Пікірлер

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  @aprendeyemprende276711 сағат бұрын

  tengo 2 equipos pero estan en desuso, quisiera comunicarme con ustedes

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  @adeelanwar8199Ай бұрын

  taha bhai kya hal hai?

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  @DuyLe-x9fАй бұрын

  What is different between Size and Protein size indication?

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  @user-jr2nh9lr1uАй бұрын

  What about the tubes that are in between? If there's an organics in the solution, I assume there's going to be biofilms growing and mess up the data

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  @MalvernPanalyticalАй бұрын

  Thanks for your comment. Ensuring cleanliness of the system is certainly one important factor to getting the best quality data. Fortunately, it is very easy to keep your Mastersizer system measurement ready due to the ease of access it offers for cleaning. With respect to the tubing used for wet dispersion, this can be swapped out for new tubing as frequently as you see fit. But you shouldn’t need to do this often. If you are testing samples where biofilm growth might be an issue, cleaning of the system with a suitable solvent could be an option, especially as the Mastersizer demonstrates very good chemical compatibility. And don’t forget we have exciting software features like Data Quality Guidance to warn you of factors which could be impacting your measurement data.

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  @jomarcamu70572 ай бұрын

  Does it require for an extraction system to extract fumes during the fusion?

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  @MalvernPanalyticalАй бұрын

  Hi @jomarcamu7057, yes the Eagon requires an extraction system to remove the fumes. You can either sit it under a extraction hood or connect it directly to an extraction system using supplied extraction pipes.

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  @sriramprassu3 ай бұрын

  what is the difference in method parameters for 2000 and 3000 series. We have master sizer 2000 and we newly purchased Master sizer 3000. For that we need to develop our regular 2000 methods in 3000 model.

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  @MalvernPanalyticalАй бұрын

  Thanks for your comment. It’s great to hear that you have recently purchased a Mastersizer 3000! When it comes to transferring methods from the Mastersizer 2000 to the Mastersizer 3000, we have a lot of content on our website to help you. We would recommend the following technical notes and webinar as staring points. Technical Note 1: www.malvernpanalytical.com/en/learn/knowledge-center/technical-notes/tn130912transferingmethodsmastersizer Technical Note 2: www.malvernpanalytical.com/en/learn/knowledge-center/technical-notes/tn130515transfermethodstoms3000 Webinar: www.malvernpanalytical.com/en/learn/events-and-training/webinars/w221115epims3000

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  @2339091q3 ай бұрын

  Great vid.

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  @MalvernPanalytical3 ай бұрын

  Thank you

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  @triumphakpoyovwaire19294 ай бұрын

  I found this very helpful

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  @MalvernPanalytical4 ай бұрын

  Glad it helped

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  @youssefmessak69664 ай бұрын

  Bonjour Pouvez-vous m'aider par des articles concernants l'interprétation de ces courbes Merci énormement

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  @user-vf3mp5nn8l4 ай бұрын

  How do we measure carbon nanotubes particle size in suspension using Master sizer

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  @MalvernPanalytical4 ай бұрын

  Hi, do you mean Mastersizer? Mastersizer uses Laser Diffraction and the video you posted on is around Zetasizer, this uses Dynamic Light Scattering. Both techniques maybe useful in measuring CNT’s - dependent on their size range and agglomeration state. If you can clarify what system you have we can point you in the right direction.

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  @user-vf3mp5nn8l4 ай бұрын

  @@MalvernPanalytical Hi, we have Master sizer with EV and MV unit. CNT size is 9.5nm. I have a CNT water dispersion 200ml. Please advise what shall me sample volume and which technique I must use. Many thanks

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  @MalvernPanalytical4 ай бұрын

  @@user-vf3mp5nn8l Your expected size of 9.5 nm is below the 10 nm lower limit of the Mastersizer (laser diffraction), but this is well within the capabilities of the Zetasizer (dynamic light scattering). However, aggregation of the CNTs will likely mean you measure sizes larger than 9.5 nm and so the Mastersizer should still be relevant. We cannot advise on volume of sample to be tested as we do not know the concentration etc. Best practice for Mastersizer dictates that you should aim for an obscuration of no more than 5%. As these are small particles, there is a high likelihood of multiple scattering at higher obscuration levels. Try measuring at different obscuration ranges and determine where you see stable sizes versus obscuration - it’s within this range that you should be testing.

