As both 4-nitrobiphenyl and 4-nitrobromobenzene has same polarity and both has a same Rf value in hexane and any other solvent, how can i separate? kindly help.
Hi, i am conducting a Monte Carlo simulation for my new distribution but the MSE values are increasing while the sample size increase, does any experience this issue before and what should i do...
22 February 2021 3,680 4 View
the samples are not completely soluble - just swelled the solvents that's mean the sample may be partially soluble any suggestion, please
16 February 2021 8,801 3 View
can any one suggest me other than classification, how deep learning technique can be used in plant disease detection in rice plant? could a research work continued from fungal,bacterial...
07 February 2021 470 2 View
There are a few papers dealing with the effects of climate change on the pollination of European orchids, but I wonder if similar studies have been carried out in the Tropics.
04 February 2021 1,818 4 View
Dear all, I am currently writing my master thesis where I am analysizing my data using path analysis and SEM in R (lavaan package). Now that I like to write up my results, I am struggling with...
04 February 2021 8,993 2 View
Dear Researchers, In Textile Reinforced Concrete is a novel construction material consisting of a cementitious binder and a textile reinforcement. Without using a course aggregate why the topic...
24 January 2021 2,654 9 View
Shouldn't every individual who takes COVID-19 vaccination undergo periodic review to the study the state of corresponding antibodies? Individuals who do not produce any symptoms of COVID-19 after...
23 January 2021 6,170 2 View
Dear colleagues: I have been trying to establish a few HP-TLC methods in the lab. In general, for quantification purposes, I prefer CuSO4+acid charring, to primuline staining. Lately I have been...
20 January 2021 9,019 1 View
I need to simulate a mushroom FSS and I'm struggling with the ports. What's the correct way to define them? Should I construct a proper SMA connectors, or is it enough to put a waveguide ports...
19 January 2021 6,590 4 View
I have a xrd pattern, in that i suspect that one of the peak may be due to SL, i want to understand how to confirm it or reject it
07 January 2021 5,534 3 View
I am making polymer composite by solvent mixing method. When I am trying to add filler solution in polymer solution it quickly get solidified. How to make them then uinform? It doesn't give time...
03 March 2021 7,540 4 View
I am try to make the Paal Knorr reaction between 2.5 hexnedione and 6-amino hexanoic acid, my problem is type of solvent to use, because 6-hexaminohexanoic acid is soluble in water but I am not...
02 March 2021 4,443 2 View
I want to polymerize TEOS on a surface. I know that NH4OH is a preferred catalyst and an alcoholic solvent should be used .But I can not find certain amounts of each material to use. Does any one...
02 March 2021 1,404 6 View
I need a procedure to extract the ciprofloxacin hydrochloride from aqueous solution by using dichloromethane in detail,. I thank you very much.
01 March 2021 4,306 1 View
I am currently doing my third year design project. I have been assigned to design a glycerol recovery column in vinyl acetate monomer production. The process unit before the recovery column is an...
01 March 2021 9,525 4 View
28 February 2021 8,466 2 View
The reaction of APTES with salicylaldehyde in ethanol leads to the formation of imine compound yellow solid which is mention in literature, but I am not getting yellow solid I don't know why? when...
28 February 2021 2,955 2 View
there are solvents and alcohol in the waste water of a factory that produces disinfectants. Increasing this waste water requires very serious operations. Can I treat this waste water with...
27 February 2021 2,609 3 View
I had a crystal hit in a well with 0.1M HEPEs pH 7.5, 10%(w/v) PEG 4000, and 20%(w/v) isopropanol. Why is isopropanol in w/v here if it's just solvent? How do I recreate this well condition?
25 February 2021 9,761 1 View
I am working with Polyacrylic acid (100.000Da) and instead of water, I need to use another solvent (dioxane) to dissolve PAA. However, because of the high molecular weight, it's quite hard to...
25 February 2021 2,225 5 View