New liquid chromatography tandem mass spectrometry method for quality control of nitrosamine impurities (NDMA, NDEA, AND NMBA) in some pharmaceutical products (valsartan, irbesartan, losartan, candesartan, and telmisartan tablets)
New liquid chromatography tandem mass spectrometry method for quality control of nitrosamine impurities (NDMA, NDEA, ...