Some drying applications produce exhaust vapors that are hazardous. Even
small volume samples, dried rapidly in quantity in the DNA SpeedVac
®
, in
aggregate can emit volatile solvents to the atmosphere. Add a post-trap or a
chemical trap.
For samples labeled with radioactivity, Thermo Scientific strongly recommends an
adsorbent filter be attached to the DNA SpeedVac exhaust port. This prevents
release into the laboratory environment. The DTK120R Chemical Trap Kit traps
volatile radioactivity and organic solvent vapors. Periodically, the exhaust from the
DTK120R Chemical Trap should be monitored for radioactivity to make sure the
filter cartridge is not depleted. A typical configuration is shown in Figure 1, shown
on page 6.
For questions regarding a specific application, contact Thermo Scientific.
APPENDIX 1
PROPER HANDLING OF HAZARDOUS EXHAUST VAPORS
(
1)
Prewarm the chamber, set switch B “Heater” to med setting 10 to 15
minutes prior to placing samples into the rotor.
(2)
When the total volume of sample exceeds 6 to 8 ml per run, a small
amount of aerosol is created at exhaust port. Use the post-trap
assembly to collect the condensate (ANT100).
(3)
The DNA SpeedVac is compact enough to place in a laboratory fume
hood, if necessary.
(4)
Before using the DNA SpeedVac for applications other than those
recommended, contact Thermo Electron for additional information.
APPENDIX 2
OPERATING HINTS
10
Trapping exhaust vapors containing volatile
radioactivity with the DNA SpeedVac
®
Out
Exhaust
Port
located on
left side
Chemical Trap
& Cartridge
DTK120R
In
Change the disposable
cartridge DC120R every
month if system is used
everyday.
FIGURE 1. DTK120R CHEMICAL TRAP KIT
DNA120
Содержание Thermo Scientific Savant SpeedVac DNA120
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