Loading the lesson
Loading the lesson
Search AllRounder.ai
Search the courses, subjects, tracks, games and features, or jump straight to a page.
Search the courses, subjects, tracks, games and features, or jump straight to a page.
2 cards from this section. Quick, good the night before a test.
What is a surrogate in analytical chemistry?
Think about what helps analyze the main compound.
Why do we extract samples with hexane?
Consider the solubility properties of hexane.
What is the primary purpose of using a surrogate in environmental analysis?
Reflect on the role of surrogates during analysis.
True or False: The concentration process is necessary to improve the likelihood of detecting trace analytes.
Think about detection limits.
You have added a surrogate of 0.1 mg to 1 L of water. After extraction, you recover only 0.05 mg. Calculate the recovery percentage. What does this indicate about the extraction efficiency?
Remember the recovery formula!
If an instrument provides a response of 90,000 units correlating to 60,000 m and your calibration curve suggests a 2:3 ratio, calculate the unknown mass of the analyte in nanograms.
Use the relationship between response and calibration ratio to solve.
5 more questions in this section. Enroll free to practise them all.
Enroll free