Each kit includes:
 
• Vials of dried, pre-mixed substrate and internal standard (qNMR quantified) for MS/MS enzyme assay of Arylsulfatase A (ARSA).
 
• The relevant Enzyme Assay Buffer.
 
• Gel filtration medium for size-exclusion chromatography (needed for ARSA Assay in DBS).
 
 
SKU: CS12 comes with a bottle of gel filtration medium.
SKU: CS12-PL comes with gel filtration medium pre-filled into fritted plates.
 
First order comes with qNMR quantified enzymatic product relevant to the ARSA enzyme assay, for mass spectrometry tuning and standard curve generation (See Absolute Quantification).
 
 
 
 
 
MLD Metachromatic Leukodystrophy