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
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.
Journal of Ravishankar
University-B, 30 (I &II), 60-65
(2017)
Assessment of
Fenvalerate in Water, Soil and Vegetable Samples
Mamta Nirmal, Prashant
Mundeja, Kalpana Wani, Vindhiya Patel, Raisa Khatoon, Ajay Kumar Sahu, Deepak
Kumar Sahu, Manish Kumar Rai, Joyce Rai and Pushpy Michael
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.
Corresponding author: mkjkchem@gmail.com
[Received 15 January 2018; accepted 7 February 2018]
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.
Keywords: spectrophotometry,
fenvalerate and p aminodimethylbenzaldehyde.
NOTE:
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