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

<table>(a) Chromatograms of creatinine standard and creatinine-d<sub>3</sub>, disolved in water (total ion (top), creatinine standard (middle), and creatinine-d<sub>3</sub> (bottom)). (b) Chromatograms of creatinine and creatinine-d<sub>3</sub> in 2000-fold diluted urine samples (total ion (top), creatinine standard (middle), and creatinine-d<sub>3</sub> (bottom)).</table>

Journal of Analytical Methods in Chemistry

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Figure 2

Figure 2: LC-MS-MS Measurements of Urinary Creatinine and the Application of Creatinine Normalization Technique on Cotinine in Smokers’ 24 Hour Urine 

Figure 2 | LC-MS-MS Measurements of Urinary Creatinine and the Application of Creatinine Normalization Technique on Cotinine in Smokers’ 24 Hour Urine 