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  @user-vf3mp5nn8l4 ай бұрын

  @@MalvernPanalytical Many thanks for the reply. The concentration is 1%. please advise the volume of sample.

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  @MalvernPanalytical4 ай бұрын

  Hi @user-vf3mp5nn8l I would suggest to contact your local support for more advice.

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  @andreabeyer31874 ай бұрын

  If the lens and lines are cleaned, what else could be the most likely cause for a reading to fluctuate and not be within the specified obscuration range before the sample runs out? Thank you in advance..

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  @MalvernPanalytical4 ай бұрын

  Hi Andrea. Thanks for the question. Based on your comments, it sounds like you are running a dry analyses and observing a fluctuating obscuration reading during sample feeding. This could potentially be due to the feed rate not being optimised for your sample. You could look at investigating different feed rates to determine if you get a better response. If you are using the Aero S on Mastersizer 3000, the mesh basket and ball bearing aid could also help to pre-disperse any agglomerates in the hopper and smooth the flow in the hopper.

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  @andreabeyer31874 ай бұрын

  @@MalvernPanalytical Thank you for the response! Yes normally we would change the feed rate to experiment, we actually had it set pretty high-70% with the maximum hopper gap; but we were somewhat bound to following the exact procedure. I wound up decreasing the stabilization time from 0.5 to 0.1 or 0.2 secs before reading occurs and it worked great! 👍🏼

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  @MalvernPanalytical4 ай бұрын

  Hi @andreabeyer3187 , we’re really pleased to hear that you have found a route forwards. Happy particle sizing!

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  @kongamanasa26955 ай бұрын

  Thank you so much

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  @MalvernPanalytical4 ай бұрын

  You're most welcome

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  @niesnerful5 ай бұрын

  Well, and now lets find out how to cite a yt video to my final thesis :D :D

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  @MalvernPanalytical5 ай бұрын

  Thanks for your comment! We're thrilled you enjoyed the video! 😄 For citing KZread videos in your final thesis, consider following the guidelines provided by your academic institution or referencing style (like APA, MLA). Best of luck with your thesis! 📚✨

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  @karahood97066 ай бұрын

  BEST explanation of DLS, definition of autocorrelation, and how hydrodynamic radius is calculated.

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  @MalvernPanalytical6 ай бұрын

  Thanks for your comment! We’re glad you found our video helpful. Let us know if you have any other questions or comments.

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  @tomplayford47947 ай бұрын

  cheers mate, this video was actually really helpful. Much better explanation than my Oxford professors lol

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  @MalvernPanalytical7 ай бұрын

  Thank you for your kind words! We’re glad to hear that our video was helpful. We hope you continue to find our content informative and engaging. 😊

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  @santoshpatil43548 ай бұрын

  Matersizer analyser is based on mie theory. Mie theory compertable only with spherical particle, however mastersizer analyser analyse non spherical particle also. How it is possible and whats the accuracy of results??

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  @MalvernPanalytical4 ай бұрын

  Hi @santoshpatil4354, laser diffraction is ideally suited to spheres / spheroidal, or slightly irregular materials. It will handle most shapes however. Most particles will randomly move in relation to the laser, so we get a volume based response based on the orientation the particles present. You will get an equivalent sphere with the same volume as the particle. This however can lead to issues if there is any flow alignment occurring. This can often occur with very acicular materials, there it is possible to get 3 peaks, one from the width, one from the length and one in between based on those which are spinning and exposing all the dimensions

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  @sathvikbhat35299 ай бұрын

  The autocorrelation is well explained, it was tough to understand before. Thanks.

