Відео

I'm so glad this information was helpful, Jeff! Feel free to reach out to us with any questions you may have (info@inorganicventures.com). If you're interested in more ICP-OES education, we just launched a new virtual ICP academy, IV Ignite. Access to the platform, provides you with self-paced video courses, downloadable resources including templates and tables, and regular live sessions with our instructors. Check it out: inorganicventures.learnupon.com/store We also hold in-person trainings, and we have two coming up in December in OH and IN! We'd love to have you join us. Learn more on our website: www.inorganicventures.com/

Thank you for your question. Are you observing more than one peak in a single spectral window? We do not advise use of spectral windows that are not clean unless the interference can be identified and corrected for. Peak centering will be important here to distinguish between two elements. Single-element solutions can also be used to determine interferences. We would recommend monitoring multiple wavelengths for each element, when possible, and choosing one that is free from interferences. Is the use of "peak" here in reference to wavelength? If so, the various wavelengths monitored should be consistent with each other and any discrepancies should be evaluated as potential interferences. Peak shape, relative standard deviation, and visual comparisons against a certified reference material with similar composition can all be used to help determine the best wavelength to use for your analysis. If you have additional questions specific to your analysis, please feel free to reach out to us directly at info@inorganicventures.com. We would be happy to take a look at your data and assist further, if needed.

Thank you for your inquiry. We do not prepare these types of samples in-house at Inorganic Ventures, but the best sample preparation technique will depend largely on your analytes of interest. Each sample type may require a different preparation procedure. Do you have the ability to perform microwave digestions in your laboratory? If so, we would recommend CEM’s catalogue of microwave digestion techniques that can be found here: cem.com/en/microwave-digestion. There should be a procedure available for each specific sample type you have mentioned. Of the elements you have listed, Hg may be of particular concern. We have observed that Hg can adsorb onto plastic at lower concentrations, which will result in loss of Hg in your sample. This can be mitigated by using HCl in your sample matrix or, in cases where only HNO3 is used for stabilization, storing your standards in borosilicate glass (but please note that low-level Hg can still adsorb onto plastic instrument components). More information on each element of interest can be found in our Interactive Periodic Table (www.inorganicventures.com/periodic-table). If you have additional questions or concerns, we would be more than happy to assist further. To speak with one of our chemists directly, please feel free to reach out to us at info@inorganicventures.com. We will be hosting a webinar on heavy metals analysis this Thursday, 11/11/2021. We will discuss topics that are directly related to your question and encourage you to attend! us02web.zoom.us/webinar/register/4116348448402/WN_lWxYXuC-Qa2JsU9OyUXI3g

Thank you for the support Henry! We love our home here in the NRV!

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Thanks for watching, Sadev!

So,osmium is reacting with nitric acid?Well,if so-it is a very bad fact because of it's impressive corrosion resistance and even more impressive mechanical properties-seems like oxygen is just it's kryptonite..But well,as I know,iridosmine is the best solution! By the way I am wondering how I can melt my osmium metal-without oxidizing it but also without using special vacuum arc furnace?Maybe you can tell me what to use as the flux which will be able to withstand such a temperature?

So can you please tell me what can I use as the flux for smelting osmium metal?Or it is not possible to smelt it without vacuum chamber?I mean without losing half of it's weight due to evaporation of it's oxide?

Allo.. Anyway I found already the answer to these questions but now I got another one!So as I know and seen myself,osmium is not dissolving in aqua regia even if in powdered form but here is what I just thought about after watching this video this time!Well,I sometimes used occasionally the mixture of HF and nitric acid which turned out to be very useful thing for some processes and I found it the best way to get platinum metal out of tungsten-platinum alloy on which it worked perfectly good but at the other processes it has obviously it's own limitations..For example I rather quickly found out that it is impossible to etch iridium metal even in sponge form with it,and so it's for example not an option for refining iridium metal from compact form,for example those tips of iridium spark plugs that always contain 85-90% iridium metal and the rest usually being mostly rhodium metal and various other precious and not that much precious impurities so it is useless for those..Actually the only way I could finally refine iridium metal from them was via inquartation with excess palladium and so just spongifying those tips and further leaching all impurities together with palladium in aqua regia but that's another story!So what I now thought about is actually whether it is possible to leach osmium metal or dissolve it in such a mixture?Just for example will 1 part of HNO3 68% mixed with 2 parts of 48% HF be able to get compact form of osmium metal to get into solution?And if yes-will this be actually effective or not?