Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
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 related to the topic.
Question 1
Easy
What is a surrogate in environmental analysis?
💡 Hint: Think about its role in analysis.
Question 2
Easy
What is the purpose of calibration?
💡 Hint: It relates to accuracy.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does a surrogate do in analysis?
- Mimics the analyte
- Is a waste product
- Has no impact
💡 Hint: Consider its role in the entire process.
Question 2
True or False: Calibration is unnecessary if your equipment is new.
- True
- False
💡 Hint: Think about the need for accuracy.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a total of 200 nanograms of a surrogate is added to a sample and 150 nanograms is recovered post-extraction, calculate the recovery efficiency.
💡 Hint: Use the recovery percentage formula.
Question 2
Describe the impacts of not using a surrogate in an environmental analysis process.
💡 Hint: Think about reliability in scientific reporting.
Challenge and get performance evaluation