Research Article

Determination of Urinary Creatinine in Washington State Residents via Liquid Chromatography/Tandem Mass Spectrometry

Figure 1

Chromatogram of a WEBS participant urine sample showing the transition ions for creatinine and creatinine-d3: 114.0 to 44.1 (quantifier; (a)), 114.0 to 86.1 (qualifier; (b)), and 117.0 to 47.1 (creatinine-d3; (c)).
(a)
(b)
(c)