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Calcium (Ca)

Calcium E-HAFor In Vitro Diagnostic Use

Intended Use

Calcium E-HA is an in vitro assay for the quantitative determination of calcium in serum, plasma or urine.

Method

Methylxylenol blue (MXB) method

Special Characteristics

Calcium E-HA is a convenient ready-to-use liquid type reagent which utilizes MXB (3,3'-bis[N,N-dicarboxymethylaminomethyl]-p-xylenol sulfonphthalein) as a chelating agent. Calcium E-HA based on MXB method is interfered significantly by other serum components.

Principle of the Method

When a sample is added to Buffer and Color, calcium in the sample is combined with methylxylenol blue (MXB) to form a blue color in alkaline conditions. The calcium concentration of the sample is determined by measuring the absorbance of the developed blue color.

Calcium (Ca) Principle of the Method

Standard Procedure

Calcium (Ca) Standard Procedure

Calibrator: Multi-Chem Calibrator A (Available separately)

Ordering Information

Product Storage Condition Shelf Life
Calcium E-HA Buffer 2-10°C 28 months
Calcium E-HA Color 2-10°C 28 months
Calibrator Storage Condition Shelf Life
Multi Calibrator A 2-10°C 12 months

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