• Dopant Permeation Tubes

Laboratory Products

Dopant Permeation Tubes

Sep 06 2011

Kin-Tek Laboratories, Inc is a key manufacturer of dopant permeation tubes used in detection systems for trace concentrations of narcotics, explosives, chemical warfare agents (CWAs) and industrial airborne molecular contaminants (AMCs). Detection systems for these applications are based on ion mobility spectroscopy (IMS) and are typically used for airport (TSA) and other security applications, law enforcement, Immigration and Border Patrol, the military and atmospheric monitoring in computer chip manufacturing operations.

Dopant tubes continuously dispense a small flow of a reagent vapour used to enhance response to specific substances. The basic dopant tube is a small plastic cylinder with the pure dopant compound sealed inside. Dopant vapour leaks slowly (and continuously) into the detection system sample stream where it reacts to enhance detection of the target compound.

Several configurations and kits are available for specific applications. Typical dopant tube kits for narcotics detection contain three tubes emitting ammonia vapour, supplied as a set and shipped in a metal cylinder. Kits for explosives detection in airports and other public areas contain a single tube emitting dichloromethane supplied in a plastic shipping tube. Other common dopants available include acetone and dimethyl methyl phosphonate (DMMP) in special configurations. Other materials are available for specialty applications.

Digital Edition

Lab Asia 29.4 - August 2022

August 2022

In This Edition Chromatography - Automated Sample Preparation:The Missing Hyphen to Hypernation - New Low Volume Air Sampler for PFAS Analysis - Analytical Intelligence Starts with the Samp...

View all digital editions


ACS National Meeting & Expo, Fall 2022

Aug 21 2022 Chicago, IL, USA & Online


Aug 22 2022 Frankfurt, Germany

IMSC 2022

Aug 27 2022 Maastricht, Netherlands

EuCheMS Chemistry Congress

Aug 28 2022 Lisbon, Portugal

Medical Fair Asia 2022

Aug 31 2022 Singapore

View all events