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Author(s): Mamta Nirmal, Prashant Mundeja, Kalpana Wan, Vindhiya Patel, Raisa Khatoon, Ajay Kumar Sahu, Deepak Kumar Sahu, Manish Kumar Rai, Joyce Rai, Pushpy Michael

Email(s): mkjkchem@gmail.com

Address: School of Studies in Chemistry
Pt. RavishankarShukla University, Raipur (Chhattisgarh), 492010, India
Chhattisgarh Council of Science and Technology, MIG 25, Indravati Colony, Raipur (Chhattisgarh), 492007, India.

Published In:   Volume - 30,      Issue - 1,     Year - 2017

ABSTRACT:
Simple and sensitive spectrophotometric scheme was described for the determination of fenvalerate in environmental samples. The scheme was based on the hydrolysis of 1 N of 5 mL NaOH to form cyanohydrin. The cyanohydrin is reacted with bromine and pyridine to form glutaconic aldehyde, which is then coupled with p-Dimethylaminobenzaldehyde to give yellow dye having maximum absorbance at 440 nm. Beer’s law is obeyed over the concentration range of 0.6- 6.2 µg in a nal solution volume of 25 mL. The molar absorptivity of the colored system is 3.84×104 L mol-1cm-1 and Sandell’s sensitivity is 2.4×10-3 µg cm-2. The reproducibility assessed by carrying out seven days replicate analysis of a solution containing 0.6 µg of fenvalerate in a nal solution volume of 25 mL. The standard deviation and relative standard deviation for the absorbance value were found to be ± 3.4×10-3 and 1.5% respectively. The proposed scheme is sensitive and free from the interference of other toxicants. The analytical parameters were optimized and the scheme was applied to the determination of fenvalerate in environmental samples.

Cite this article:
Nirmal, Mundeja, Wani, Patel, Khatoon, Sahu, Sahu, Rai, Rai and Michael (2017). Assessment of Fenvalerate in Water, Soil and Vegetable Samples. Journal of Ravishankar University (Part-B: Science), 30(1), pp.60-65.


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