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  @MalvernPanalytical9 ай бұрын

  Thank you very much Sathvik

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  @AliRaza-wp8tr10 ай бұрын

  What is the benefit of aero sample feeder

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  @MalvernPanalytical10 ай бұрын

  Thank you AliRaza for your inquiry. The Aero Funnel sample feeder allows for larger sample masses to be added to the Aero S and Aero M dispersion units without needing to open the dispersion unit lid. Measurements are quicker as a result, and the larger sample mass ensures users achieve good material sampling and more reproducible results. It is an excellent solution for coarse samples, such as coffee, or cohesive powders, such as calcium carbonate. For information, see our website: www.malvernpanalytical.com/en/products/product-range/mastersizer-range/mastersizer-3000/accessories/aero-funnel-sample-feeder

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  @nevzatalperdinc340111 ай бұрын

  Great video! How does the instrument calculate the translational diffusion coefficient?

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  @MalvernPanalytical11 ай бұрын

  Thanks for your comments and we are pleased you liked the video. The diffusion coefficient is obtained from the relation Γ=D t q 2 where q is the scattering vector, given by q=(4πn/λ0)sin(θ/2). A fuller explanation can be found here - www.malvernpanalytical.com/en/learn/knowledge-center/technical-notes/tn101104dynamiclightscatteringintroduction

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  @a19971997199711 ай бұрын

  Studying for a phd. This video did wonders, thank you

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  @MalvernPanalytical11 ай бұрын

  Glad it was helpful!

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  @oumouhawabarry228711 ай бұрын

  How to contact you I want to know more about this machine

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  @MalvernPanalytical11 ай бұрын

  You can follow this link and contact our sales for more information: www.malvernpanalytical.com/en/products/category/automation-solutions

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  @vijaykumar-tm2xt Жыл бұрын

  hi,can we check the ointment also

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  @user-oh5hm1jb2f Жыл бұрын

  @Malvern Panalytical I wanna load the size distribution results into Excel. How can I do

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  @adityapatel8156 Жыл бұрын

  Why we do not obtain a zeta potential distribution peak charge measurement? Instead of having desired charge of sample & good quality results? Can you explain?

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  @yahyamukhlisbm2923 Жыл бұрын

  @Malvern there is no copy the data option for Zeta potential distribution. So how can reproduce the data in Excel?

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  @rileylawson9958 Жыл бұрын

  If enzymes are reusable, why would the ligand ever be saturated after the reaction equals equilibrium? Wouldn't the new product be relased and the previously-used enzymes would be available again?

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  @tapaspal3921 Жыл бұрын

  how the autocorrelation function being fitted by non negative least square method or cumulant analysis method ? please respond

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  @MalvernPanalytical Жыл бұрын

  Hi Tapas Pal, size is obtained from the correlation function by using various algorithms. There are two approaches that can be taken (1) cumulants determines the mean size (z-average diameter) and an estimate of the width of the distribution (polydispersity index) and is defined in ISO22412 (2018)) (2) a multiple exponential fit of the correlation function to obtain the distribution of particle sizes. There are various distribution algorithms available such as non-negative least squares (General Purpose or Multiple Narrow Modes or L-Curve). www.malvernpanalytical.com/en/learn/knowledge-center/faqs/FAQ160705CumulantsNNLS Hope this helps.

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  @ismaildaoud6383 Жыл бұрын

  hi I have a mastersizer 2000 and i want to know how to clean the liquid cell please

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  @MalvernPanalytical Жыл бұрын

  Hi Ismail, if you could contact our specialist via this form that would be great: www.malvernpanalytical.com/en/about-us/contact

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  @user-ti3fi9hw2l Жыл бұрын

  The background music is insanely distracting imo. Destroys an otherwise very well done introduction.

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  @MalvernPanalytical Жыл бұрын

  Thank you for your feedback! We appreciate your honesty and understand that the background music may not be to everyone's taste. We'll take your comment into consideration for future videos and do our best to strike a better balance between the music and the narration so that it enhances rather than detracts from the viewing experience.

