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Fourier-transform infrared spectroscopy

Fourier-transform infrared spectroscopy

Search complete. 11 mentions across 6 episodes found for "Fourier-transform infrared spectroscopy".

Oct 8, 2026

Ashton FlindersGUEST
33:21
In my opinion, they've got one of the most difficult jobs here.
Ashton FlindersGUEST
33:24
One of the primary instruments they use is called a Fourier transform infrared spectrometer, an FTIR.
Ashton FlindersGUEST
33:31
And so that can measure the different gas phases that are coming out within the volcanic eruption.
Ashton FlindersGUEST
33:37
The problem is it's an infrared technique.
Robert StackNARRATOR
20:13
But were the fibers in Larry's trunk an exact match to the fibers from the blanket covering Judy's body? To find out, Jones used Fourier transform infrared spectroscopy, a technology not available in 1978.
Curtis JonesSOUNDBITE_SPEAKER
20:32
The FTIR uses infrared energy and it passes that infrared energy through the fiber or material that you're examining, and the infrared energy is absorbed or not absorbed by the chemical bonds of the material, and that produces a spectrum of peaks and valleys that can be, uh, used to determine what chemical bonds are present.
Robert StackNARRATOR
20:56
And the result, the three fibers from the blanket were synthetic rayon, and the three fibers found in the trunk were also synthetic rayon.
Curtis JonesSOUNDBITE_SPEAKER
21:09
The evidence doesn't lie.
Yidian LiuGUEST
3:06
We kind of dye plastic in a special dye, and it shines under a very special wavelength, and we can quantify, okay, it's 200 microplastic per liter of water, or it's 50.
Yidian LiuGUEST
3:17
And if you want to have a very detailed understanding, you have to use, like, those advanced equipment such as FTIR, GCMS, and those are not really available in most labs.
Yidian LiuGUEST
3:26
So-
Richard GearhartHOST
3:27
Mm
Bob KashockHOST
1:59
... at using the equipment we already have? Because hazmat has become incredibly technology-driven.
Bob KashockHOST
2:06
I mean, you got four gas meters, PIDs, Raman, FTIR, radiation, colorimetrics, wireless-
Derek SchaumanHOST
2:14
Archery and a pear tree.
Derek SchaumanHOST
2:15
[laughs]

7 MINS LATER

Derek SchaumanHOST
9:02
Um, [laughs] when we, when we start talking about, um, our advanced detection, that's, that's where we start to see more of this challenge.
Bob KashockHOST
9:11
Yeah, absolutely.
Bob KashockHOST
9:12
And let's, let's say your team buys RAMAN or FTIR.
Bob KashockHOST
9:16
Now we've moved the wave be- well beyond the four numbers on the screen.
Damon HunterGUEST
10:13
Seeing syringe disposal in bathrooms is really great.
Damon HunterGUEST
10:20
But it's just not... far enough like I'll tell people about drug checking with FTIR machines and they're like oh I don't know about that one and I'm like well a test strip and go cover everything especially with how many analogs we have coming out
Dallas BraggHOST
10:32
right now
Damon HunterGUEST
10:35
and I think even in the queer community when we get into chem sex it's like so much is happening there when it comes to harm reduction that like is holding it back that just seems to be getting a little worse in some ways right now can you talk more about that Yeah, I think right now we're just seeing this shift in our culture overall here in the U.S. towards conservativism, right? We're seeing that pop up.

53 MINS LATER

Dallas BraggHOST
64:14
They're
Damon HunterGUEST
64:15
keeping Narcan around just in case.
Damon HunterGUEST
64:18
And so that's where FTIRs can really come in handy is like, we can actually test the drugs and start figuring out where certain contaminants are at.
Damon HunterGUEST
64:29
There's a really great place out of North Carolina where you can actually send all of your results and they compile it for the entire country and create like alert systems as well for, hey,
Surasshan SupremaniamGUEST
15:48
And then I had to actually seek a lab assistance because it had to be a surface contaminant.
Surasshan SupremaniamGUEST
15:59
But, you know, it's because the company was having, you know, FTIR and so on.
Surasshan SupremaniamGUEST
16:06
We just don't have those equipment.
Surasshan SupremaniamGUEST
16:07
So I went to a NASA certified lab at University of Toronto and and you know worked with them and we were able to get to the elemental level of what that contaminant was and you know narrowed it down to it was actually a contaminant from the PCB shop it was a process from the PCB shop so I But that too, having the know-how, hey, quickly going through all the processes, crossing out all the variables at the plant level, and then knowing that, hey, in order to solve this, we actually have to go out to another lab to get to that level.

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