SIFT-MS in ‘Border’ Applications Container Air Analysis – the ‘Residual Fumigants’ issue Fumigant-testing technologies Syft’s ‘mature’ CAA application Search for complementary applications – ‘Swab Desorption’ Narcotics Explosives detection CWA and precursor detection SIFT-MS Technology
Container Air Analysis
All container fumigants are harmful to humans Containers can arrive at destination with dangerous levels – documentation is often unreliable Residual fumigants create a hazard for workers entering the containers Fumigants: the danger Methyl bromide Chloropicrin Hydrogen cyanide Ethylene oxide Phosphine Sulfuryl fluoride Ethylene dibromide
Study conducted at Port of Rotterdam inspected 300 unmarked containers 29% exceeded the Dutch safety levels Methyl bromide (MeBr) was especially high – in two cases concentrations were 5 times higher than the safety level Entering a container is risky! The ‘Residual Fumigants’ issue: Netherlands RIVM study
Syft has tested thousands of containers: 50% have measurable levels of fumigants 30% have levels above the TRGS 512 safety limits 10-20% have levels above international MAC levels Syft’s experience
Analytical Tools for Fumigant Analysis
Colorimetric tubes Crystals in tube react to a particular chemical(s) Each fumigant requires a different tube: one Simultan kit is $100 for ONE TEST
Limitations of colorimetric tubes Colour change result is subjective, leading to poor measurement accuracy Cross-sensitivities produce false positive and false negative readings High cost consumable items Environmental concerns with disposal Complicated and fiddly to operate
Electronic devices Various technologies are available: IMS + MOS systems Photoionisation detectors(PIDs) Infrared sensors Much more cost effective than colorimetric tubes Require minimal training However these devices are not very “specific” so can cause a significant number of false alarms
Market pull There is a growing demand for a more accurate system delivering the following benefits: Produce very few false positives and negatives, Be reliable and consistent, Be able to analyse ALL the dangerous compounds that are observed in containers, in one measurement, AND Add new compounds as required
Robust design Simple to operate (touch screen) Very fast (2 minutes per sample) Very low cost per sample Repeatable analytical-grade measurements Uses no solvents or harmful substances The Syft solution The Voice200 ® instrument
Operated with minimal training and no technical experience: 1.Firstly take an air sample from container 2.Connect the sample bag to the analysis device 3.Begin analysis by pressing ‘start’ button 4.Analysis time for a sample is 1 – 2 minutes 5.Results are easy to interpret. The Syft Solution
Simple software A common problem with analytical devices is that the user requires specialist skills to operate them WE USE TOUCH SCREEN SIMPLICITY
Compound concentrations Extendable list of compounds Accurate and clear results Safety limits can be user-defined Unambiguous results Integrates with existing IT systems via LAN, barcode reader, etc.
Syft fumigant testing now in use at eight Australian ports Previously used colorimetric tubes – high OPEX costs, low user confidence Selected Syft after three years’ evaluation of technologies Australian Customs Service
CBSA has six Syft instruments at port sites Use a “mixed” method to test for fumigants and a few TICs CBSA chose Syft after a rigorous, lab-cased investigation of available technologies Canadian Customs
In Benelux, private companies provide testing / ventilation services Syft equipment is used in mobile testing units Specificity is important – false positives are costly! High customer satisfaction due to fast, reliable measurement, and large cost savings versus colorimetric tubes European Commercial Customers
Syft’s search for complementary applications Syft’s ‘gold standard’ CAA application has been sold to ACS, CBSA European Customs agencies also evaluating Syft for CAA Is Syft just for ‘Health & Safety’? What ‘mission-related’ applications can we offer?
Swab Desorption Trace detection applications for Border Control, Security Substance identification SIFT-MS benefit of very high specificity means few false positives
Narcotics 1.Identified via breakdown products, impurities and other indicator compounds. 2.Only the base form is detectable. 3.Salts (e.g. hydrochloride & sulfate) may be detectable via swab based methods.
Drug Precursors 1.Salts ( e.g. hydrochloride & sulfate) may be detectable via swab-based methods. Compound NameGas Phase DetectionSwab-based Detection EphedrineNoYes 1 PseudoephedrineNoYes 1 NorephedrineNoYes 1 P2PYes 2PYes SafroleYes IsosafroleYes PiperonalYes Acetic AnhydrideYes
Explosives & Taggants 1.Practical detection of TNT is via the DNT impurity 2.Plastic explosives may be detectable, but most likely via taggants, e.g. DMNB.
CWAs
CWA Precursors & Surrogates 1. Also detectable are DEMP, DMEP, DEEP and other similar compounds
Australian DOD DSTO Summary Confirmed ability of Voice to perform analysis of CWAs. Voice has ability to discriminate CWAs from other interferent analytes. SIFT-MS can also be used to detect and analyze impurities. Quantitative evaluation confirmed Voice is capable of detecting GB at ppt level.
SIFT-MS Technology
The science: what does SIFT-MS do? Selected Ion Flow Tube – Mass Spectrometry (SIFT-MS) uses precisely controlled chemical ionisation reactions to detect and quantify trace amounts of volatile organic compounds (VOCs) … from whole air … in real time … with typical detection limits at part-per-trillion level (by volume – pptv)
SIFT-MS Principles
Syft Product Evolution University model 4,000 kg Syft Tech Lab Demo 500 kg Voice100 TM 1 st Commercial 450 kg Voice200 ® 2 nd Gen. 212 kg July 2007 Syft formed Late 2002 July 2007 April 2005