.33899/edusj.2005.162863 | ||
| 520 | |a A simple spectrophotometric method for the determination of benzocaine in aqueous solution is developed. The method based on the coupling of diazotized benzocaine with N-(1-naphthyl)ethylenediamine(N-NED) in acidic<br />rnedium. The purplish - violet azo dye formed is water soluble, stable, and shows tnaximum absorption at 547.5 nm. Beer's law is obeyed over the range 10 - 100 ptg I 25 ml, i.e, 0.4 - 4 ppm with a molar absorptivity of 5.56 x 104l.mol-r.cm-' and Sandell's sensitivity index of 0.0029 pg.cm-2, arelative error of - 0.660 to * 0.002% and a relative standard deviations of*0.110to+ 0.550% depending on the concentration. The method has been applied to<br />determine benzocaine in two synthetic pharmaceutical preparations. | ||
| 546 | |a AR | ||
| 546 | |a EN | ||
| 690 | |a benzocaine | ||
| 690 | |a ethylenediamine | ||
| 690 | |a coupling agent | ||
| 690 | |a Education | ||
| 690 | |a L | ||
| 690 | |a Science (General) | ||
| 690 | |a Q1-390 | ||
| 655 | 7 | |a article |2 local | |
| 786 | 0 | |n مجلة التربية والعلم, Vol 17, Iss 3, Pp 48-60 (2005) | |
| 787 | 0 | |n https://edusj.mosuljournals.com/article_162863_7a97aa093578f23a09365ba441dd5181.pdf | |
| 787 | 0 | |n https://doaj.org/toc/1812-125X | |
| 787 | 0 | |n https://doaj.org/toc/2664-2530 | |
| 856 | 4 | 1 | |u https://doaj.org/article/032b516b14eb4bd99e09ce2febfd6c20 |z Connect to this object online. |