Table. 1.
Comparison of total and hands-on times using manual vs. automated sample preparation methods used in this study for 48 samples
| Protocol steps | Manual | Automated |
|---|---|---|
| Sample transfer | ||
| Calibrator (N = 6), QC (N = 3), blank (N = 2), and sample (N = 39) transfer | 6 min | 27 min |
| Protein precipitation | ||
| 0.1 M ZnSO4 addition (and mixing) | 8 min | 2 min |
| Internal standard solution addition (and mixing) | 10 min | 3 min |
| Centrifugation | 10 min | 20 min |
| Sample Transfer | ||
| Supernatant transfer | 3 min | 3 min |
| Total time | 37 min | 55 min |
| Total hands-on time | 27 min | 2 min |
Lab Med Online 2023;13:199~204 https://doi.org/10.47429/lmo.2023.13.3.199
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