What are the two phases of drug identification?

What are the two phases of drug identification?

• A. Color tests (screening) and 2. Mass spectrometry (identification).
• B. Screening tests (nonspecific and preliminary) 2. Confirmation tests (specific identification).
• C. Qualitative tests 2. Quantitative tests.
• D. Field tests 2. Laboratory tests.

Answer: (B)

Drug identification is a two-step process: first, screening tests that are nonspecific and quick to flag potential drugs, then confirmation tests that are specific and provide definitive identification. Screening tests are designed to be broad and sensitive, catching possible positives but not yet naming the exact substance, so they can point you toward what to test next. Confirmation tests use targeted instrumental analyses to pin down the exact compound, giving unambiguous results that can be relied upon in legal contexts. This workflow distinguishes the general, rapid screening from the precise, confirmatory identification, which the other options don’t capture as clearly—the alternatives mix up methods, locations, or data types rather than describing the two necessary phases.

Drug identification is a two-step process: first, screening tests that are nonspecific and quick to flag potential drugs, then confirmation tests that are specific and provide definitive identification. Screening tests are designed to be broad and sensitive, catching possible positives but not yet naming the exact substance, so they can point you toward what to test next. Confirmation tests use targeted instrumental analyses to pin down the exact compound, giving unambiguous results that can be relied upon in legal contexts. This workflow distinguishes the general, rapid screening from the precise, confirmatory identification, which the other options don’t capture as clearly—the alternatives mix up methods, locations, or data types rather than describing the two necessary phases.