Oh my God!!!
This company keeps cropping up as some kind of threat to IMSC.
Let me provide you all with an even bigger sniffer threat...
1st detect is a "lab" instrument it states. Not ready for prime sniffing time in spite of what they say after. The only thing that is ready and cost effective for PST is IMSC equipment.
From your link ...
'While currently deployed IMS-based trace detectors are simple, low cost, and operate at atmospheric pressure they exhibit major shortcomings which include, high false alarm rates due to limited chemical specificity, low sensitivity (high rate of false negatives), limited and fixed (predetermined) range of detectable explosives (threat materials), and a need to frequently calibrate the detectors by running standards in the presence of various backgrounds. Because of its powerful analytical capability, a mass spectrometer (MS) avoids most of the problems associated with IMS. The advantages offered by MS-based systems include lower alarm threshold while maintaining low false alarm rates by greater chemical specificity (a factor of 100 better using modest resolution MS). The uniqueness of mass spectrometry lies in its chemical specificity as it directly measures a fundamental property of the target molecule—its molecular weight—and thus provides a highly specific means of identifying the molecule. Furthermore, MS-based systems provide wider and automatically reconfigurable ranges of detectable chemical threats including explosives, chemical and biological warfare agents.'
p.s. Ion Trap has greater resolution than QMS
"With ion trap technology, and this is one reason why we used an ion trap, is the MSn mode – in lab instruments they call it MS/MS, but it is essentially the same thing – and ion trap is the only type of architecture where you can do multiple levels of analysis, without having to put additional hardware in. The MSn mode in an ion trap is done through software control over time rather than spatially as with quads or TOFs, so if you get a hit on a threat you can do a secondary analysis where you isolate the potential threat, re-fragment it in the trap and analyse the daughters of the daughter ions. You can do this secondary analysis in the same trap that you did the primary analysis, so you don’t have to add additional hardware – which would mean more weight, power and cost – and you can still do the isolation re-fragmentation and secondary analysis multiple times (MS3, MS4, and so on).”
“For most of the main stream MS – Time of Flight, quadrupole – the impact on those architectures when you shrink them is a loss of resolution -it becomes less specific, you lose performance. Ion trap is the one that you can miniaturise without losing resolution – the trade-off to shrinking an Ion Trap is the sensitivity – how many ppm or ppb can you see when you do the analysis. We are compensating for this loss in sensitivity with a preconcentrator tech that we are developing with DTRA and Dugway Proving Ground. It is a novel technology that helps increase the concentration presented to the MS and that, in effect, compensates for some of the sensitivity issues inherent in shrinking ion trap.” In terms of the miniaturisation Dr Wylde went on to explain, “MS operates at the limit of stability of ions in an electric field and because you are always operating at or near the stability limit then manufacturing tolerances become critical: when you are making an instrument that has a 5cm trap, if the tolerances are x microns then a few microns on top of a few centimetres is not catastrophic, when you put a few microns on a few millimetres then you are talking about tolerances that can adversely affect the performance of the instrument."
p.s. 1stDetect's detector is 12lb without the battery
ASTCs miniature mass spectrometer is a joke!!!!!! The monster is as big as the entire handheld IMSC 150 sniffer!!!!!!!!!!!!!!!!!! It weighs a freaking 15 pounds.
For an insiders view of what IMSC has up its mass spectrometer sleeve and maybe even in its products check out the company that it owns. Their mass spectrometer is the size of a USB memory card!!!!!!!
IMSC itself specializes in miniature ion "mobility" spectrometers. Combine mobility and mass and you get an IMSC patented duo detector that will be unrivaled when it hits the market.
Currently I don't think that IMSC has the Ion Mass Spec devices in product. What are those guys in San Diego doing anyways?
So if IMSC wanted to they probably could package their miniature mass spec. along with one of their miniature vacuum pumps and a power source = 8 pounds.
But not 15 freaking pounds!!!!!!!!!!
My God, IMSC should be out in front beating up the Chinese for the first lunar base and the first man on Mars - not just making sniffers.