Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2011 Oct 5;401(10):3045–3067. doi: 10.1007/s00216-011-5355-y

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© The Author(s) 2011

This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

PMC Copyright notice

Fig. 5 — Summary of key diagnostic plots of the PMF results for an HR-ToF-AMS dataset acquired in New York in 2009 (the PMF results are given in Fig. 2): (a) Q/Q _exp as a function of number of factors (P) selected for PMF modeling. For the five-factor solution (i.e., the best P): (b) Q/Q _exp as a function of FPEAK, (c) fractions of OA factors vs. FPEAK, (d) correlations among PMF factors, (e) the box and whiskers plot showing the distributions of scaled residuals for each m/z, (f) time series of the measured organic mass and the reconstructed organic mass (= LV-OOA + SV-OOA + NOA + COA + HOA), (g) variations of the residual (= measured − reconstructed) of the fit, (h) the Q/Q _exp for each point in time, and (i) the Q/Q _exp values for each m/z. (Adapted from Ref. [39])