To completely remove all cations and anions from a solution, containing both inorganic salts and organic acids, should the strong or the weak anion column be placed first?
pH of start solution = 7; aim is to finish with a solution with neutral pH.
Research being conducted by Stellenbosch University would like your opinion about the effects of social exclusion on emerging urban mobility options and traditional public transport services. By...
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I will be administering 5-fluorouracil at a dosage of 50 mg/kg to mice as an I/P injection. Will someone please check my calculation? (Mw: 130.078 g/mol) Max volume to be administered to mice I/P...
23 June 2024 3,847 1 View
Dear Survey Experts, I am currently researching trust and resilience in the supply chain and seeking efficient ways to find survey respondents. In addition to social media and business...
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Hi! I have a question. I was looking into the research question: does mohs micrographic surgery give less recurrences and metastasis than standard excision in the treatment of cuteanous squamous...
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I have porous PMMA microparticles up to 1mm in diameter. I would like to functionalise the surface with amines whilst keeping the particles intact. Chat GTP has recommended ethanolamine or ATPES...
13 June 2024 7,977 1 View
Hi, I have been using a Q-Sonica Q500 Sonicator to disperse samples on nanocellulose and make emulsions. I have notices black dust like particulates settling out in some samples and on the bottom...
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I'm working on the RAFT copolymerization of MPC and NIPAm monomer, but I'm not sure how to calculate the total conversion from proton NMR? Is it an average of conversions of two monomers or just...
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Dear ResearchGate, I came across the ResearchGate page of Adri Jacobs, who passed away in 2010. This page contains 25 publication of Adri mainly from the period 2000-2008. One paper (2011) must...
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I am looking for resources in the Netherlands regarding cultural tourism. So what cultural activities correlate, and what lifestyles can be distinguished. Any resource is welcome, articles, factor...
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I've coated plastic water bottles (PET) with Nile Red to detect the plastic degradation by Ideonella sakaiensis. When using the settings for Sypro Ruby, the coated and uncoated plastic looks the...
23 May 2024 3,364 0 View
Approximate concentrations are require in compared with the WHO permissible limts
11 August 2024 2,723 1 View
Hey there, As a synthetic chemist delving into theoretical calculations for my imidazolium-based organic molecules, I would greatly appreciate any guidance on the appropriate input instructions...
09 August 2024 5,444 7 View
Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.
07 August 2024 8,782 3 View
Hello, I suspect that a molecule I am using is causing bacteria to experience osmotic shock. What chemical properties should I look for to compare this capability with those of other substances?...
06 August 2024 977 1 View
I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg. What is the solution?
02 August 2024 7,186 6 View
I'm trying to calculate the tolerance factors of the hydride perovskite and the value calculated by me and the reported values are contradictory. Need more clarity in using the correct ionic radii...
01 August 2024 2,614 1 View
I have used Prussian blue nanoparticles as a redox couple. The PBNPs have been made using only one salt precursor. Also, during scan rate studies, a small oxidation peak can be consistently found...
31 July 2024 9,697 0 View
Hi everyone, I'd like to better separate two close peaks coming from a bioconversion sample, I'm currently using a C18 KromaPhase 4,6mm Ø.I. SCHARLAU, particle size (µm): 10, pore size (Å): 100,...
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We are working on biopolymeric hydrogels. Our system is highly viscous and sticky, and the gel formed are high in strength. We are unable to use pH electrode and pH strip. Please suggest an easy...
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After deprotection of the tert-butyl ester to generate the carboxylic acid in chloroform with TFA, my compound‘s pyridine moiety forms a TFacetate ammonium salt (small molecule drug, not a...
29 July 2024 9,753 3 View