In-Situ Fourier Transform Infrared (FTIR) Spectroscopy with ReactIR

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  • Опубликовано: 30 сен 2015
  • Ok, so, why would I even bother with in-situ Fourier Transform Infrared (FTIR) Spectroscopy? What will FTIR spectroscopy even do for me? Well, we've got a chemical reactor. And inside our reactor, we've got a little reaction going on in here, and we just want to know what's really happening. We want to unlock the questions. For example, we might want to know, when does it end? We might even want to know; did it start? We might want to know, have I made what I thought I was making? www.mt.com/us/en/home/product...
    And inside our chemistry here, there are a couple of important things we might want to find out. The problem though is that traditionally to do that we need to take samples. So we need to find a way of getting the reaction mixture out so that we can deal with it and feed it to various analytical techniques. And it may be that our chemistry is very toxic, it may be under high temperature, it may be under pressure, and that's not always a straightforward thing to be able to do.
    There are a couple of different solutions and ways that we can be able to do this. METTLER TOLEDO EasySampler takes a sample, quenches at reaction conditions, and it helps you take that sample to Liquid Chromatography (LC), prepare it for Liquid Chromatography (LC), and of course, from there you can get your LC results. EasySampler is obviously very useful but the downside there is that you have to wait for the Liquid Chromatography (LC) results. www.mt.com/us/en/home/product...
    An alternative approach is to insert a ReactIR FTIR spectroscopy probe. And what ReactIR FTIR spectroscopy does in real-time is it takes spectra as a function of the time of the reaction chemistry itself. And quite simply you can peak profile these over a period of time because absorbance is a proportion of the concentration, and you end up with a set of reaction profiles.
    So, in this particular instance, as the reaction proceeds, you would get important questions answered. You would know in this instance: when does it start? When do my reactants begin to interact with each other? You would know when does the reaction stop? When do I have my final products? In actual fact you can even say in this instance my reaction maybe stops here and is therefore now's my time to take a confirmation sample.
    And the other thing we can do with ReactIR in-situ FTIR spectroscopy for example is we can tell, maybe there's a reactive intermediate inside my chemistry, So the actual chemistry might even be going via some other species and that would actually help us figure out exactly what's going on inside the chemistry.
    So, in a very, very simple way, in real-time, FTIR spectroscopy answers the key questions:
    When does it start? When does it stop? What's the mechanism? What do my kinetics look like?
    #ftir #irspectroscopy #fouriertransform #onlineFTIR #polymerization #hplc #insitu #inlineftir
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  • @MettlerToledoAC
    @MettlerToledoAC  Год назад +2

    Learn more about In-situ FTIR spectroscopy with ReactIR: bit.ly/3GHtcGe