I have synthesised the silver nanoparticles by citrate reduction method.
How to find out the concentration (unit mg/ml) of silver nanoparticle, if it is dissolved in the solution.
Dear follow the link
https://www.researchgate.net/post/How_to_know_the_concentration_of_silver_nanoparticles_mediated_by_sodium_borohydride_and_1Mm_AgNO3_solution1
You can do some elemental analysis like ICP (Inductively Couples Plasma) or AAS (Atomic Absorption Spectroscopy) after centrifuging and precipitating the sample out.
Dear follow the link
https://www.researchgate.net/post/How_to_know_the_concentration_of_silver_nanoparticles_mediated_by_sodium_borohydride_and_1Mm_AgNO3_solution1
You confuse the terms. If the nanoparticles are distributed in the dispersant, then this is a dispersed system. If the concentration of nanoparticles, then it is necessary to determine the number of particles / ml. If the nanoparticles are dissolved, then they are in the form of ions. Concentration can be determined in units of mg / ml. This is not the concentration of silver nanoparticles, but the concentration of silver In the form of nanoparticles.
Best regards.
Yes that is true. But once the ion concentration of ions is known, TEM or HRTEM can be done to know the approximate size which can tell the concentration of nano particles.
Dear Yuri Mirgorod
Thank you for your informative reply. In our work, we also synthesised GO and Ag nanoparticles composite. But we are not able to separate it out at 9000 rpm from dissolved solution. So for the further studies, we need to calculate the concentration of silver in the form of nanoparticle and the composites in mg/ml. Can you please tell me how to calculate the concentration of Ag, GO and Ag nanocomposite in mg/ml.
Thank you.
Composite dry, weigh. Add nitric acid and dissolve silver. Filter the GO. Promote to a neutral pH on the filter. Dry, weigh. For the difference in solids, determine the concentration of GO and silver. Check the result. On the content of silver, using the reaction of its precipitation from the salt solution by action NaCl.
Best regards.
I recently determined the AgNP concentration using ICP-AES. Here is the article (it has detailed method). ICP-MS would give you much accurate results:
https://www.mdpi.com/1420-3049/24/1/98
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