Table 4.
Stability of the peptides and proteins in Mitra tips stored at −80 °C.
| Protein | Peptide | 8 weeks |
22 weeks |
||
|---|---|---|---|---|---|
| % of initial | SD | % of initial | SD | ||
| apoA-I | THLAPYSDELR | 105.1 | 2.5 | 95.6 | 5.3 |
| apoB | FPEVDVLTK | 103.6 | 1.5 | 96.3 | 7.3 |
| GFEPTLEALFGK | 107.8 | 5.1 | 110.4 | 8.6 | |
| apoC-I | TPDVSSALDK | 108.9 | 6.2 | 106.3 | 10.9 |
| apoC-III | GWVTDGFSSLK | 108.3 | 1.4 | 90.4 | 7.4 |
| apoE | SELEEQLTPVAEETR | 92.8 | 3.6 | 94.5 | 2.1 |
| AATVGSLAGQPLQER | 96.6 | 5.4 | 99.0 | 7.7 | |
| LGPLVEQGR | 104.4 | 2.0 | 101.5 | 5.7 | |
| HSA | DDNPNLPR | 106.2 | 0.6 | 99.5 | 7.7 |
| LVNEVTEFAK | 109.3 | 1.1 | 94.6 | 6.7 | |
Stability is expressed as the% response ratio after 8 and 22 weeks of storage at −80 °C compared to the response ratio obtained at the initial measurement (1 day after loading).