Principle
Calcium with Arsenazo III at neutral pH yields a blue coloured complex. The intensity of the color formed is directly proportional to calcium concentration.
Procedure
Reaction type …………End-Point
Reaction time …………… 2 mins. at R.T.(25-30°C)
Wavelength ……………. …………. 650 nm.(620 – 650 nm.)
Zero setting with ………………. Reagent Blank
Blank absorbance limit …………………………. <0.800 Abs.
Sample volume ………… 0.02 ml (20 ur)
Reagent volume ………………… 1.0 ml
Standard concentration ………… 10 mg%
Linearity …………… 15 mg/dl
Quality Control
To ensure adequate quality control, it is recommended that each batch should include a normal and an abnormal commercial reference control serum. It should be realized that the use of quality control material checks both instrument and reagent functions together. Factors which might affect the performance of this test include proper instrument function, temperature control, cleanliness of glassware and accuracy of pipetting.
Other Details
The kit should be stored at R.T. (25-30°C) and is stable till the expiry date indicated on the label.
Sagar Rai –
I’m fully satisfied with this reagent quality