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Lithocholic acid, 50 ug/mL,
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L-042
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50 ug/mL in Methanol
This Certified Spiking Solution® is suitable for use as starting material in the preparation of linearity standards, calibrators, and controls in LC-MS/MS and GC/MS bile acid testing methods. Lithocholic acid (LCA) is a bile acid that acts as a detergent to solubilize fats for absorption in the intestine. Mass spectrometry-based analysis of LCA is routinely performed in clinical diagnostic testing applications including neonatal testing of inborn errors of bile acid synthesis and differentiating among types of familial intrahepatic cholestasis.
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Ursodeoxycholic acid-D4,
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U-002
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100 ug/mL in Methanol
A stable-labeled internal standard suitable for quantitation of ursodeoxycholic acid (UDCA) levels by LC/MS or GC/MS for clinical diagnostic testing applications such as screening for inborn errors of metabolism or monitoring bile acid therapy. Ursodeoxycholic acid (UDCA) is a secondary bile acid that helps regulate cholesterol.
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