Some kinds of analysis machinery, like GC, ICP, and DSC or DTA, are probably inherently fairly large; other kinds, like FT-IR, other kinds of spectrometry, TLC, HPLC, other kinds of liquid chromatography, XRF, XRD, and NMR, can be miniaturized and mass-produced. There hasn't been much pressure to do this because bio and chem labs don't care if their spectrophotometer costs US$0.12 or US$12000 or whether it weighs 100 mg or 100 kg; they need one to get their work done, they don't need it to be portable, and they aren't going to lose it because it stays in the lab. But that doesn't mean it can't be done. Even Victorian-era-style reagent testing can be made quantitative in some cases!
Many of the types of analysis listed here are elemental analysis only, which are useless for trying to identify pharmaceutical analytes or determine their concentration.
Out of all of these, microfluidic liquid chromatography is the least science fiction. There's plenty of literature about it but nobody really "has it working", and the reality is that it's not likely to ever have the same capability as benchtop HPLC.
That's mostly true, but if a pill has significant amounts of lead, arsenic, and mercury in it, you know something went wrong, and you shouldn't take it. Even XRF might be enough to allow you to safely use lead-based or arsenic-based catalysts in your synthesis.
> Out of all of these, microfluidic liquid chromatography is the least science fiction. There's plenty of literature about it but nobody really "has it working", and the reality is that it's not likely to ever have the same capability as benchtop HPLC.
Thanks! Can you think of any other plausibly miniaturizable general-purpose analysis techniques? Those are just the ones I came up with off the top of my head. I think microfluidic liquid chromatography doesn't actually have to run faster than the bear, just faster than color-changing DanceSafe test kits.
As for science fiction, https://news.ycombinator.com/item?id=29816434 talks a bit about how today's science fiction is tomorrow's old news.
(my phd in nmr is from 20 years ago... even then it was hard to justify the expense of nmr machines in structural biology...)
Do you think there are some fundamental obstacles to miniaturizing NMR, and if so, what?
The "room temperature" superconductors are not used at room temperature in these cases, they're still cooled down. And so far the only spectrometer I know of where they are used is the still extremely new 1.2 GHz Bruker. And that one is almost certainly somewhere between 10 and 20 million USD. The new superconductors are low temperature superconductors, not room temperature. And even then they still work better at lower temperatures. At best you can remove the liquid helium from the system and use liquid nitrogen only, which is an advantage but still really far from room temperature.
Yes, I don't know if the current room-temperature superconductor material (which really is room temperature, 15°C) will ever be useful for this; it was only discovered in 02020, so it is very unlikely that anyone is using it in a product today, even if they find a way to apply the necessary pressure (267 GPa, thus requiring ultrahard anvils). You're probably thinking of something like YBCO, which is "high-temperature" in the sense you're describing, requiring only LN₂, not "room-temperature".
Costs change over time. There was a time when solar panels cost 100k USD, too. A lot of the costs you're describing are NRE; others are costs that can be reduced.
If you had improvements to NMR they would actually go first to other things than doing chemical analysis of anarchist drug batches. IE there are other industries that will buy all your machines if they existed.
The real question is why would you EVER use NMR for just about anything? It's really high cost and the total value of the data is lower than just about any other technique. It really only makes sense in research situations.
Ultimately what everyday people will end up using is whatever is cheap and works well enough. Right now NMR isn't cheap, and neither is FT-IR or XRD, but these things change over time. Benchtop NMR is already good enough for distinguishing between significant classes of contaminants that could be in your purported insulin.
I'm typing this on a 50-gigaflops computer, which is faster than the Cray Y-MP Los Alamos had back in the 01990s, and people routinely buy teraflops video cards now, any one of which is faster than ASCI Option Red, if you remember that. I just drank a mass-produced soft drink out of a can made of aluminum, the metal Napoleon III preferred to gold to exhibit his wealth. Last year Chinese companies brought three covid vaccines to market within six months of the disease's discovery and started mass vaccinations, though most observers had predicted a minimum of 18 months. SpaceX is routinely landing reusable rockets on their tails now, and the world's energy infrastructure is rapidly shifting from fossil fuels to solar.
Things change. Today's science fiction is tomorrow's old news.
