Introduction to Instrumentation Analysis

Define analysis

• Detailed examination of elements or structure of something

• Detailed examination of something without purpose

• Examination of a structure of something

• Examination of physical structures of elements

What to consider when purchasing analytical instruments?

• Accuracy

• Precision

• Efficiency

• Standardisation

• Cost

Choose the types of errors in analysis

• Gross

• Random

• Systematic

• Efficient

"Repeated inaccuracy in making measurements"

Choose the name for the definition of the error in the quotation.

• Gross error

• Random error

• Systematic error

• Efficient error

Choose the definition for "accuracy"

• The ability of measuring or calculating something to its closest value

• The ability of measuring something to the largest value

• The ability of measuring something again and again

A pharmaceutical analyst performed an assay test to determine the content of a tablet. She prepared 4 test solutions and obtained 98%, 99% 100% and 98% results. How do you describe her analysis?

• Inaccurate and precise

• Inaccurate and imprecise

• Accurate and precise

• Accurate and imprecise

A pharmaceutical analyst performed an assay test to determine the content of a tablet. He prepared 4 test solutions and obtained 90%, 91% 100% and 110% results. How do you describe his analysis?

• Accurate and imprecise

• Accurate and precise

• Inaccurate and precise

• Inaccurate and imprecise

A pharmaceutical analyst performed an assay test to determine the content of a tablet. She prepared 4 test solutions and obtained 90%, 89% 85% and 92% results. How do you describe her analysis?

• Accurate and precise

• Accurate and imprecise

• Inaccurate and imprecise

• Inaccurate and precise

The following is the role of quality control (QC), EXCEPT

• Identify non conforming products

• Investigate non conforming products

• Perform all parameters of QC tests

• Deliver the products to customers

Choose the CORRECT definition of quantitative analysis

• Measurement of the quantities of particular constituents present in a substance

• Measuring the physical appearance of substance

• Measuring the weight of a particular constituents present in a substance