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Atomic
Absorption Spectrophotometers
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Accessories & Supplies
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Gas
Chromatographs | Detectors
| Injectors | Options
| Software | Specs.
Injectors
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Several
injection options are available for the Buck 910/310.
Injector types and configurations are selected
by the user depending on the particular measurement
application, detection limit required and regulatory
specifications. All injectors require factory
installation.
On-Column
Injector
The
On-Column injector is supplied standard on all
910/310 GCs. This mode of injection introduces
the sample directly into the bore of the column,
avoiding the possibility of boiling point discrimination
or other uncertainties. A heated injector upgrade
is available.
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Heated
Split/Splitless
The Heated Split/Splitless injector permits the
use of narrow-bore capillary columns when needed.
The injector temperature is adjustable from ambient
to 300ºC and the split flow is adjustable by
means of a precision needle valve. This feature
can be turned on/off by using a timed event from
the PeakSimple software. |
10
Port Gas Sampling Valve
The 10 Port Gas Sampling valve can be plumbed in
many ways to perform a variety of analytical tasks,
providing additional flexibility to the 910. Because
the valve oven is immediately next to the column
oven, tubing runs are short with no cold spots,
which results in sharper peaks. Buck offers many
plumbing configurations for optimized gas analyses. |
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42
Vial Liquid And 20 Vial Internal AutoSampler
The
autosampler uses readily available 2ml vials with
crimp or screw tops. The autosampler flushes its
syringe with the sample itself, so each vial must
be filled with at least 1ml of sample. The PeakSimple
data system tells the autosampler to flush the
syringe, inject the sample and then advance the
tray to the next vial position. The autosampler
can be used with the on-column, heated, or split/splitless
injectors. The 42 vial external Autosampler requires
nitrogen, air or helium at 60 psi to actuate the
moving parts. The internal 20 vial Autosampler
is electronically actuated and is run from peaksimple
sample queue. The injection volume is adjustable
from 0-3 µl.
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Heated Static
Headspace Injector
The Heated Static Headspace Injector is useful for
the analysis of volatiles, especially where the
sample matrix is dirty. A standard 40ml VOA vial
is inserted into a thermostatted sleeve, where two
needles puncture the septum top of the vial. Purge
gas enters through one needle to pressurize the
vial and the other needle carries the headspace
vapors to the loop of the gas sampling valve or
trap. |
EPA
Method 5030/5035 Compliant Purge & Trap
The 5030 as well as the 5035 Compliant Purge &
Trap concentrate the volatile organic compounds
(VOCs) in a gas, water, or soil sample onto two
adsorbent traps from which they are automatically
desorbed into the GC column. The 5035 Purge &
Trap is equipped with an adjustable temperature
thermostatted sleeve that accommodates a standard
40ml VOA vial containing the water or soil/water
sample. The entire sleeve is mechanically agitated
during purging to comply with the requirements of
EPA Method 5035. |
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