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Journal of Analytical Methods in Chemistry
Volume 2012 (2012), Article ID 245415, 8 pages
http://dx.doi.org/10.1155/2012/245415
Research Article

LC-MS-MS Measurements of Urinary Creatinine and the Application of Creatinine Normalization Technique on Cotinine in Smokers’ 24 Hour Urine

1China National Tobacco Quality Supervision and Test Center, Zhengzhou 450001, China
2Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China

Received 14 February 2012; Revised 29 August 2012; Accepted 31 August 2012

Academic Editor: Josep Esteve-Romero

Copyright © 2012 Hongwei Hou et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Supplementary Material

In the Supplementary Material, LC-MS/MS method for cotinine, enzymatic colorimetric method for creatinine, original data for LC-MS-MS and enzymatic colorimetric methods comparison and original data for the application of creatinine normalization technique on cotinine were supported.

  1. Supplementary Material