Development of a Novel Mass Spectrometric ... - Jacobs University
Development of a Novel Mass Spectrometric ... - Jacobs University
Development of a Novel Mass Spectrometric ... - Jacobs University
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Results and Discussion<br />
found to comprise an m/z 422 which was observed earlier in S1. This looks like the<br />
secret even mass additive inserted to the regular components. Similar to S4, the<br />
grease sample S7 in figure 3-69 covers a wide mass range (m/z 200 to m/z 700).<br />
The contaminated through usage car motor oil (S9) appears to comprise additional<br />
components not generally observed in other car motor oil samples within the<br />
chosen list. The mass spectrum appears to have a depleted composition as shown<br />
in figure 3-70.<br />
Table 3.7 A selection <strong>of</strong> different car oils from different companies<br />
Sample Trade Name Specification<br />
S1 Calpam Mineral öl Motorenöl 10-40 W<br />
S2 LIQUI MOLY GmbH 5 W - 30 HC Synthese<br />
S3 Mitan Mineraöl GmbH SAE 15 W-40<br />
S4 Castrol Epx 90 Viscous<br />
S5 Pentosin For central Hydraluc system<br />
S6 LIQUI MOLY GmbH Transmission fluid<br />
S7 Grease CRC MoS2<br />
S8 Ford 75-90 BO (Transmission Öl)<br />
S9 Dirty Oil from unknown car Used<br />
S10 Aral Motoröl (Old Auto) 15W-40<br />
S11 Alpine TS 10W-40 (Semi synthetic)<br />
93