表1
Tab | Parameter | Setting |
MS | Scan type | Enhanced MS(EMS) |
Polarity | Positive | |
MCA | Select checkbox | |
Start(amu)/Stop(amu) | 400.000/1000.000 | |
Optimize Masses | Click button | |
Number of scans to sum | 1 | |
Cycles | 10 | |
Advanced MS | Scan rate(Da/s) | 10,000 |
Fixed LIT fill time(ms) | 0.5ms | |
Q0 Trapping | Deselect checkbox |
表2
(M+nH)n+ monoisotopic m/z for charge of Glu-Fibrinopeptide B | |||||
+1 | +2 | +3 | +4 | +5 | +6 |
1570.6768 | 785.8421 | 524.2305 | 393.4247 | — | — |
表3
Tab | Parameter | Setting |
Resolution | Q1 Resolution | Unit |
MS | Scan type | EPI |
Polarity | Positive | |
Product Of(amu) | 785.9 | |
MCA | Select checkbox | |
Start(amu)/Stop(amu) | 100.000/280.000 275.000/1000.000 | |
Optimize Masses | Click button | |
Number of scans to sum | 1 | |
Cycles | 10 | |
Advanced MS | Scan rate(Da/s) | 20,000 |
Fixed LIT fill time(ms) | 10 | |
Q0 Trapping | Off |
表4 Theoretical fragment ions of Glu-Fibrinopeptide B
b ions | y ions | ||
(m/z) | Fragment | (m/z) | Fragment |
— | — | 1570.6768 | EGVNDNEEGFFSAR |
130.0499 | E | 1441.6342 | GVNDNEEGFFSAR |
187.0713 | EG | 1384.6128 | VNDNEEGFFSAR |
286.1397 | EGV | 1285.5444 | NDNEEGFFSAR |
400.1827 | EGVN | 1171.5014 | DNEEGFFSAR |
515.2096 | EGVND | 1056.4745 | NEEGFFSAR |
629.2525 | EGVNDN | 942.4316 | EEGFFSAR |
758.2951 | EGVNDNE | 813.3890 | EGFFSAR |
887.3377 | EGVNDNEE | 684.3464 | GFFSAR |
944.3592 | EGVNDNEEG | 627.3249 | FFSAR |
1091.4276 | EGVNDNEEGF | 480.2565 | FSAR |
1238.4960 | EGVNDNEEGFF | 333.1881 | SAR |
1325.5281 | EGVNDNEEGFFS | 246.1561 | AR |
1396.5652 | EGVNDNEEGFFSA | 175.1190 | R |
1552.6663 | EGVNDNEEGFFSAR | — | — |
表5
m/z | 246.156 | 333.188 | 480.257 | 627.325 | 684.346 | 813.389 | 942.432 |
Intensity | 7e5 | 4.1e6 | 4.0e6 | 1.5e6 | 7.0e6 | 4.0e6 | 2.5e6 |
质量指标名称 | 质量指标 | 测量方法 |
m/z为786的intensity | ≥3e6 | Q1 scan |
m/z为785.8的intensity | ≥3e6 | EMS scan |
仪器名称 | 型号 | 厂家 |
QTRAP5500 | QTRAP5500 | AB SCIEX |
试剂名称 | 型号 | 厂家 |
乙腈 | HPLC 4L | Fisher Chemical |
纯水 | millpore | |
甲酸 | HPLC 50ml | 迪马 |
Glu-Fibrinopeptide B | 100μg | AB SCIEX |
耗材名称 | 型号 | 厂家 |
离心管 | 1.5ml | 爱思进 |
枪头 | 10μl、200μl、1000μl | 爱思进 |
注射器 | 一体100μl,内径1.46mm | 迪马 |