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Atomic
Absorption Spectrophotometers
Infra-Red Spectrophotometers
UV/Visible Spectrophotometers
Gas Chromatographs
Dedicated Analyzers
High Performance Liquid Chromatographs
Accessories & Supplies
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For
parts-per-trillion level detectability
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Part
Number:
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Description:
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Continuous
Flow Hydride/Cold Vapor System
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Overview
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Model-420 is an easily adaptable accessory for
Flame AA Spectrophotometers that allows PPT detectability
for As, Se, Sb, Sn, Te, Bi and Ge using standard
hydride generation procedures. Using inert polymer
components and a reliable pumping system, users
can quickly switch between flame and hydride.
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Features
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Allows
superior detection limits for hydride metals compared
to graphite furnace AAS, typically in the 100-500
parts-per-trillion range. |
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Can
install easily and rapidly to existing flame set-up
and run within 2 minutes. |
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Does
not require hydrogen gas |
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Continuous
flow pump design allows for simple interfacing
of intelligent auto-sampler for high-throughput,
unattended operation. |
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4
order of magnitude dynamic range using the Buck
Model 210VGP AA system for the highest accuracy
over a wide range of sample concentrations.....minimizing
dilutions and errors. |
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Inert
tubing gives rapid equilibration time allowing
typical throughputs of 50 samples per hour with
reproducibilities of better than 2% at the 500
ppt level. |
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Optimized
procedures for all the hydride elements eliminates
development time and simplifies operations for
the chemist or lab technician. |
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Low
format footprint requires minimal bench space
and unit can be put on a cart or side table. |
Specifications
Mechanical
design: |
3-channel
peristaltic pump system with 8.5ml/minute solution
delivery. |
Power
requirements: |
110-120VAC/60Hz
for US and 208-240VAC/50Hz for INTL |
Sample
throughput: |
~50
samples per hour using Buck Model-210 Flame AAS.
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Gas
Requirements: |
Argon
@ ~15 PSIG delivery |
Response
Time: |
Equilibration
is reached for Hydride Generation within 60 seconds.
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Dimensions: |
14"W
x 12"D x 10"H |
| Weight: |
20
lbs. |
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