Steel deflectors

The 2 pi of the concentrated peptide solution was mixed with 4 pi of 2,5-dihydroxybenzoic acid [ 7 mg in 500 pi of the mixture of acetonitrile/0.1% trifluoroacetic acid, 1/2 (v/v)]. The resulting mixture was applied to the MALDI steel plate and left to crystallise. Afterwards, the MALDI-TOF mass spectra were measured by a BIFLEX IV instrument (Bruker, Germany) under appropriate conditions (potential 19 kV on the plate and 15.05 kV on the deflector, positive reflector mode potential 20 kV, laser intensity 50 or 60%). The range of detected masses was from 600 to 3000 Da. For the external calibration the standard mixture of peptides M-Pep was used. 

Missile barriers have frequently been provided in nuclear power plants to absorb the energy of postulated missiles and to prevent their travel beyond the barrier. Usually missile barriers consist of reinforced concrete slabs or of steel plates. However, other means such as woven steel mats or missile deflectors could also be used. Generally the barrier should be placed at the source of the missiles, as stated in para. 2.40. 

LVWS large volume water sampler, stainless steel, internal reversing thermometers, partition wall in the middle part, one opening with deflector plate, poor flushing characteristics 270,400 130, 220 ul (TO) HB... 

The standard deviation reported in Figure 3 indicates that the maximum temperature varies from specimen to specimen per sample. After subsequent analysis, it was realized that the flame test procedure should be modified to include a heat shield around the specimen in order to prevent additional hot air flow from affecting the temperature reading on the back side of the steel plate. With the additional heat deflector, it is assumed that the standard deviation of the maximum temperature would decrease per sample. 

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