G005848
LC/MS/MS Analysis of DL-d-Hydroxyglutaric Acid Enantiomers on Astec® CHIROBIOTIC® R
application for HPLC
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About This Item
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technique(s)
HPLC: suitable
test parameters
column: CHIROBIOTIC R, 25 cm x 4.6 mm I.D., 5 μm particles (13024AST)
mobile phase: (A) ethanol:methanol (3:1, v:v); (B) 0.1% v/v TEA in water, adjusted to pH 4.5 with acetic acid; 75:25 (A:B)
flow rate: 0.4 mL/min
column temp.: 20 °C
detector: MS, ESI(-), 100-1000 m/z
injection: 5 μL
sample: each enantiomer, 100 μg/mL in water
suitability
application for HPLC
application(s)
clinical
forensics and toxicology
life science and biopharma
Analysis Note
Besides providing the necessary enantioselectivity, Astec® CHIROBIOTIC columns have the advantage of operating in aqueous and polar organic mobile phases that are amenable to polar drugs and metabolites. Their ionic interactions promote analyte ionization which enhances sensitivity in ESI detection. In addition to the CHIROBIOTIC columns, Sigma-Aldrich also provides the high purity mobile phase agents, racemic and pure chiral 2-OHG enantiomers and other compounds in the isocitrate dehydrogenase (IDH) pathway.
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