In Bolivia, the United Nations Office on Drugs and Crime is delivering a project on precursor control.
Proportion of responding States with measures to enhance precursor control, 1998-2000 and 2000-2002.
Precursors of narcotic means and psychotropic substances are also under control if they appear on the 1998 List.
Penneability of cells for labeled precursor was determined by the pool of free labeled amino acid.
Several representatives commended INCB and UNDCP for their initiatives in improving the control of precursors.
Strengthening systems for the control of precursor chemicals and to prevent diversion of and trafficking in such chemicals.
The need for greater awareness of precursor problems at the national and regional levels was noted.
The reaction vessel is initially transparent: the precursor gases are entirely invisible.
Xanthene compounds were found to be an excellent precursor for biologically active compounds (agents).
We're investigating a report that precursor chemicals have been stored in official buildings.
something that precedes and indicates the approach of something or someone: predecessor, harbinger, herald, forerunner, indication, indicant
a person who goes before or announces the coming of another: predecessor, someone, somebody, soul, person, forerunner, individual, mortal
a substance from which another substance is formed (especially by a metabolic reaction): material, stuff