%0 Journal Article %K Impurity profiling %K LC–MS/HRMS %K Nitrosamines %K Rifampicin %K Risk Assessment %B Journal of pharmaceutical and biomedical analysis %D 2021 %G eng %P 114205 %R 10.1016/j.jpba.2021.114205 %T The nitrosamine contamination of drugs, part 3: Quantification of 4-Methyl-1-nitrosopiperazine in rifampicin capsules by LC-MS/HRMS. %V 203 %1 https://www.ncbi.nlm.nih.gov/pubmed/34130010 %8 06/2021