Product Name : MAGNESIUM Description : Xylidyl Blue with ATCS. Linear up to 5 mg/dL Sensitivity : 0.05 mg/dL Mode of Reaction : End point. Wavelength : 546 nm (520 – 550 nm) Blank : Reagent. Reagent Volume : 1000 µL Sample : Serum / Plasma / Urine . Sample volume : 10 µL