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Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.15 [2008] >
IJCT Vol.15(3) [May 2008] >
| Title: | A simple and sensitive method for determination of carbon disulphide in environmental and biological samples |
| Authors: | Tamrakar, Urmila
Gupta, V K
Mathewa, Sunitha B
Pillai, Ajai K |
| Keywords: | Spectrophotometric method
Carbon disulphide
Diphenylcarbazide
Potassium dichromate |
| Issue Date: | May-2008 |
| Publisher: | CSIR |
| Abstract: | An analytical method using potassium dichromate and diphenylcarbazide for determination of carbon disulphide has been proposed. In this method carbon disulphide reduces the Cr(VI) to Cr(III) and the unreduced Cr(VI) forms a pink-purple complex with diphenylcarbazide in acidic medium, which is measured spectrophotometrically at 530 nm. Beer’s law is obeyed over a concentration range of 0.01 to 0.1 µg mL⁻¹. Molar absorptivity and Sandell's sensitivity were found to be 5.5 × 10⁵ L mol⁻¹ cm⁻¹ and 0.00013 µg cm⁻² respectively. The optimum reaction conditions and other analytical parameters were evaluated. The effect of interfering ions on the determination of CS₂ was studied. The method has been successfully applied
for the determination of CS₂ in grain samples, fungicides
(ziram, thiram) and various environmental and biological
samples. |
| Page(s): | 306-309 |
| ISSN: | 0971–457X |
| Source: | IJCT Vol.15(3) [May 2008]
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