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Investigation of the toxic mechanism of difenoconazole on protein by UV-Vis Spectroscopy (CAT#: STEM-MB-0964-WXH)

Introduction

As a kind of systemic sterol demethylation inhibitor (DMI), difenoconazole has a good ability to interfere with the mycelial growth and inhibit the spore germination of pathogens that ultimately results in inhibiting fungal growth. Difenoconazole is extensively used in a wide range of crops in many countries for its good control of various fungal diseases. However most of pesticides are not completely degraded after application, their metabolites and some unchanged forms of these compounds are excreted and subsequently enter the ecosystem. Although the triazole fungicides have shorter half-lives and lower bioaccumulation than the organochlorine pesticides, possible detrimental effects on the ecosystem and human health were also existed. For this reason, knowledge of the interaction mechanisms between difenoconazole and plasma protein is of crucial importance for us to understand its possible danger to human body.




Principle

UV-Vis spectroscopy is an analytical technique that measures the amount of discrete wavelengths of UV or visible light that are absorbed by or transmitted through a sample in comparison to a reference or blank sample. This property is influenced by the sample composition, potentially providing information on what is in the sample and at what concentration. The only requirement is that the sample absorb in the UV-Vis region, i.e. be a chromophore. Absorption spectroscopy is complementary to fluorescence spectroscopy. Parameters of interest, besides the wavelength of measurement, are absorbance (A) or transmittance (%T) or reflectance (%R), and its change with time.

Applications

UV/Vis spectroscopy is routinely used in analytical chemistry for the quantitative determination of diverse analytes or sample, such as transition metal ions, highly conjugated organic compounds, and biological macromolecules. Spectroscopic analysis is commonly carried out in solutions but solids and gases may also be studied.

Procedure

1. Calibrate the Spectrometer
2. Perform an Absorbance Spectrum
3. Kinetics Experiments with UV-Vis Spectroscopy

Materials

UV/VIS Spectrophotometer
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