Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidade Estadual Paulista Júlio de Mesquita Filho
2006
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=42931406 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866815491298820096 |
|---|---|
| author | P. Nagaraja |
| author_facet | P. Nagaraja |
| contents | Sensitive spectrophotometric assessment of carbofuran using dapsone as a new chromogenic reagent in formulations and environmental samples P. Nagaraja B. L. Bhaskara Química dapsone carbofuran assessment formulations environmental A simple, sensitive and selective spectrophotometric method for the assessment of carbofuranin various formulations and in environmental water samples is described. The method is based on thecoupling of hydrolyzed carbofuran with diazotized dapsone in alkaline medium at 0 4° C which givesorange red colored product having the absorption maximum at 480 nm. The product is stable for 48 h.Beers law is obeyed in the concentration range of 0.1 4.0 µg ml-1. The molar absorptivity and SandellsSensitivity are 5.0 x 104 L mol-1 cm-1 and 4.4 ng cm-2 respectively. The method is highly reproducibleand is confirmed by RSD values (1.144 %). From the recovery studies it is found that this method isaccurate and it can be successfully employed for the determination of carbofuran. 2006 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42931406 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.4 Vol.31 |
| format | Artículo científico |
| id | redalyc_42931406 |
| language | en |
| publishDate | 2006 |
| publisher | Universidade Estadual Paulista Júlio de Mesquita Filho |
| spellingShingle | Sensitive spectrophotometric assessment of carbofuran using dapsone as a new chromogenic reagent in formulations and environmental samples P. Nagaraja Química dapsone carbofuran assessment formulations environmental Sensitive spectrophotometric assessment of carbofuran using dapsone as a new chromogenic reagent in formulations and environmental samples P. Nagaraja B. L. Bhaskara Química dapsone carbofuran assessment formulations environmental A simple, sensitive and selective spectrophotometric method for the assessment of carbofuranin various formulations and in environmental water samples is described. The method is based on thecoupling of hydrolyzed carbofuran with diazotized dapsone in alkaline medium at 0 4° C which givesorange red colored product having the absorption maximum at 480 nm. The product is stable for 48 h.Beers law is obeyed in the concentration range of 0.1 4.0 µg ml-1. The molar absorptivity and SandellsSensitivity are 5.0 x 104 L mol-1 cm-1 and 4.4 ng cm-2 respectively. The method is highly reproducibleand is confirmed by RSD values (1.144 %). From the recovery studies it is found that this method isaccurate and it can be successfully employed for the determination of carbofuran. 2006 artículo científico 0100-4670 https://www.redalyc.org/articulo.oa?id=42931406 en http://www.redalyc.org/revista.oa?id=429 Eclética Química application/pdf Universidade Estadual Paulista Júlio de Mesquita Filho Eclética Química (Brasil) Num.4 Vol.31 |
| title | Sensitive spectrophotometric assessment of carbofuran using dapsone as a new chromogenic reagent in formulations and environmental samples |
| topic | Química dapsone carbofuran assessment formulations environmental |
| url | https://www.redalyc.org/articulo.oa?id=42931406 |