PerkinElmer’s NeoBase 2 MS/MS kit has now obtained CE mark approval allowing its distribution in Europe. The kit is intended for the semi-quantitative measurement and evaluation of amino acid, succinylacetone, free carnitine, acylcarnitine, nucleoside and lysophospholipid concentrations. The kit is used to analyse newborn heel prick blood samples dried on filter paper in association with a tandem mass spectrometer. The NeoBase 2 MS/MS kit can test for up to 57 analytes, including markers for screening of X-linked adrenoleukodystrophy (X-ALD), the most common peroxisomal disorder. It can also screen for adenosine deaminase severe combined immunodeficiency (ADA-SCID), which is caused by a deficiency of the enzyme ADA and is the second most common SCID. The kit enables a simple three-step assay workflow to be used from a single dried blood spot punch.