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  @youwilllaugh3136 Жыл бұрын

  hi i cant change the anode type its grayed out

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  @MalvernPanalytical Жыл бұрын

  Thanks for your question. We assume that you are referring to the Document Wavelength in the Document Settings dialog. If that is the case, be aware that this is editable only in case there is NO Scan loaded. In case measurement data is present, the Anode material is selected/edited in the Object Inspector per Scan/dataset.

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  @S3IIL3CT Жыл бұрын

  really good video but what is that music xD

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  @MalvernPanalytical Жыл бұрын

  Thank you for watching! The music was chosen to match the video's tone. We're sorry if it wasn't to your liking, but we hope it didn't affect your enjoyment. We're open to suggestions for future videos. Thanks again!

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  @S3IIL3CT Жыл бұрын

  @@MalvernPanalytical It was a great informative video. The main issue was the music being a bit loud, so focussing on the voice explaining was a little difficult for me.

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  @agaramnarendrababu4965 Жыл бұрын

  Hi sir psd analysis time iam observed the main peak and unknown peak is coming any precautions to take please tell me sir

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  @sayeedm9655 Жыл бұрын

  Is it possible to customize data acquisition time

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  @MalvernPanalytical Жыл бұрын

  Hi Sayeed, we can freely set the measurement duration and the number of runs as part of the Standard Operating Procedure. Hope this helps?

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  @ChemistrySpace Жыл бұрын

  Nice lecture 👍👍

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  @MalvernPanalytical Жыл бұрын

  Thanks and welcome

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  @ashwinganapathy223 Жыл бұрын

  What is MuliCore optics? Are iCore and dCore, X-Ray transmitter, and detector respectively?

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  @MalvernPanalytical Жыл бұрын

  Hi Ashwin, thank you for your question. The Multicore optics only consists of the iCore (incident beam optics) and dCore (diffracted beam optics). Hope this answers your question.

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  @ashwinganapathy223 Жыл бұрын

  @@MalvernPanalytical So where are the detectors and X-Ray generators located?

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  @MalvernPanalytical Жыл бұрын

  Hi Ashwin, The MultiCore represents the incident beam optic iCore and the diffracted beam optic dCore. As of the detector, we have the choice between 1Der or PIXcel for the dCore. The detector is positioned behind the dCore optics as for the X-Ray tube, that is situated in front of the iCore. Hope this helps.

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  @ashwinganapathy223 Жыл бұрын

  @@MalvernPanalytical Thanks for the info!!

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  @paramasivan7970 Жыл бұрын

  Perfect

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  @MalvernPanalytical Жыл бұрын

  Thank you Parama Sivan

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  @bhavishapatel8510 Жыл бұрын

  Was looking for such a descriptive video from a very long time

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  @MalvernPanalytical Жыл бұрын

  Glad you liked it

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  @user-gx1ss9yv8x Жыл бұрын

  ممتاز

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  @MalvernPanalytical Жыл бұрын

  Thank you Ahmed

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  @abhisheknavale1121 Жыл бұрын

  Can get the method to measure the particle size analysis of chocolate

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  @MalvernPanalytical Жыл бұрын

  Hi Abhishek, to measure the PSD of chocolate you need to disperse it in some kind of oil. Many oils are used - Akomed R, Sunflower oil, Isopar G. A fresh production sample (semi molten) will disperse into the oil with a little shaking, a solid chocolate will probably need some ultrasound. This will result in a chocolate / oil mix which can be added to a Mastersizer wet tank circulating clean oil for measurement. For analysis optical properties the industry tends to use the Fraunhofer model which is an option in our software. Hope this helps.

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  @DasunKottage Жыл бұрын

  We used both 3000E & Manual analysis from Air jet sieve machine. But results are different..Why..?

