Collaborative Testing Services, Inc.
P.O. Box 650820, Sterling, VA, USA 20165-0820 1-571-434-1925
CTS offers drug analysis proficiency tests that provide laboratories around the world with a key tool to ensure efficient operation. To make tests as relevant as possible, a diverse range of controlled (U.S. Schedule 5 to Schedule 1) and non-controlled samples are used.
CTS's qualitative tests demand accuracy from analysts: two samples are provided and neither, one, or both samples can contain controlled substances. An additional qualitative test focuses on the analysis of botanical samples for marihuana, with the choice to perform quantitative analysis of THC, where applicable. CTS also offers two quantitative tests specifically designed to focus on your laboratory's abilities to determine the purity of a known drug sample. Comparable on-demand options for both standard drug analysis and marihuana are also available for testing on a flexible schedule.
| 5001 Drug Analysis | 2025: ships March |
| 5051 Quantitative Drug Analysis (Methamphetamine) | 2025: ships April |
| 5031 Marihuana Identification & THC Quantitation | 2025: ships June |
| 5041 Synthetic Drug Analysis | 2025: ships July |
| 5002 Drug Analysis | 2025: ships August |
| 5061 Quantitative Drug Analysis (Cocaine HCl) | 2025: ships September |
2019
19-502 Drug Analysis
2019
19-501 Drug Analysis
2018
18-502 Drug Analysis
2018
18-501 Drug Analysis
2017
17-502 Drug Analysis
2017
17-501 Drug Analysis
2016
16-502 Drug Analysis
2016
16-501 Drug Analysis
2015
15-502 Drug Analysis
2015
15-501 Drug Analysis
2014
14-502 Drug Analysis
2014
14-501 Drug Analysis
Manufacturer's Information reports for all Drug Analysis tests can be found on the CTS Customer Portal.