Skip to main content

Holiday schedule

Quest Diagnostics Patient Service Centers will have modified hours during the holiday season.

  • Closing early at 12:00pm on December 24, 2025
  • Closed on December 25, 2025
  • Closing early at 12:00pm on December 31, 2025
  • Closed on January 1, 2026


Have a healthy, happy holiday!

Hide

Critical Need to Assess Modified and Un-modified Peptides in C-Peptide Standard Materials

Critical need to assess modified and un-modified peptides in C-peptide standard materials

Authors: Wu Z, Kabytaev K, Mu J, Connolly S, Clarke NJ, Little R, McPhaul MJ

J Mass Spectrom Adv Clin Lab. 2022 Jul 22;26:7-8. doi: 10.1016/j.jmsacl.2022.07.003. eCollection 2022 Nov.

Specialties: Cardiology, Endocrinology