[Comparative study on trace elements in natural colored cotton and white cotton].

Area of Science:

• Agricultural Science
• Analytical Chemistry

Context:

• Natural colored cotton possesses unique properties, but its elemental composition is not well-characterized.
• Understanding the mineral and trace element profiles is crucial for its agricultural and industrial applications.

Purpose:

• To develop and validate a method for simultaneous multi-element determination in natural colored cotton.
• To compare the elemental content of green and brown cotton varieties with white cotton.

Summary:

• A microwave digestion and Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) method was optimized for analyzing multi-elements in cotton.
• The method demonstrated high accuracy, with recovery ratios between 93-111% and relative standard deviations below 4%.
• Analysis revealed significantly higher concentrations of Calcium (Ca), Copper (Cu), Zinc (Zn), Aluminum (Al), Iron (Fe), Strontium (Sr), and Silicon (Si) in green and brown cotton compared to white cotton.

Impact:

• Provides a reliable analytical method for elemental profiling of colored cotton.
• Offers foundational data for further research into the agricultural and biochemical significance of elemental variations in colored cotton.
• Contributes to the understanding of factors influencing the natural coloration and potential nutritional value of cotton fibers.