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Magnesium XB LS (4×60ml) 240T
Magnesium ion forms a purple compound when it is complex with Xylidyl Blue in an alkaline solution. In the presence of EGTA which subtracts the calcium antagonist ions, the reaction is very specific. The intensity of the produced color, measured against a calibrator at 510 nm, is directly proportional to the magnesium concentration in the sample.
949.32 EGPMagnesium XB LS (4×60ml) 240T
949.32 EGPبوتاسيوم أحادي (2 × 40 مل) 80 ت
Potassium ions react with Sodium Tetraphenylborate giving rise to a stable turbidity whose optical absorbance, which can be measured photometrically at 578 nm, is proportional to the concentration of potassium in the sample under examination.
2,002.32 EGPبوتاسيوم أحادي (2 × 40 مل) 80 ت
2,002.32 EGP
