Page 8 - Shimadzu LCMS-IT-TOF

Basic Performance Supporting High-Quality Data

Compatibility of High Sensitivity and Mass Accuracy

100 attomol of Fibrinopeptide A

MS 1 M.W. 1535.6852
768.8472
ADSGEGDFLA EGGGVR
Ion Measured Expected Error (ppm)
[M+2H] 2 + 768.8472 768.8506 -4.4

Ion Measured Expected Error (ppm)
760.0 770.0 780.0 790.0 m/z
y4 388.2332 388.2308 6.2
y5 445.2506 445.2523 -3.8
y6 574.3000 574.2949 8.9
y7 645.3255 645.3320 -10.1
MS 2 y 7
b7 y8 758.4197 758.4161 4.7
y b9
5 y9 905.4801 905.4845 -4.9
y 6 y11 1077.5442 1077.5329 10.5
y 4 y 8 y 9 y 11 b7 632.2098 632.2164 -10.4

b9 892.3636 892.3688 -5.8
400 600 800 1000 1200 1400 m/z

Extended Stability in Mass Accuracy

The high-accuracy temperature control mechanism of the flight ysis, it is extremely important to achieve stable high mass accuracy
tube, the localized ion due to BIE from the QIT, and the effective over a wide mass range using an external standard. In the LCMS-IT-
10-bit high-speed transient recorder enable extremely stable mass TOF, TOF mass calibration can be automatically performed to main-
accuracy using the external standard method. Due to labor-inten- tain the stability for an extended period of time.
sive work required when using an internal standard for LC/MS anal-

m/z External Standard Method (m/z 1064: NaTFA)
1064.820
1064.818
1064.816
1064.814
1064.812
1064.810 2 ppm
1064.808
1064.806
1064.804
1064.802
1064.800
0 200 400 600 800 1000 1200 1400 1600 1800
min

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