Table 1.

Serum biochemical profile

Biochemical parameter	Analytical method	Linearity	Intra-assay variation (CV%)	Inter-assay variation (CV%)
Total protein	Biuret	2.0–120 g/l	1.1	1.5
Albumin	Albumin bromocresol green (BCG)	2–60 g/l	0.7	1.0
Globulin	Calculated parameter	–	–	–
Urea	UV kinetic – Urease	0.5–40 mmol/l	2.1	3.4
Creatinine	Enzymatic – PAP	5–2700 μmol/l	1.1	1.2
Calcium	o-cresolphtalein complexone	0.20–5 mmol/l	1.0	1.6
Phosphate	Phosphomolybdate	0.10–6.46 mmol/l	0.7	1.4
Magnesium	Xylidyl blue	0.10–2.0 mmol/l	1.1	1.3
Sodium	Indirect potentiometry	80–180 mmol/l	0.3	0.5
Chlorine	Indirect potentiometry	60–140 mmol/l	0.3	0.6