Features

• Integrated Exhaust System 
• The configuration of exhaust system effectively decontaminates exterior pollution ultimately enhancing the accuracy of the measurements. The shielded optic design greatly reduces light interference and enhances the signal-noise ratio, increasing the sensitivity and precision of the measurement
• Optical Design 
• The AF400 utilizes a unique optical configuration that increases fluorescence intensity and improves detection limit. This arrangement allows approximately twice the fluorescence intensity commonly found in traditional AFS systems.
• Detection
• The integration of high quantum solar photomultiplier tubes ensures stability.
• Gas/Liquid Separator 
• The high efficiency gas/liquid separator of hydride and Hg cold vapour minimising pressure fluctuations and improving measurement precision.
• Hollow Cathode Lamps
• High intensity hollow cathode lamps provide increased intensity and stability. The AF400 multi-channel technology allows lamp configuration to be changed to accommodate application specific requirements allowing either simultaneous analysis increasing efficiency of measurements or ultra-high sensitivity.
• Quartz Atomiser 
• The quart atomizer is selected for durability and long life operation.
• Sample Introduction
• An integral high performance XYZ auto sampler with 2×45 vial trays provides automatic sample introduction and dilution with superior repeatability. The efficient operation maximizes throughput and provides consistent results.
• Reagent Compartment 
• An integral drawer contains up to three reagent bottles with low level indicators.

Specification:

• Atomizer: Quartz tube furnace with automatic ignition of Ar-H2 diffusion flame reduces interference
• Furnace Heating: Computer controlled heating
• Vapor/Hydride Generator: Continuous flow, peristaltic pump, high performance mixing section, gas-liquid separator for cold-vapor mercury determinations and hydride generation determination of As,Se,Te,Bi,Sb,Sn,and other hydride forming elements.
• Peristaltic Pumps: A 3 channel pump with 3 adjustable pressure control clamps and programmable speed control
• Exhaust System: Exhaust system with filter efficiently decontaminates pollutants
• Gas/liquid Separator: High efficiency, two-stage gas-liquid separator design
• Optics Design: Short focal length, non-dispervise,intergrated optical design
• 3 Channels: 3 channels for simultaneous three element analysis, using computer control, modulated, and pulsed light sources
• XYZ Autosampler
• Sample Introduction: High sample capacity, automated introduction of samples and reference standards
• Sample Capacity: Hosts a maximum of 2×45 standard cup/test tube sample racks.
• Detection Limits
• Element:                     Detection Limits (ug/L)      RSD(%)
• As,Se,Pb,Bi,Te,Sn,Sb:    <0.01                            <1.0
• Hg,Cd                           <0.001                           <1.0
• Zn                                 <1.0                              <1.0 
• Ge                                 <0.05                            <1.0
• Baseling Stability: <2%
• Linear Range: >103