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Metal Analysis Atomic Fluorescence Spectrometer For Agricultural , AF420

Metal Analysis Atomic Fluorescence Spectrometer For Agricultural , AF420

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Product Details:
Brand Name: PG instruments
Certification: CE
Model Number: AF420 Atomic Fluorescence Spectrometer
Payment & Shipping Terms:
Minimum Order Quantity: 1 unit
Price: Contact for a Quote
Packaging Details: Carton package
Delivery Time: Contact for confirmation
Payment Terms: T/T,L/C
Supply Ability: 500 units per year
Detailed Product Description
High Light:

metal analysis spectrometer


UV Visible Spectroscopy

Metal Analysis Atomic Fluorescence Spectrometer For Agricultural , AF420







Public health

Food and beverage






Sample Automisation
Atomizer Quartz furnace tube with auto ignition
Furnace heating Computer controlled heating
Hydride generator Continuous flow high performance for cold-vapour mercury and hydride determinations of As, Se, Te, Bi, Sb, Sn, Zn, Pb, Cd, Ge
Gas requirement High purity argon gas (99.99%) 30psi
Sample and Delivery

Carrier and Reagent Delivery

Gas/Liquid Separator

Gas pressure driven system

High efficiency gas/ liquid separator with magnetic stirring and Peltier cooling

Optical design Short focal length, non-dispersive double beam
Light source

3 channel simultaneous element analysis using computer controlled.

Modulated and pulsed, hollow cathode light source

Baseline stability <1.5%
Baseline Noise <1.5%
Linear range >10
Operating System
Interface USB,RS232
Operating Software PFWin software
Safety Gas alarm for low pressure and flow
Power requirements 100-240V 50/60hz 300VA
Dimensions 60x57x45cm



The Atomic Fluorescence Spectroscopy (AFS) technique is widely used for determination of hydride forming elements and Mercury analysis. The technique provides an alternative to the conventional method of connecting a hydride generator to an Atomic Absorption Spectrophotometer (AAS). Due to the high intensity Hollow Cathode lamp source and low baseline noise offered by this technique, the usable sensitivity is greatly improved offering very low detection limits (ppt).

The AFS instrument fulfils the analysis by means of simultaneous detection, accurate sample introduction and stable furnace temperature control complementing the more widely used AAS flame/graphite systems.

Standard Features


Light Source

  • High intensity hollow cathode lamps for improved sensitivity and stability.
  • Pre-aligned lamp assemblies for trouble free installation.
  • All lamps are uniquely data coded offering important information to the PF Win operating software.
  • l Up to 3 lamps can be installed for simultaneous analysis.

Optical System

  • Double beam optical system to eliminate drift from the light source and the detector.
  • Shielded optical design greatly reducing light interference.
  • Enhanced signal to noise ratio for increased analytical sensitivity.
  • Unique optical configuration for increased Fluorescence intensity. Up to twice the intensity found in traditional AFS systems.
  • High Quantum Solar Blind detector fitted as standard toensure optimum stability.


Atomiser System

  • High precision quartz tube designed for optimum performance, durability and long life.
  • Adjustable height control for improved optimisation.
  • Integrated 2 stage, fully sealed, fume exhaust system to decontaminate toxic elements and pollution.
  • Gold Mesh fitted to the chimney removes any mercury pollutant.

Hydride Generator

  • Integrated continuous flow Hydride System.
  • Gas pressure sampling offers maintenance free operation.
  • Online auto dilution and multiple auto purge by gas driven sequential injection system.
  • Fully sealed reservoir bottles for extended solution life.
  • New design Gas Liquid Separator with magnetic stirring for improved repeatability of analytical results.
  • Liquid Separator cooled directly by specially designed Peltier system to remove unwanted water in the formed hydride and greatly reduce Fluorescence quenching thus increasing the sensitivity.
  • Unique high volume reagent storage positioned outside of the instrument to reduce contamination.
  • Connection of carrier and reducer liquids to instrument using long life chemical resistant FEP tubing.

Electronic Control

  • High technology electronics and PCB components.
  • PF Win 3.0 software offers full control of AF420 instrument and accessories.
  • Windows operating software
  • New features include: QC functions, online data sharing, self diagnostics, result and resource management.
  • Full GLP version available for multiuser group management and log.

Detection Limit


Element Detection Limit (ug/l) RSD %
Arsenic (As) <0.01 <1%
Bismuth (Bi) <0.01 <1%
Cadmium (Cd) <0.001 <1%
Germanium (Ge) <0.05 <1%
Mercury Hg) <0.001 <1%
Lead (Pb) <0.01 <1%
Antimony (Sb) <0.01 <1%
Selenium (Se) <0.01 <1%
Tin (Sn) <0.01 <1%
Tellurium (Te) <0.01 <1%
Zinc (Zn) <1.0 <1%


















Auto Sampler

  • lX, Y, Z drive configuration.
  • Fully controlled by PFWin software.
  • Inert robust probe and FEP tubing.
  • Improved probe wash. Simultaneous inner and outer wall wash.
  • Large volume standard stock solution.
  • Removable inert sample tray and rack.
  • 3 sizes of sample racks available to accommodate 10ml,25ml and 50ml test tubes.

Speciation Analyser

  • Built in HPLC pump. Isocratic/gradient
  • Fitted with conventional column (optional column oven available).
  • Manual or automatic sample input ( with optional auto sampler).
  • Detect and separate inorganic and organic compounds. High separation performance.
  • Fast analysis < 12min.

Speciation Detection Limits


Element Specification Limit (ug/l) %
As Arsenite (As III) 0.04 <5%
Dimethylarsenic acid (DMA) 0.08 <5%
Monomethylarsenic acid (MMA) 0.08 <5%
Arcenate (As V) 0.2 <5%
Hg Inorganic (Hg II) 0.05 <5%
Methylmercury ( MeHg) 0.05 <5%
Ethylmercury (EtHg) 0.05 <5%
Phenylmercury (PhHg) 0.1 <5%
Se Selenocysteine (SeCys) 0.3 <5%
Selenite (Se IV) 0.1 <5%
Selnomethionine (SeMet) 2.0 <5%
Selenate (SE VI) 0.5 <5%
Sb Sb III 0.1 <5%
Sb V 0.5 <5%


Contact Details
PG Instruments Limited

Contact Person: Miss. April Cao

Tel: 86 -10 -69910653

Fax: 86-010-69910516

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