Chapter 7: Collecting and Preparing Samples

This text discusses the importance of collecting and preparing samples for chemical analysis. It covers topics such as the effects of sulfide on copper speciation, the calculation of error in analysis, and the separation of analytes and interferents.

Questions

• What is the effect of sulfide on copper speciation?
• How is error calculated in analysis?
• How can analytes and interferents be separated?

Answers

• Sulfide can form stable copper-sulfide phases, which can interfere with the analysis of copper.
• Error in analysis can be calculated using equation 7.19.
• Analytes and interferents can be separated using a variety of methods, such as precipitation, extraction, and chromatography.