Smiths Haz Mat ID vs. Ramen laser technology
We are looking into the purchase of a Smiths Hazmat ID or a ramen laser unit
I am wondering what you guys think about the two. I myself am leaning towards the haz-mat ID due to proven technology and an expansive library.I was also impressed at how well it identified substances.
The 2 ramen laser units we looked at were impressive (i.e. shooting through glass.) that seemed to be it. The salesman failed to identify: brake Fluid, Ethelyne Glycol, Windshield washer fluid, and other commons. the rep said that it also has a 5000-6000 library limit.
Any help would be appreciated
HazMatID FTIR vs. Thermo First Defender Raman
Quote:
Originally Posted by
HazMatTony
Nice comments from Orlando! Here is some updated info if you are looking into Raman more, which I highly recommend. There are two instruments available - RespondeR RCI from Smiths Detection and the FirstDefender from Ahura. If you already have a HazMatID, the Raman technology is a perfect mate, mostly because Raman ignores water so it only looks at the chemicals in the water. It is also nice because you don't have to expose the chemical to the instrument. You can just take a sample from the hot zone, put it in a vial, decon the vial and perform the analysis in the cold zone.
As far as Smiths vs. Ahura, I encourage evaluating both side by side and looking at US Army evaluations and other third-party evaluations. They are distinctly different instruments. The software interface with the Smiths Raman is the same as the HazMatID, so it looks familiar and they can communicate between the two, at an added cost. The Ahura interface is different, and in my opinion, much simpler. Ahura is on the Responder Knowledge Base. Smiths is not (i.e. DHS has not approved purchase using their funding). Ahura has been favorably evaluated by US Army ECBC. I could not find a Smiths evaluation. Ahura unit is more rugged. The side by side comparison I saw was clear that the Ahura unit was more accurate, especially with mixtures because it does an automatic mixture analysis (really cool).
If you don't have an FTIR or Raman, you have a tougher choice. The technologies can see different chemicals. The Raman libraries are now pretty good and still growing. If you really want to identify coffee creamer and tobasco sauce, go with the FTIR. If you are more concerned with real chemicals, especially mixtures, go with the Ahura Raman. It is simpler to use, smaller and less expensive.
There are many updates to this field. Remember, FTIR and Raman are complimentary chemical identification techniques. The most important advice I can offer briefly is that practice and training are more important than the actual instrument. Knowing when to use the right instrument and how to interpret the information is essential. Also, the instruments are USUALLY limited to the number of chemicals in their on-board library. Mixtures will ALWAYS be problematic - a mathematical "algorithm" is simply no substitute for a good, preferably pure sample. Since a pure chemical powder sample rarely happens in the field, it takes a good tech. with the guidance of some lab folk to get the best answer from a tough sample. Smiths and Thermo (purchased the Ahura product line) are good companies with demonstrated history. I work with the State of Iowa lab and we work/advise our HazMat teams regularly on what to purchase. We sit in on product demos and ensure that the teams are getting facts, not sales pitches. We bring chemical unknown samples for the teams to test out. We also have a sample testing program where we send the teams practice samples 3 times/year - completely voluntary on their part. We do this for free as part of our mission to assist the taxpaying citizens of Iowa. In 5 years, we have learned a tremendous amount. Lately I've sat in a numerous HazmatIQ presentations. I'd be happy to elaborate further if desired, feel free to contact me offline.