[Measuring trace germanium in vegetables with the spectrofluorometric method]

Area of Science:

• Analytical Chemistry
• Environmental Science
• Food Science

Context:

• Accurate quantification of trace elements in food is crucial for nutritional and safety assessments.
• Germanium (Ge) is a metalloid with potential health benefits, necessitating reliable measurement techniques.
• Existing methods for trace Ge determination can be complex and time-consuming.

Purpose:

• To establish a simple, accurate, and sensitive spectrofluorometric method for quantifying trace germanium in vegetables.
• To validate the method's performance, including its detection limit and accuracy.
• To demonstrate the applicability of the method using a standard addition approach without prior extraction.

Summary:

• A novel spectrofluorometric method was developed for trace germanium (Ge) determination in vegetables.
• The method achieved a low detection limit of 0.569 ng/g and high accuracy (+/- 3.59% at 1 microg Ge).
• Germanium content was successfully quantified using the standard addition method with mixed acid digestion, bypassing the need for extraction.

Impact:

• Provides a streamlined analytical tool for researchers and regulatory bodies assessing germanium levels in food.
• Facilitates more widespread monitoring of germanium in dietary sources.
• Contributes to understanding the bioavailability and nutritional significance of germanium in vegetables.