Table 1. Details of the biochemical analytes studied for stability in blood sample following exposures to different temperature and time conditions, their methodology for analysis, and the platforms/instruments used.

Analyte studied/Sample type used	Methodology used for analysis	Platforms used in analysis
Abbreviations: HDL, high-density lipoprotein; LDL, low-density lipoprotein; TAG, triglycerides.
C-reactive protein (Serum)	Immunoturbidimetric	Beckman Coulter, AU 480, USA
Total protein (serum)	Spectrophotometric, Biuret	Beckman Coulter, AU 680, USA
Albumin (serum)	Spectrophotometric, BCP dye binding	Beckman Coulter, AU 680, USA
Ferritin (serum)	Chemiluminescence/two-site sandwich immunoassay	Advia Centaur XP, Siemens, USA
Soluble transferrin receptor (serum)	Immunoturbidimetric	Beckman Coulter, AU 480, USA
Vitamin B12 (serum)	Chemiluminescence/two-site sandwich immunoassay	Advia Centaur XP, Siemens, USA
Vitamin 25 (OH) D (serum)	Chemiluminescence/two-site sandwich immunoassay	Advia Centaur XP, Siemens, USA
Glucose (plasma)	Spectrophotometric, hexokinase (UV)	Beckman Coulter, AU 680, USA
Total cholesterol (serum)	Spectrophotometric, cholesterol oxidase esterase peroxidase	Beckman Coulter, AU 680, USA
HDL (serum)	Spectrophotometric, direct measure-PEG/CHOD	Beckman Coulter, AU 680, USA
LDL (serum)	Spectrophotometric, Direct Measure/CHOD	Beckman Coulter, AU 680, USA
TAG (serum)	Spectrophotometric, enzymatic endpoint	Beckman Coulter, AU 680, USA
Creatinine (serum)	Spectrophotometric, alkaline picrate kinetic (Jaffe's method)	Beckman Coulter, AU 680, USA