Читать книгу Process Gas Chromatographs - Tony Waters - Страница 61

1 Q1. The way a column works depends on whether the stationary phase is a solid or a liquid. What is the mechanism involved when the stationary phase is liquid?

2 Q2. What is the mechanism involved when the stationary phase is solid?

3 Q3. What are the four variables that determine the solubility of a gas in a liquid?

4 Q4. When a gas and a liquid are in equilibrium with each other, what is happening?

5 Q5. Why do peaks get wider as they travel through a column?

6 Q6. Predict the effect of increased column temperature. If all else were constant, what effect would it have on the peaks?

7 Q7. Predict the effect of increased column pressure. If all else were constant, what effect would it have on the peaks?Check your SAQ answers with those given at the end of the book.