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 retention time?
💡 Hint: Think about the time measurement in chromatography.
Question 2
Easy
Why is calibration necessary in chromatography?
💡 Hint: Consider how we relate responses to amounts.
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 retention time help us identify?
- Molecular weight
- Analyte identity
- Temperature
💡 Hint: Think about what retention time signifies in analysis.
Question 2
True or False: Calibration is unnecessary in chromatography.
- True
- False
💡 Hint: Consider the purpose of calibration in scientific measurements.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given a set of retention times for two unknown compounds, one at 2.5 minutes and another at 3.2 minutes, how would you determine which is which using standards?
💡 Hint: Think about the known behavior of each standard.
Question 2
A chromatographic method yields peak responses but calibration standards do not align with expected results. What could be the issue?
💡 Hint: Consider all elements affecting calibration integrity.
Challenge and get performance evaluation