Lafon's reagent, a solution of ammonium or sodium selenite, finds use as a test __________ codeine.
A. detection
B. to detect
C. to have detected
D. to detectable
Answer:B
Lafon's reagent, a solution of ammonium or sodium selenite, finds use as a test __________ codeine.
A. detection B. to detect C. to have detected D. to detectable