Significance of Absorbance maxima
Absorbance maxima is defined as the maximum absorbance value observed at a particular wavelength during spectrophotometric analysis, indicating optimal conditions for measuring a substance's concentration. Each substance has specific wavelengths where it absorbs the most UV/Visible light, crucial for quantifying drug concentrations. Examples include 328 nm for temozolomide, 240 nm for capecitabine, and 224 nm for Ribavirin. Understanding absorbance maxima is essential for identifying and analyzing various compounds in pharmaceutical research.
Synonyms: Peak absorbance, Maximum absorbance, Absorption peak, Absorbance maximum, Absorbance peak.
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The concept of Absorbance maxima in scientific sources
Absorbance maxima, notably at 430 nm for the Fe(III)-PIEHP complex, signifies the peak absorbance of a solution, crucial for identifying active compounds in plant extracts and quantifying drug concentrations in UV spectrophotometry.
From: World Journal of Pharmaceutical Research
(1) The highest level of absorbance at which a substance can be detected in the UV spectrum, critical for determining the λmax for Ranitidine and Ondansetron.[1] (2) The specific wavelengths (274 nm for acebrophylline and 195 nm for acetylcysteine) at which these drugs exhibit maximum absorbance in distilled water.[2] (3) The specific wavelengths where the maximum absorbance of the drugs is measured during the analysis.[3] (4) The maximum absorbance value observed at a specific wavelength during spectrophotometric analysis, indicating the wavelength of highest response for a substance.[4] (5) The maximum absorbance of a substance measured at a specific wavelength, which is used to determine its concentration.[5]
From: AYU (Journal of Research in Ayurveda)
(1) The peak value of light absorbance measured, indicating specific active constituents in the plant extracts.[6]