Analytical Methods Quiz

Which are the main criteria when choosing an Analytical Method?

• Accuracy, Precision, Sensitivity, Selectivity

• Speed and Cost are the only ones

• Robustness is the main one

• Convenience, Per-samples cost, Analysis time, Sensitivity

What is the measure of the variability of individual results when a sample is analyzed several times?

• Accuracy

• Precision

• Sensitivity

• Selectivity

What is the ability of a method to establish significant differences in the amounts of analyte in two samples?

• Sensitivity

• Selectivity

• Precision

• Accuracy

What is the measure of a method's freedom from interferences?

• Selectivity

• Accuracy

• Precision

• Sensitivity

What is the most important design criterion when selecting an analytical method?

• Precision

• Accuracy

• Sensitivity

• Selectivity

What are the advantages of instrumental methods over classical methods?

• Automation, Multi-channel techniques, Low precision, Limited samples

• Low sensitivity, Slow analysis, Manual operation, High cost

• High accuracy, Low cost, Manual operation, Single-channel techniques

• Ability to perform trace analysis, Large numbers of samples analyzed quickly, Automation

What is the main disadvantage of instrumental methods?

• Low cost

• High accuracy

• Equipment cost

• Low sensitivity