Continuous Flow Hydride/Cold Vapor System
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Overview The 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. Model 1018 Combination Batch Hydride Generator Model 420 Continuous Flow Hydride Generator • 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. • Optimized procedures for all the hydride elements eliminates development time and simplifies operations for the chemist or lab technician. • Low format footprint requires minimal bench space and unit can be put on a cart or side table.

Mechanical design: 3-channel peristaltic pump system with 8.5ml/minute solution delivery. Sample throughput: ~50 samples per hour using Buck Response time: Equilibration is reached for Hydride Generation within 60 seconds. Power requirements: Gas requirements: Dimensions: Weight: Argon @ ~15 PSIG delivery 14"W x 12"D x 10"H 20 lbs. Example of Detection Limits for the BUCK Model-420 Hydride System (based on data from optimized Model-210 AA) Element Arsenic (As) Bismuth (Bi) Antimony (Sb) Selenium (Se) Tin (Sn) Tellurium (Te) 1-800-562-5566 58 Fort Point Street • East Norwalk, CT...