Practice - Matrix Effects and Quality Control
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is BOD?
💡 Hint: Think about how many organisms consume oxygen...
Why is quality control important in analysis?
💡 Hint: What would happen if we had inconsistent results?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does BOD stand for?
💡 Hint: Focus on how it relates to oxygen consumption in biological systems.
True or False: Quality Control is unnecessary if the method is standard.
💡 Hint: Consider whether you trust results without checks.
Get performance evaluation
Challenge Problems
Push your limits with advanced challenges
A water sample from a river has a BOD of 20 mg/L. After dilution and testing, you find the BOD drops to 5 mg/L due to the dilution factor of 5. Discuss potential quality control measures that could yield more accurate results.
💡 Hint: What factors could interfere with diluted samples?
Suppose a wastewater contains microorganisms but registers low oxygen consumption. Propose investigative strategies to resolve this conundrum.
💡 Hint: Consider both the food and the environment of the microorganisms.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.