A direct spectrophotometric method for the simultaneous determination of nitrate and nitrite by column preconcentration has been developed. Nitrate is reduced to nitrite in a copper-coated cadmium column which is then treated with azo dye reagent by column preconcentration, and the absorbance due to
โฆ LIBER โฆ
Kinetic-spectrophotometric determination of methyl parathion in water and vegetable samples
โ Scribed by Neetu Tiwari; Anupama Asthana; Kanchan Upadhyay
- Book ID
- 119360035
- Publisher
- Elsevier Science
- Year
- 2013
- Tongue
- English
- Weight
- 433 KB
- Volume
- 101
- Category
- Article
- ISSN
- 1386-1425
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## Abstract A spectrophotometric method for simultaneous analysis of methamidophos and fenitrothion was proposed by application of chemometrics to the spectral kinetic data, which was based upon the difference in the inhibitory effect of the two pesticides on acetylcholinesterase (AChE) and the use