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Calcium

Categories

  • Chemistry
  • Health Assessment and Safety

General Information

Code:T524
Matrix:Serum / Plasma
Application:Insurance Risk Assessment, Wellness
Turnaround Time:Daily
Analytical - Method:Method according to Schwarzenbach with o-cresolphthalein complexone.3 Calcium ions react with o-cresolphthalein complexone (o-CPC) under alkaline conditions to form a violet colored complex. The addition of 8-hydroxyquinoline prevents interference by magnesium and iron. Alkaline pH Ca2+ + o-CPC calcium-o-CPC complex The color intensity of the complex formed is directly proportional to the calcium concentration and is measured photometrically.
Units - Conventional:mg/dL

Specimen Information

Minimum Volume:300 µL
Preferred Volume:500 µL
Rejection Criteria:Improper labeling, improper sample handling, and wrong sample type.
Collection Instructions:See "Blood Collection"
Collection Patient Preparation:NA
Container:Only the specimens listed below were tested and found acceptable. Serum: Fresh serum collected in the fasting state is the preferred specimen. Plasma: Li‑heparin plasma.