Looking for help with interpretation of FTIR transmission plot

AI Thread Summary
The discussion centers on the analysis of an oil sample that showed contamination with an unspecified element, identified by two different labs using transmission FTIR and absorption FTIR methods. There is confusion regarding the interpretation of the FTIR plots, as one participant notes that FTIR techniques do not directly analyze elements. The thread has been moved due to concerns that the inquiry resembles a homework question. Participants are encouraged to share insights on identifying contamination peaks in the provided FTIR plot. The conversation highlights the challenges in comparing results from different FTIR methodologies.
CambridgeMart
Messages
4
Reaction score
2
I've had an oil sample analysed by 2 separate labs; one of the labs came back with the analysis stating large amount of contamination with element X (sorry, I won't prejudice any responses with the element name for now). Unfortunately one lab used transmission FTIR and the other used absorbtion FTIR, so I personally can't equate the traces. Is anyone prepared to have a glance at the plot (poor copy unfortunately) below and ID the major contamination peaks (i.e. something you shouldn't normally find in an ester based oil?
TIA.

1630103907181.png
 
Physics news on Phys.org
CambridgeMart said:
contamination with element X
Something doesn't sound right, IR/FTIR doesn't deal with elements.

This is a bit homeworkish so I am moving the thread.
 
Thread 'Confusion regarding a chemical kinetics problem'
TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
I don't get how to argue it. i can prove: evolution is the ability to adapt, whether it's progression or regression from some point of view, so if evolution is not constant then animal generations couldn`t stay alive for a big amount of time because when climate is changing this generations die. but they dont. so evolution is constant. but its not an argument, right? how to fing arguments when i only prove it.. analytically, i guess it called that (this is indirectly related to biology, im...

Similar threads

Replies
7
Views
3K
Replies
9
Views
3K
Back
Top