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. Author manuscript; available in PMC: 2021 Jul 10.
Published in final edited form as: Sci Transl Med. 2021 Mar 10;13(584):eabb3945. doi: 10.1126/scitranslmed.abb3945
Autosampler LEAP (LEAP Technologies, Chapel Hill, NC) or Shimadzu SIL-20AC HT Prominence (Shimadzu, Columbia, MD)
HPLC pumps / Controller Shimadzu CBM-20A or SCL-10A VP controller with LC-10/20AD pump (Shimadzu, Columbia, MD) and Eppendorf CH-30 column heater.
Autosampler Temp Settings 5°C
Column Type DNAPac-PA-200, 4x250 mm, Part#: 063000
Vendor: Dionex, Cedar Rapids, IA
Column Temp Settings 60°C
Guard Column Frit, change as needed
Flow Rate 1 mL/min
Injection Volume 30 μL
Mobile phase A= 50:50 (1 mM EDTA in 25 mM Tis-HCl, pH 8.0): MeCN
B= 50:50 (1 mM EDTA and 1.6 M NaCLO4 in 25 mM Tris-HCl, pH 8.0): MeCN (v/v)
C= N/A
Needle Wash 1 = 50:50 (0.2% TEA and 0.02% EDTA in water): DMPF (v/v)
2 = 0.1% FA in water
LC Program Gradient
Typical Column Pressure 160 bar
Detector RF-20A xs fluorescence detector (Shimadzu, Columbia, MD)
Detector Temperature 20 °C