12 Questions
What is the principal limiting step in the chemical analysis of natural products?
Extraction of metabolites from the matrix
Which technique intensifies solvent extraction by innovative methods like microwave or ultrasound?
Pressure liquid solvent extraction
What step in the analytical procedure is complete after only seconds or minutes?
Analysis using gas chromatography
Which type of extraction represents 80% of the total processing time in the analytical procedure for natural products?
Solvent-extraction procedure
What is the most commonly used method for concentration or purification after extraction in the analytical procedure for natural products?
Distillation
Which technique is used to transfer the desired compounds by liquid-liquid extraction in the analytical procedure for natural products?
Gravimetry
What is the main goal of Green Analytical Chemistry?
To develop new techniques that reduce the influence of chemicals on the environment
What is a key challenge faced by researchers according to the text?
Developing techniques to meet the need for information while reducing environmental impact
Which ancient civilizations are mentioned as having used innovative extraction processes?
Mayas and Aztecs
What extraction technique is highlighted in the text as a solvent-free method for millennia?
Crushing olives for olive oil extraction
Why does virgin olive oil not require further treatment before consumption?
Because it preserves volatile and non-volatile compounds through mechanical extraction
What is the principle behind extracting essential oils using cold pressing?
Squeezing at room temperature to release essential oils
Test your knowledge on the analytical procedure for natural products, including steps like extraction and solvent evaporation. Learn about various extraction techniques such as Soxhlet extraction, microwave extraction, and supercritical solvent extraction.
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