I want simple qualitative methods to evaluate the evaporation of volatile solvents from a solution.
For example, if I have DCM in a solution and I am evaporating it, how can I know that after one hour if it is completely evaporated from solution?
Simple way weighting or observing the constant weight on the balance. Or using the headspace technique e.g. SPME and determine by GC
There is huge pressure of getting good impact factor on scholars now a days. On the other hand Taxonomy is a very dry subject and the concerned papers can only get citation in same group of organism.
26 February 2021 5,851 1 View
Greetings, I want to make SDS PAGE for my sample (Tick salivery gland extract), I tried concentrations 10%, 12%. I also tried high molecular weight ladder. But the protein stopped at the top and...
25 February 2021 7,698 3 View
Using GDB, it is straightforward to debug and monitor a target program by setting a break-point at a specific instruction, since the instruction addresses are known. However, we have two...
24 February 2021 1,598 2 View
Peat possess organic content above 75% and is highly acidic in nature (i.e. pH < 4). Before commencing stabilization, it is mandatory to know about the pH level of peat. Therefore, your...
18 February 2021 9,424 7 View
I wanted to calculate the probability of one consumer shifting from using a petroleum-fueled vehicle to an electric vehicle. Since my background is in engineering I do not know much about how to...
15 February 2021 9,190 5 View
Hello everyone, I just started learning IHC staining and I have some frozen sections to practice with in a 96-well plate. I'm having trouble mounting the sections on the slide, a colleague told me...
08 February 2021 6,880 3 View
Hello everyone. I was trying to use Image Lab software to take an image of both the ladder and the samples merged together in one image to see the position of the bands according to the ladder MW,...
04 February 2021 9,996 2 View
Hi, I am working on a problem that involves multiple smartphones/tablets. All devices are playing the same sound with synchronization difference up to +- 5ms. Now, there is an echo issue and I...
02 February 2021 5,929 3 View
Can I use the result from a pilot study to decide the minimum sample size required to compare the means using independent sample t-test ? Or any other way that can help me to determine the...
29 January 2021 7,677 6 View
So I'm new to lab research and learning Western Blots these days. I ordered my secondary antibody and it arrived in a powdered form. Here is the...
27 January 2021 5,402 3 View
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03 March 2021 7,540 4 View
dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...
03 March 2021 6,994 5 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
The resultant solid was partitioned three times with 250 ml of petroleum ether (40-60/c) to remove any fatty material and evaporated to dryness.
28 February 2021 9,464 2 View
Favourable conditions of base pressure, rate of deposition. Also, by which characterisation technique to be used to verify the thickness of the deposited film.
28 February 2021 3,640 3 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