Sensitive Spectrophotometric Determination of Deltamethrin Using Leuco Malachite Green in Environmental Samples

Nirmal, Mamta; Kumar, Manish; Patel, Vindhiya; Khatoon, Raisa; Wani, Kalpana; Rai, Joyce

doi:10.14233/ajchem.2016.19518

Cited by 2 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results indicate that a many-fold enhancement in the recovery % and extraction efficiency will be acquired using PAS coupling reagent-assisted microextraction of pyraclostrobin as compared to the other methods. The present method based on PAS:pyraclostrobin complex is found to be simple, eco-friendly, sustainable, selective, sensitive and cost-effective as compared to different spectroscopic and chromatographic methods [22,[24][25][26].…”

Section: Applications To Agricultural and Environmental Samplesmentioning

confidence: 99%

Colorimetric Determination of Pyraclostrobin Fungicide Using P-Amino-sulphonic Acid Coupling Reagent in Agricultural Soil/Environmental Samples by Spectrophotometric Analysis

Bhatt,

Kumar Rai,

Rai

2024

Advances in Colorimetry

View full text Add to dashboard Cite

A simple and sensitive method for the determination of pyraclostrobin, a widely used fungicide, is described here which is based on diazotization and coupling with 4- aminosulphonic acid in alkaline medium. The reaction mechanism is based on the pre-equilibrium formation of amine and diazonium salt followed by a rate-limiting attack of the diazonium ion at an N-atom (N-coupling) to appear the corresponding red colored azo complex. The λmax, molar absorptivity and Sandell’s sensitivity related to the UV-Visible absorption spectrometry were found λmax = 600 nm, 2.7 × 104 L mol−1 cm−1 and 1.01 × 10−5 μg cm−2, respectively. Some of the important parameters like linearity range, limit of detection (LOD), limit of quantification (LOQ), correlation coefficient (R2) and recovery% were calculated 3 to 12 μgmL−1, 1.01 μgmL−1, 3.08 μgmL−1, 0.984 and 93.5–99.3%, respectively for the determination of organochlorine like pyraclostrobin using coupling reagent. The advantages of the present method are its simplicity, high selectivity and cost effective. In this article, the method has been validated by applying it to samples from different environmental conditions.

show abstract

Section: Applications To Agricultural and Environmental Samplesmentioning

confidence: 99%