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Calcium (Arsenazo)

Calcium (Arsenazo), 25 Test Calcium (Arsenazo), 25 Test, view 2

Photographed: the 25 Test pack, stock code CC1-CAC.37M.

3 pack sizes, 25 to 50 tests · 120 ml.

Choose a pack size

Stock code CC1-CAC.37M

  • Made and batch-released in Vadodara
  • ISO 13485:2016 quality system
  • Datasheet published: see every stock code below

Product details.

Intended use: Calcium (Arsenazo) is a reagent kit for the quantitative estimation of calcium (Ca++) in serum and plasma. It uses the metallochromogen Arsenazo III, which binds calcium at pH 6.75 to form a coloured complex read at 630 nm. Manufactured at Reckon’s Vadodara facility under ISO 13485:2016 quality management, and released against reference standards before dispatch.

The specifications and steps on this page are from the datasheet, last updated 04-2023. The datasheet governs: read it before use, or ask us.

Method
Arsenazo III
Sample
Serum or plasma
Sample volume
10 µl
Wavelength
630/650 nm
Linearity
Up to 20 mg/dl
Storage
2 to 8 °C
Full specification16 items
Pack
25 to 50 tests · 120 ml
Pack sizes
3 to choose from
Datasheet
Published
Method
Arsenazo III, end point (increasing)
Sample
Serum or plasma: fresh, clear, fasting, without hemolysis
Sample volume
10 µl
Reagent volume
1.0 ml
Wavelength
630/650 nm
Incubation
5 minutes at room temperature (25 to 30 °C)
Flowcell temperature
30 °C
Standard
10 mg/dl, included
Colour stability
1 hour, protected from light
Storage
2 to 8 °C, until the expiry date on the label
Stock codes
CC1-CAC.37M, CC1-CAC.37MU, CC3-CAC.37MV
Made in
Vadodara, Gujarat, India
Performance1 figure
Linearity
Up to 20 mg/dl; dilute higher samples with 0.9% saline
Procedure at a glance5 steps
  1. Pipette 1.0 ml of reagent into the blank, standard and test tubes.
  2. Add 0.01 ml of standard to the standard tube and 0.01 ml of sample to the test tube.
  3. Mix and incubate for 5 minutes at room temperature (25 to 30 °C).
  4. Read the standard and the sample against the reagent blank at 630 nm.
  5. Calcium (mg/dl) = absorbance of test ÷ absorbance of standard × 10.

Every stock code.

Calcium (Arsenazo) ships in 3 pack sizes, each with its own stock code.

Stock codes and pack sizes for Calcium (Arsenazo)
Stock code Pack Photograph Datasheet
CC1-CAC.37M 25 Test Calcium (Arsenazo), 25 Test Datasheet PDF, CC1-CAC.37M
CC1-CAC.37MU 50 Test Calcium (Arsenazo), 50 Test Datasheet PDF, CC1-CAC.37MU
CC3-CAC.37MV 2 x 60 ml Calcium (Arsenazo), 2 x 60 ml Datasheet PDF, CC3-CAC.37MV

Questions and answers.

Calcium (Arsenazo): what sample does it need?

The datasheet gives the sample as Serum or plasma: fresh, clear, fasting, without hemolysis. The sample volume is 10 µl.

Calcium (Arsenazo): what method does it use?

The method on the datasheet is Arsenazo III, end point (increasing).

Calcium (Arsenazo): what wavelength is it read at?

According to the datasheet, it is read at 630/650 nm.

Calcium (Arsenazo): what is the linear range?

The datasheet gives the linear range as Up to 20 mg/dl; dilute higher samples with 0.9% saline.

Calcium (Arsenazo): how should it be stored?

The datasheet gives storage as 2 to 8 °C, until the expiry date on the label.

Calcium (Arsenazo): what pack sizes are available?

It comes in 3 pack sizes, each with its own stock code: 25 Test (CC1-CAC.37M), 50 Test (CC1-CAC.37MU), 2 x 60 ml (CC3-CAC.37MV).

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