Continuous Flow Hydride/Cold Vapor System

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Continuous Flow Hydride/Cold Vapor System

Product catalog summary

Features

Superior detection limits for hydride metals, typically in the 100-500 parts-per-trillion range, outperforming graphite furnace AAS.
Quick installation and operation within 2 minutes without the need for hydrogen gas.
Continuous flow pump design supports high-throughput, unattended operation with an intelligent auto-sampler.
Dynamic range of 4 orders of magnitude using the Buck Model 210VGP AA system, ensuring high accuracy across various sample concentrations.
Inert tubing allows rapid equilibration, enabling throughput of 50 samples per hour with reproducibility better than 2% at 500 ppt.
Optimized procedures for hydride elements simplify operations and reduce development time.
Compact design requires minimal bench space, suitable for placement on a cart or side table.

Overview

The Model-420 is an adaptable accessory for Flame AA Spectrophotometers, enabling parts-per-trillion detectability for elements like As, Se, Sb, Sn, Te, Bi, and Ge using standard hydride generation procedures. It features inert polymer components and a reliable pumping system for easy switching between flame and hydride modes.

Specifications

Power requirements: 110-120VAC/60Hz (US) and 208-240VAC/50Hz (International).
Gas requirements: Argon at approximately 15 PSIG delivery.
Dimensions: 14"W x 12"D x 10"H; Weight: 20 lbs.
Mechanical design: 3-channel peristaltic pump system with 8.5ml/minute solution delivery.
Sample throughput: Approximately 50 samples per hour using Buck Model-210 Flame AAS.
Response time: Equilibration for Hydride Generation is reached within 60 seconds.

Detection Limits

Examples of detection limits for the BUCK Model-420 Hydride System based on optimized Model-210 AA data:

Arsenic (As): 193.7nm, Min. DL at 10 PPB: 0.15 PPB, RSD: 1.5%
Bismuth (Bi): 223.1nm, Min. DL at 10 PPB: 0.25 PPB, RSD: 2.1%
Antimony (Sb): 206.8nm, Min. DL at 10 PPB: 0.20 PPB, RSD: 1.8%
Selenium (Se): 196.0nm, Min. DL at 10 PPB: 0.35 PPB, RSD: 2.6%
Tin (Sn): 286.3nm, Min. DL at 10 PPB: 1.0 PPB, RSD: 8.5%
Tellurium (Te): 214.3nm, Min. DL at 10 PPB: 0.30 PPB, RSD: 3.1%

Catalog excerpts

Continuous Flow Hydride/Cold Vapor System-1

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.

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Continuous Flow Hydride/Cold Vapor System-2

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 06855...

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