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Automation | Accessories

Flexibility and efficiency, musts in fully automatic sample preparation, are provided by intelligent autosamplers for more than just automatic dosing. Functions such as intelligent dilution and reconcentration, automatic dosing of modifiers, and automatic depth adjustment, combined with high dosing precision, make overnight operation a mere routine and guarantee profitable sample throughputs.

solid AA® - direct solid AAS
Conventional methods of elemental analysis can only process liquid samples. Solids, therefore, are subject to a timeconsuming sample preparation process. Analytik Jena‘s solid AA® technology offers an interesting alternative: The direct solid AAS.

Autosamplers for flame mode, hydride techniques and atomic fluorescence

Autosamplers for the flame mode AS 51s and AS 52s make your routine analyses of standards and samples almost fully automatic.

 

Integrated into the overall concept of the basic instruments, either sampler can be simply hung directly into the sample compartment: This saves space and minimizes tubing lengths. And it is the best way to prevent contamination in case of real samples. The intelligent dilution function of the AS 52 makes manual dilution, a time-consuming and error-prone process, unnecessary. Automatically, it dilutes your samples down to a factor of 1:625. If concentrations exceed the calibration range, an automatic clean control prevents contamination of the subsequent samples.

 

Autosampler for graphite technique – more than only a sampler

With MPE, the autosampler for the graphite tube furnace technique, automated sample preparation and analysis are eas:

 
  • Automatic generation of reference curves from one or several stock solutions
  • Dosing of extremely small sample volumes with excellent repeatability
  • Automatic sample dilution and enrichment by a specified factor
  • Intelligent dilution of samples exceeding the calibration range; clean control limits to avoid contamination
  • Automatic enrichment of samples below the calibration range
  • Unique automatic correction of the immersion depth for every vessel containing samples or other liquids
  • Robust, low-noise operation
  • Fast, easy adjustment


Its many functions and the automatic running of optimizing routines make MPE an intelligent sample preparation station.

 

Automatic and manual feeding – direct analysis of solids

Two different feeding systems for solid samples are available:

SSA 6 z – manual solid sampler

Manual module for the reproducible insertion and removal of the sample carrier. Even with external manual weighing, automatic data transfer is made via the ASpect software.

SSA 600 – automatic solid sampler with integrated microbalance

This system allows routine solid AAS. Not only transport of the loaded sample carrier into the furnace but also weighing with the fully integrated microbalance is completely automated. A specially optimized sample carrier can be used for many kinds of solids – from powders to lumps. The carrier geometry ensures
optimum atomizing conditions in the solid tube and reliable transfer processes in sample feeding.

 

The analytical advantages

  • Analysis of the unadulterated original samples
  • No time-consuming sample digestion
  • No dilution effect with substances harmful to health or the environment
  • Minimized risk of contamination
  • High sensitivity
  • Genuine microvolume method (sample quantities in the order of μg or mg)
  • Detection limits in the pg and fg ranges

The economic benefits

  • Speed
  • Reduced costs
  • Flexibility
  • Efficiency

Liquid dosing accessory for versatile applications

With the new liquid dosing module, solid sampling becomes even easier. A liquid calibration out of one or more stock solutions now is done automatically by the sampler. The modifier is also automatically pipetted to each solid or liquid sample.

www.solid-aa.com

 

The measurement and monitoring of mercury and such elements as arsenic or selenium down to low ppb concentrations has always been a challenge. In order to keep the amount of these toxic substances under control in the environment, fast methods and convenient, yet flexible systems are required.

 

If the hydride systems are coupled with the graphite furnace (HydrEA technique), completely new perspectives open up for the measurement of hydride forming elements (such as As, Se, Sb). The option of enrichment in the graphite tube raises detection sensitivity and contamination problems are minimized.

 

Injection module SFS 6

Highly proven performance of optimized accessories like the injection module SFS 6 make the analysis of extensive samples with a high salt or acid content easier.

Scraper

The "Scraper" is an intelligent, automatic, software controlled cleaning device for the nitrous oxide burner head for trouble-free work over a long period.

Online Dilution

Sample measurements, automatic and intelligent dilution of the sample and flushing of the burner and nebulizer/spray chamber during one uninterrupted measurement cycle by the auto-sampler AS 52 with an integrated auto dilution function in combination with SFS 6, fully controlled by the instrument´s control system.

HPT burner

Improvement of sensitivity by increasing the time of stay of the atomic cloud in the flame, quartz or titanium tube in the top of the slit

 
 

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