Gahl WA, Kuehl EM, Iwata F, Lindblad A, Kaiser-Kupfer MI (2000) Corneal crystals in nephropathic cystinosis: natural history and treatment with cysteamine eyedrops
acnes under control
Samples were run on either a SeQuant ZIC-pHILIC LC column, 5 m, 150 4.6 mm (MilliporeSigma, Burlington, MA) with a SeQuant ZIC-pHILIC guard column, 20 4.6 mm (MilliporeSigma, Burlington, MA) or an Atlantis Premier BEH Z-HILIC VanGuard FIT column, 2.5 m, 2.1 mm 150 mm (Waters, Milford, MA)
Springer Nature Singapore, Singapore, pp 5173
Level 1: identification by retention times (compared against in-house authentic standards), accurate mass (with an accepted deviation of 3 ppm), and MS/MS spectra, Level 2a: identification by retention times (compared against in-house authentic standards), accurate mass (with an accepted deviation of 3 ppm)