Questions tagged [extraction]
For questions regarding the separation process consisting in the separation of a substance from a matrix. This tag can be used for generic extraction of elements from ore or more specific types of extraction such as: liquid-liquid extraction, and solid phase extraction.
208 questions
-1
votes
1
answer
44
views
Extracting phosphates from burned bones for hydroponic solution
Is there an easy way to extract phosphates from bone ash (mainly burned chicken bones) to use in hydroponics? Something that can be performed at home and preferably should be soluble in water... Using ...
- 209
1
vote
1
answer
71
views
Feasibility of extracting odor-related compounds from heated watermelon and tomato without GC–MS or a rotary evaporator [duplicate]
I am a high school student working on a research project about odor formation from heated fruits, especially watermelon and tomato.
Based on previous discussions and literature, it seems that heating ...
- 41
2
votes
1
answer
78
views
Quantifying thermal degradation of carotenoids in watermelon by UV–Vis and feasibility of extracting natural aroma compounds
Research context (summary):
I am conducting a small-scale experimental study aimed at developing a simple, laboratory-accessible method for producing natural aroma extracts from watermelon. The ...
- 41
3
votes
1
answer
86
views
Quantify liquid–liquid extraction methods speed
I'm trying to gain some insight into the speed of liquid-liquid extraction. I'm having a polar solvent A and a non-polar solvent B. Solvents A and B have a different density, so if mixed and left to ...
- 131
2
votes
0
answers
64
views
Rapid 96-Well Plate-Based Relative Quantification Method for Coenzyme Q10 (for Preliminary Screening of Q10-Producing Strains)
I am currently screening a large number of microbial fermentation broth samples to identify strains with higher coenzyme Q10 (CoQ10) production. The goal is to find a fast, simple, and high-throughput ...
- 29
3
votes
0
answers
62
views
Gelling of an Organic Layer During Separation
Earlier I was doing extraction of cinnamaldehyde by steam distillation and the weirdest thing happened when I tried to separate my organic layer from my aqueous layer. My organic layer turned into a ...
- 31
3
votes
1
answer
166
views
Does Decomposing Iodoform Really Give Elemental Carbon?
I was reading my school textbook and under the section Iodoform it said:
On heating, iodoform decomposes to give iodine vapor. Presence of air, moisture and light also cause the decomposition of ...
- 381
0
votes
0
answers
130
views
Do HDPE flakes need to be cleaned?
I am participating in a competition to identify new markets and/or process changes for recycling HDPE oil containers. About 80% of these containers are blow-molded, while the remaining 20% are ...
- 129
1
vote
0
answers
49
views
Is is a problem to fractionate a plant extract containing plastic?
I made a huge mistake when preparing a leaf extract. I had Frozen leaves and I try to crush on a blender before putting the solvent. It was a little hard to crush and I put a little bit of solvent (...
1
vote
0
answers
71
views
Is it possible to remove caffeine from brewed coffee?
I'm testing how the coffee brewing method influences its caffeine content. I had originally thought about using ethyl acetate, methylene chloride, or Swiss water processing to remove the caffeine, but ...
- 21
1
vote
2
answers
279
views
How to maximize yield of caffeine extracted from tea with water?
I am doing a report on extraction of caffeine for my O-chem finals and I am confused whether to use freshly plucked tea leaves or dried tea leaves for the extraction. I want to yield the maximum ...
0
votes
1
answer
501
views
Polarity of caffeine [closed]
I have to submit an investigatory project for my Ochem exams and I chose to write up a report on quantitative analysis of caffeine in different tea samples. During Extraction of caffeine, we use ...
3
votes
0
answers
129
views
TsOH and 5% NaHCO3 Interaction: Unexpected Dark Green Color
Here's the brief:
I synthesized alkyl gallates (ethyl gallate, butyl gallate, and amyl gallate) using Fischer esterification.
I used TsOH instead of concentrated H2SO4 as the catalyst.
After ...
- 157
1
vote
0
answers
107
views
Can I make an alcohol-based stain from a pigment with an alkaline extraction process?
I'm in a situation where I don't really even know enough to know if what I want makes sense or has the kinds of problems that I think it might have, but here's the situation:
I would like to make a ...
- 21
0
votes
1
answer
544
views
How feasible is it to separate acetone, butanol, and ethanol (and water) via simple distillation?
I have no experience distilling, though I understand the basics about it. When two liquids with different boiling points are mixed, you can sometimes separate them by boiling away one of the liquids, ...
- 109