Figure 1From: An inter-laboratory comparison of urinary 3-hydroxypropylmercapturic acid measurement demonstrates good reproducibility between laboratoriesChemical structure of acrolein ( A ), 3-HPMA ( B ), and 3-HPMA-13C 3 -15N ( C ). 3-HPMA and 3-HPMA-13C3-15N molecular weights are also indicated.Back to article page