Increase of the LC–MS/MS sensitivity and detection limits using on-line sample preparation with large volume plasma injection

The effects of sample preparation methods on the variability of the electrospray ionization response for model drug compounds

Ryan P. Bonfiglio, Richard C. King, Timothy Olah et al. · Rapid Communications in Mass Spectrometry · 1999 · 922 citations

Pharmacy, Pharmaceutical Analysis, Pharmaceutics +10

Matrix Effect in Quantitative LC/MS/MS Analyses of Biological Fluids:  A Method for Determination of Finasteride in Human Plasma at Picogram Per Milliliter Concentrations

B.K. Matuszewski, M.L. Constanzer, C.M. Chavez-Eng · Analytical Chemistry · 1998 · 879 citations

Pharmacy, Pharmaceutical Analysis, Pharmacology +17

Ionization enhancement in atmospheric pressure chemical ionization and suppression in electrospray ionization between target drugs and stable‐isotope‐labeled internal standards in quantitative liquid chromatography/tandem mass spectrometry

Huakun Liang, R. L. Foltz, Patrick Bennett · Rapid Communications in Mass Spectrometry · 2003 · 250 citations

Pharmacy, Chemistry, Pharmaceutical Analysis +17

Evaluation of three calibration methods to compensate matrix effects in environmental analysis with LC-ESI-MS

Markus St�ber, Thorsten Reemtsma · Analytical and Bioanalytical Chemistry · 2004 · 221 citations

Natural Sciences, Environmental Sciences, Environmental Monitoring +13

Effect of liquid chromatography separation of complex matrices on liquid chromatography–tandem mass spectrometry signal suppression

Bernard K. Choi, David M. Hercules · Journal of Chromatography A · 2001 · 160 citations

Natural Sciences, Chemistry, Pharmaceutical Analysis +12