Table 2. Comparison of CV% of level 2 control for biochemical analytes on Cobas 6000 and Cobas C311 from April-September 2023.
| Parameter | April | May | June | July | Aug | Sept | Average | |||||||
| A | B | A | B | A | B | A | B | A | B | A | B | A | B | |
| Albumin | 2.76 | 1.14 | 2.43 | 1.59 | 2.08 | 1.32 | 2.75 | 1.43 | 2.8 | 1.01 | 3.91 | 1.51 | 2.78 | 1.33 |
| ALP | 1.65 | 1.91 | 2.08 | 0.88 | 1.37 | 1.31 | 1.66 | 2.2 | 2.46 | 2.12 | 1.92 | 0.8 | 1.85 | 1.53 |
| SGPT/ALT | 1.85 | 1.13 | 1.38 | 0.8 | 2.24 | 1.18 | 1.91 | 0.93 | 3.27 | 2.01 | 1.82 | 0.99 | 2.07 | 1.17 |
| SGOT/AST | 2.5 | 1.2 | 1.24 | 0.84 | 2.32 | 0.99 | 1.7 | 0.72 | 2.28 | 1.68 | 1.81 | 1.11 | 1.97 | 1.09 |
| Bilirubin, Direct | 2.79 | 1.84 | 2.4 | 1.4 | 3.05 | 1.73 | 1.95 | 0.95 | 2.3 | 1.53 | 2.51 | 2.08 | 2.5 | 1.58 |
| Bilirubin, Total | 2.41 | 3.33 | 3.18 | 1.26 | 1.91 | 2.26 | 2 | 2.16 | 3.9 | 3.06 | 2.94 | 4.69 | 2.72 | 2.79 |
| Calcium | 1.27 | 1.16 | 1.28 | 1.12 | 1.26 | 0.57 | 1.2 | 0.69 | 1.05 | 2.2 | 1.19 | 1.14 | 1.2 | 1.14 |
| Creatinine | 4.06 | 1.96 | 3.78 | 3.49 | 4.09 | 2.1 | 3.35 | 1.75 | 3.27 | 1.76 | 3.71 | 1.94 | 3.71 | 2.16 |
| GGT | 1.76 | 1.67 | 0.68 | 0.79 | 1.61 | 0.61 | 1.86 | 0.73 | 1.05 | 0.74 | 1.56 | 0.67 | 1.42 | 0.86 |
| Glucose | 1.63 | 1.07 | 1.74 | 1.1 | 1.34 | 0.93 | 1.41 | 0.9 | 1.92 | 1.39 | 0.98 | 1.16 | 1.5 | 1.09 |
| LDL | 2.33 | 2.08 | 2.13 | 1.71 | 2.21 | 1.73 | 2.54 | 1.53 | 1.97 | 2.71 | 3.09 | 1.67 | 2.37 | 1.9 |
| Phosphorus | 1.53 | 1.07 | 2.08 | 0.99 | 1.8 | 1.47 | 1.49 | 0.83 | 1.2 | 0.86 | 1.06 | 0.75 | 1.52 | 0.99 |
| Protein, Total | 2.08 | 1.37 | 1.86 | 1.1 | 1.4 | 1.12 | 0.93 | 0.96 | 1.62 | 1.03 | 1.15 | 1.15 | 1.5 | 1.12 |
| Triglycerides | 1.39 | 1.93 | 1.39 | 1.97 | 1.61 | 1.43 | 1.51 | 1.88 | 1.73 | 1.66 | 1.62 | 1.64 | 1.54 | 1.75 |
| Uric Acid | 1.68 | 2.48 | 1.68 | 0.94 | 1.51 | 1.17 | 2.36 | 1.36 | 2.14 | 1.47 | 1.91 | 0.94 | 1.88 | 1.39 |
| Urea | 1.99 | 3.43 | 1.84 | 1.2 | 1.85 | 1.12 | 2.13 | 1.68 | 1.89 | 1.45 | 1.65 | 1.09 | 1.89 | 1.66 |
| Cholesterol | 1.4 | 1.41 | 1.58 | 1.32 | 1.85 | 0.92 | 1.92 | 1.32 | 1.82 | 1.52 | 2.08 | 1.15 | 1.77 | 1.27 |
| HDL | 2.48 | 1.47 | 2.48 | 2.14 | 0 | 2.25 | 1.18 | 1.61 | 0 | 1.58 | 1.17 | 1.81 | 1.21 | 1.81 |
| Sodium | 1.12 | 0.95 | 1.12 | 0.71 | 0.87 | 0.71 | 0.79 | 0.67 | 0.71 | 0.71 | 1.25 | 0.71 | 0.97 | 0.74 |
| Potassium | 1.54 | 1.32 | 1.31 | 0.72 | 1.1 | 0.45 | 0.9 | 0.61 | 0.88 | 0.67 | 1.79 | 0.75 | 1.25 | 0.75 |
| Chloride | 1.25 | 1.15 | 1.22 | 0.6 | 1.29 | 0.57 | 1.15 | 0.48 | 1.05 | 0.72 | 1.01 | 0.59 | 2.78 | 0.68 |
| Note: | ||||||||||||||
| A = Cobas 6000 | ||||||||||||||
| B= Cobas C311 | ||||||||||||||
| SGPT = Serum Glutamic Pyruvic Transaminase | ||||||||||||||
| SGOT= Serum Glutamic Oxaloacetic Transaminase | ||||||||||||||
| GGT = Gamma Glutamyl Transferase | ||||||||||||||
| LDL= Low Density Lipoprotein | ||||||||||||||
| HDL= High Density Lipoprotein |