I have my data in excel. I want to determine the sources of the polycyclic aromatic hydrocarbons PAHs I analysed. Can somebody put me through step by step, please?
Abdulmumeen Abdulkadir PCA will show the positive or negative correlations and correlation strength of observed variables. To find out the sources of PAHs, you may need to run samples in GS-MS or ICP-MS.
It is better if you use the normalized or standardized PAH concentrations as input for PCA. To know how to run PCA in SPSS, you can check this link https://www.youtube.com/watch?v=qu4la8K212M.
I would recommend to perform PCA either in Minitab or PAST as they are quite easy to operate
They show that the frequency of PAH measurements can be reduced (preferably to ... Particle size distribution C63µm in % (Grain Size Analysis GSA). ... The Scheldt is the main input source of contaminants in Belgian coastal waters.
You need to normalise the concentration data before running PCA. Then, you may see some compounds will have clustered with other compounds. It is advisable to read more about PAHs sources and origin to help the interpretation part.
Hope this helps to answer your question.
- Badges
- Science topic
- Similar topics
- Linguistics
- Composition Studies
- Publication