When discussing chemical analysis, the first thing that comes to mind is a chemist working in the laboratory analyzing a sample.
However, in the industrial process world chemical analysis is a much more complicated affair. In the metalworking industry for example, corrosion is a complex problem. The conventional approach (offline analysis systems) is costly, and a more proactive approach is needed for prevention, identification, and manufacturing of high quality metalworking products. Therefore, a more comprehensive sample monitoring and analysis approach is necessary in order to comply with such requirements.
While offline analysis systems depend upon an analyst to collect and process samples, an online analysis system allows for continuous monitoring of multiple parameters in real time without being dependent on an analyst.
Need to refresh your knowledge about the differences between online, inline, and atline analysis? Read our blog post: «We are pioneers: Metrohm Process Analytics».
The implementation of Process Analytical Technologies (PAT) provides a detailed representation in real time of the actual conditions within a process. As a complete solution provider, Metrohm Process Analytics offers the best solutions for online chemical analysis. We seek to optimize process analysis by developing flexible, modular process analyzers that allow multiple analyses of different analytes from a representative sample taken directly at the process site.
Want to learn more about PAT? Check out our article series here: «To automate or not to automate? Advantages of PAT – Part 1».
2060 IC Process Analyzer
With more than 40 years of experience with online process analysis, Metrohm Process Analytics has always been committed to innovation. In 2001, the first modular IC system was developed at Metrohm and it was a success. In the past several years Metrohm Process Analytics focused on implementing more modular flexibility in their products, which resulted in the introduction of the next generation of Process Ion Chromatographs: the 2060 IC Process Analyzer (Figure 1) in 2019. It is built using two 930 Compact IC Flex systems and is in full synergy with the Metrohm process analyzer portfolio (such as the 2060 Process Analyzer).
For more background behind the development of IC solutions for the process world, check out our previous blog posts featuring the past of the 2060 IC Process Analyzer:
Using the 2060 platform, modularity is taken to the next step. Configurations of up to four wet part cabinets allow numerous combinations of multiple analysis modules for multiparameter measurements on multiple process streams, making this analyzer unequal to any other on the market.
This modular architecture gives the additional possibility to place separate cabinets in different locations around a production site for a wide angle view of the process. For example, the 2060 IC Process Analyzer can be set up at different locations to prevent corrosion on the water steam cycles in fossil and nuclear power plants.
The 2060 IC Process Analyzer is managed using flexible software enabling straightforward efficient control and programming options. With multiple types of detectors available from Metrohm, high precision analysis of a wide spectrum of analytes is possible in parallel.
The inclusion of an optional (pressureless) ultrapure water system for autonomous operation and reliable trace analysis also benefits users by providing continuous eluent production possibilities for unattended operation (Figure 2).
Finally, the well-known Metrohm Inline Sample Preparation (MISP) techniques are an added bonus for process engineers for repeatable, fully automated preparation of challenging sample matrices.
Figure 2. Continuous eluent production integrated in the 2060 IC Process Analyzer.
The collection of samples and process data, including corrosion prevention and control indicators, is critical for efficient plant management in many industries. In order to prevent unscheduled plant shutdowns, accidents, and damage to company assets, process engineers rely on their colleagues in the lab to pinpoint corrosion problems. One of the most effective ways to bridge laboratory analyses to the process environment is to employ real-time analysis monitoring.
Figure 3. Product and process optimization differences between offline, atline, online, and inline analysis.
Optimal online corrosion management
Be it quantifying the harmful corrosive ions (e.g., chlorides, sulfates, or organic acids), measuring corrosion inhibitors (e.g., ammonia, amines, and film-forming amines), or detecting corrosion products, the 2060 IC Process Analyzer is the ideal solution for 24/7 unattended analysis.
In a nuclear power plant, this analyzer can measure a number of analytes including inorganic anions, organic cations, and aliphatic amines to ensure a thorough understanding of corrosive indications without needing multiple instruments.
Figure 4. Water sample from the primary circuit of a pressurized water reactor containing 2 g/L H3BO3 and 3.3 mg/L LiOH spiked with 2 μg/L anions (preconcentration volume: 2000 μL).
Figure 5. Simulated sample from the primary circuit of a pressurized water reactor containing 2 g/L H3BO3 and 3.3 mg/L LiOH spiked with 2 μg/L nickel, zinc, calcium, and magnesium (preconcentration volume: 1000 μL).
Providing quick, reliable results, this system gives valuable insight into the status of corrosion processes within a plant by continuous comparison of results with control values. By correlating the results with specific events, effective corrective action can quickly be undertaken to prevent or minimize plant downtime.
For more information about the determination of anions and cations in the primary circuit of nuclear power plants with the 2060 IC Process Analyzer, download our free Application Notes below.
Online drinking water analysis
In drinking water plants and beverage bottling companies, determination of disinfection byproducts (DBPs) like bromate is crucial due to their carcinogenic properties. The carcinogen bromate (BrO3–) has a recommended concentration limit of 10 μg/L of in drinking water set by the World Health Organization.
Nowadays, ion chromatography has been proven to be the best routine analysis method for water analysis, due to its possibility of automated sample preparation, various separation mechanisms, and different types of detectors. Some of the analytical standards that support this include: EPA 300.1, EPA 321.8, ASTM D6581, ISO 11206, and ISO 15061.
The 2060 IC Process Analyzer can monitor trace levels of bromate in drinking water online, meaning higher throughput, less time spent performing manual laboratory tests, and better quality drinking water.
Figure 6. Drinking water sample, spiked with 10 μg/L each of chlorite, bromate, chlorate, 40 μg/L each of nitrate, bromide, 100 μg/L phosphate, and 500 μg/L dichloroacetate.
Figure 7. Analysis of a mineral water sample spiked with 0.5 μg/L bromate.
To learn more about the online analysis of bromate in drinking water with the 2060 IC Process Analyzer, download our free Application Note.
Monitoring aerosols and gases in air
Approximately 92% of the world population lives in places where the World Health Organization air quality guideline levels are not met. Air pollution can exacerbate preexisting health conditions and shorten lifespans. It has even been suggested as a link to infertility causes. Hence, understanding the impact of air pollution and air constituents on the environment and our wellbeing is of great significance.
Air pollution is caused not only by gaseous compounds, but also by aerosols and particulate matter (PM). These extremely fine particles enter and damage the lungs; from them, ultrafine particles can spread across the body through the blood cells and cause symptoms of inflammation. While these risks are being debated and researched actively around the world, it is still not known which compounds actually cause harm.
As a result, there is a great need for more specific data on long-term measurements. Fast analytical methods and real-time measurements of concentrations of chemical compounds in ambient air are important and should make it possible to better understand the circumstances and effects.
For optimal air quality monitoring, the gas and aerosol composition of the surrounding air has to be analyzed practically simultaneously as well as continuously, which is possible via inline analysis with ion chromatography.
Metrohm Process Analytics offers the 2060 MARGA (Monitor for AeRosols and Gases in ambient Air) which thanks to its dual-channel ion chromatograph, can automatically analyze the ions from the collected gas and aerosol samples.
If you want to learn more background behind the development of the 2060 MARGA, check out our previous blog post: History of Metrohm IC – Part 5.
For a full list of free downloadable 2060 IC applications, visit our website and check out the Metrohm Application Finder!
Free Application Notes
For the 2060 IC Process Analyzer
Post written by Andrea Ferreira, Technical Writer at Metrohm Applikon, Schiedam, The Netherlands.