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 the purpose of a surrogate compound?
💡 Hint: Think about why we want to compare something.
Question 2
Easy
Name one common solvent used for extraction in environmental analysis.
💡 Hint: We discussed it in class!
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 is the role of a surrogate in analysis?
- To act as a contaminant
- To simulate analyte behavior
- To reduce sample size
💡 Hint: Consider its purpose in comparison to the analyte.
Question 2
True or False: Calibration is only needed when the analyte concentration is high.
- True
- False
💡 Hint: Think about the necessity of accurate measurements.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Design an extraction method for an analyte suspected to be present in very low concentrations in a complex mixture. Outline the steps and reasoning behind your choices.
💡 Hint: Consider the interactions between the analyte and the matrix.
Question 2
You receive a sample with suspected high levels of matrix interferences. Describe how you would modify your analysis method to effectively measure the analyte.
💡 Hint: Think about the composition of your sample and how you can optimize extraction.
Challenge and get performance evaluation