The Professional VA series consists of compact, multifunctional analyzers designed for voltammetric trace analysis of metal ions and other substances, as well as for the determination of organic additives in electroplating baths using Cyclic Voltammetric Stripping.
- Compact design for efficient use of bench space
- Wide range of current measurement modes and calibration techniques to support diverse applications
- Interchangeable measuring head for quick and simple transitions between methods
- Modular configuration for system customization
- Options for manual, semi-automated, and fully automated operation to match specific requirements
- Advanced viva software for complete system control
Benefits
One System – Many Applications
The Professional VA systems cover the full range of voltammetric and polarographic analysis and can be used for applications such as:
- Trace determination of metals, including cadmium, lead, nickel, cobalt, and iron in seawater, salts, and high-purity chemicals
- Analysis of various transition metal ions in water samples
- Additives and impurities in electroplating solutions
- Determination of copper and iron in boiler feed water
- Measurement of ultra-trace metal species in seawater
- Organic additives in plating solutions with Cyclic Voltammetric Stripping (CVS)
The compact design of the Professional VA helps conserve valuable bench space. When multiple applications are required, the interchangeable measuring head enables quick and easy switching between methods, allowing analysis to continue without interruption.
Highly Sensitive Trace Metal Determinations
The following detection limits apply when a Multi-Mode Electrode is used:
Source: Metrohm USA Inc.
| |
|
|
| Antimony |
SbIII/SbV |
200 ppt |
| Arsenic |
AsIII/AsV |
100 ppt |
| Bismuth |
Bi |
50 ppt |
| Lead |
Pb |
50 ppt |
| Cadmium |
Cd |
50 ppt |
| Chromium |
CrIII/CrVI |
25 ppt |
| Cobalt |
Co |
50 ppt |
| Copper |
Cu |
50 ppt |
| Iron |
FeII/FeIII |
50 ppt |
| Molybdenum |
Mo |
50 ppt |
| Mercury |
Hg |
100 ppt |
| Nickel |
Ni |
50 ppt |
| Platinum |
Pt |
0.1 ppt |
| Rhodium |
Rh |
0.1 ppt |
| Selenium |
SeIV/SeVI |
300 ppt |
| Thallium |
Tl |
50 ppt |
| Uranium |
U |
25 ppt |
| Tungsten |
W |
200 ppt |
| Zinc |
Zn |
50 ppt |
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Higher Throughput with Automation
The Professional VA can be customized with automation and liquid-handling modules to reduce manual workload while improving accuracy and reproducibility.
For example, Dosinos can be used to manage reagent and sample additions, pump stations can handle automatic rinsing, and a sample processor can enable fully automated analyses, delivering highly precise and reproducible results without operator intervention.
Image Credit: Metrohm USA Inc.
Full System Control with Viva
The Professional VA and all connected modules are operated through the user-friendly and powerful viva software. With viva, methods can be adapted and edited to fully match specific application requirements.
The viva database stores all determinations together with the associated data, such as curves and results. Information is presented clearly in a practical list, and individual determinations can be opened with a single click. Built-in sorting, searching, and filtering functions make it quick and easy to locate specific data. Recorded results can also be reprocessed, for example, to perform retroactive recalibration using a newly measured standard solution.
Image Credit: Metrohm USA Inc.
Systems
884 Professional VA
The 884 Professional VA is the universal entry-level instrument in the Professional VA/CVS series. When used in combination with a compatible measuring head and electrode set, it enables reliable trace analysis determinations.
Image Credit: Metrohm USA Inc.
884 Professional VA Manual for Multi-Mode Electrode (MME)
The 884 Professional VA manual for the Multi-Mode Electrode (MME) is the entry-level instrument for high-end trace analysis using voltammetry and polarography with the Multi-Mode Electrode Pro, the scTRACE Gold, or the Bismuth electrode.
884 Professional VA Manual for CVS
The 884 Professional VA manual for CVS applications is the entry-level instrument for high-end determination of organic additives in electroplating baths using Cyclic Voltammetric Stripping (CVS), Cyclic Pulse Voltammetric Stripping (CPVS), and chronopotentiometry (CP), as well as for voltammetric heavy metal determinations with rotating disk electrodes.
Image Credit: Metrohm USA Inc.
884 Professional VA Semiautomated für Multi-Mode Electrode (MME) with 2 Dosinos
The 884 Professional VA semiautomated for Multi-Mode Electrode (MME) is a convenient high-end routine analyzer for trace determinations using voltammetry and polarography with the Multi-Mode Electrode pro or the scTRACE Gold.
Image Credit: Metrohm USA Inc.
884 Professional VA Fully Automated for VA
The automated analysis system enables high-performance and flexible trace determinations using voltammetry and polarography with the Multi-Mode Electrode pro or the scTRACE Gold.
Image Credit: Metrohm USA Inc.
884 Professional VA Fully Automated for the Determination of Antioxidants
Automated analysis system for the voltammetric determination of antioxidants in lubricants, featuring automatic sample preparation with a sample changer.
Image Credit: Metrohm USA Inc.
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Options and Upgrades
Automation
Increase the Sample Throughput
The Professional VA system can be expanded with a range of automation modules to improve throughput, accuracy, and reliability of analyses:
- Dosinos for automatic addition of reagents and samples
- Sample processors enabling fully automated analysis of up to 56 samples in a single run
- Pump stations for automatic rinsing of the measuring vessel
- Level sensors to issue alerts when waste containers are full and to prevent overflow
Sample Preparation
Quick and Effective Sample Preparation
Organic contamination in a sample can interfere with the voltammetric analysis of trace levels of heavy metals. The 909 UV Digester rapidly and effectively decomposes organic molecules through UV photolysis (in accordance with DIN 38406, Parts 16 and 17), ensuring reliable determinations.
Software
User-Friendly Software
The Professional VA are controlled with viva software.
Benefits include:
- Methods can be adapted to specific laboratory requirements
- All information can be managed within the database
- All relevant parameters can be configured as needed
- Data can be evaluated, and user-specific results can be generated
- Customized reports can be created
- Specific user rights can be defined to ensure laboratory security
- Method settings can be automatically adjusted according to sample properties