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  @MalvernPanalytical Жыл бұрын

  Thank you Dasun for your question. There are several reasons you may get seeming different answers from different particle sizing techniques such as laser diffraction and sieving. Notably they will be measuring different properties of the particles. You can find out more by visiting our website, search on Mastersizer masterclass. Or feel free to contact your local representative www.malvernpanalytical.com/en/about-us/contact-us/

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  @bakhodirjonkakhkharov344 Жыл бұрын

  Great explanation and graphics. Thank you!

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  @MalvernPanalytical Жыл бұрын

  You're very welcome!

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  @okellomorris694 Жыл бұрын

  thanks your explanations are exceptional.

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  @MalvernPanalytical Жыл бұрын

  You are welcome!

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  @EduardoSantos-fr9xn Жыл бұрын

  I have an script that with each analysis show the results on a excel sheet, but i also have a problem with that, this excel that the software is making by the scrip, has a file extension of .out, this is causing me problems in the way that access can’t read .out files. Is there a way to change the .out for .xlsx?

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  @MalvernPanalytical Жыл бұрын

  Hi Eduardo, please contact your local sales team or office, or reach out to us via linkedin.

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  @Lina-ob9ug Жыл бұрын

  can u do a video about SLS too plz

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  @MalvernPanalytical Жыл бұрын

  Thank you Lina, we will take that into account.

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  @LearnValue Жыл бұрын

  Should we acquire spectra in 2x/5x/50x for best result?

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  @MalvernPanalytical Жыл бұрын

  Hello, Thanks for your question. As is often the case it depends on the application and the sample! If you are running an automated measurement the 50x that will be used for the Ramana part of the analysis. In this case you select the objective most suited for the Morphological part of the analysis and the system will automatically switch to the 50x to acquire each spectrum. In our support materials there is guidance around which objective to select if you will be performing a full MDRS analysis depending on the particle size. If you are using the system in manual mode then it is possible to acquire a spectrum using other objectives, and which you choose will depend on the sample eg particle size and scattering efficiency. Please do reach out to your local Malvern Panalytical support for further guidance or training. I hope this helps you with your MDRS application.

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  @LearnValue Жыл бұрын

  @@MalvernPanalytical this info will helpful to us. We have separated particle which is very small in amount,we are getting spectra of backgroung not the single particle.any reason..

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  @MalvernPanalytical Жыл бұрын

  There are various reasons that may lead to you not getting a good spectrum from your particle. It may be related to the particle size and/or the scattering efficiency of the material. Some materials are not Raman active. The spot size of the Raman beam is ~2um. If the particles of interest are smaller than this and/or are weak scatters then you can try extending the acquisition time. You can also consider applying a background correction. The parameters to use can be very application and sample specific. Your local support team will be happy to advise how they can offer more guidance on your specific application. Find your local team here www.malvernpanalytical.com/en/about-us/contact-us

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  @LearnValue Жыл бұрын

  @@MalvernPanalytical thanks will try background correction

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  @elormoboteyezugbe3159 Жыл бұрын

  Great content👍

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  @MalvernPanalytical Жыл бұрын

  Thank you 🙌

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  @dineshmule6986 Жыл бұрын

  Thank you :)

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  @MalvernPanalytical Жыл бұрын

  You're welcome!

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  @mdruhulamin22552 жыл бұрын

  How can I measure the zeta potential of C-18 particles in water? C-18 particles do not form good suspension in water and methanol and form sediment.

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  @MalvernPanalytical2 жыл бұрын

  Thank you for your question Ruhul Amin, C-18 particles are likely hydrophobic and hence will probably need some aid in bringing into a suspension with the use of suitable surfactants or a move to an organic dispersion medium. I’m sorry but we can’t answer to any great depth here or without knowing more about the samples and purpose. We would advise you to contact you local MP technical centre for more application specific advice.

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  @karlasuarez6712 жыл бұрын

  En la ciudad de México, quién tiene este tipo de equipos?

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  @vinzky892 жыл бұрын

  Thank you.

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  @MalvernPanalytical2 жыл бұрын

  You're welcome!