Process analysis applications
- AN-PAN-1068Online analysis of copper, tin, and zinc in white bronze baths by XRF
This Application Note explains how the 2060 XRF Process Analyzer enables real-time chemical monitoring of copper, tin, and zinc concentrations in white bronze plating baths.
- EB-004Near-infrared and Raman spectroscopy for polymer analysis: An introduction
This e-book explains how Raman and near-infrared (NIR) spectroscopy enable rapid, nondestructive polymer analysis, ensuring high quality while reducing costs and waste.
- AN-PAN-1067Online analysis of organic additives in copper plating process
Monitoring organic additives in copper plating baths is crucial. The 2060 CVS Process Analyzer optimizes copper electroplating by providing precise bath control.
- AN-PAN-1066Online analysis of cadmium in incineration plant wet gas scrubbers
Incineration flue gas requires treatment such as wet scrubbing. The 2060 VA Process Analyzer monitors heavy metals in the scrubbing water, ensuring compliance.
- AN-PAN-1064Monitoring complexing agents in galvanic baths inline with Raman spectroscopy
Accurate analysis of complexing agents in galvanic baths is possible with inline Raman spectroscopy. This Application Note shows an example using a 2060 Raman Analyzer.
- AN-PAN-1065Inline monitoring of cell cultures with Raman spectroscopy
This Process Application Note presents a method to accurately monitor lactic acid and glucose inside a bioreactor in «real-time» with the 2060 Raman Analyzer from Metrohm Process Analytics.
- WP-093Significant cost savings through dynamic ventilation during nitrification in wastewater treatment
This White Paper gives an overview of the energy-intensive nitrification process that converts ammonia into less harmful nitrogen compounds at wastewater treatment plants (WWTPs). It displays the results from a field test at a WWTP, showcasing the positive influence of single-method process analyzers on the efficiency of the nitrification process.
- AN-PAN-1063Inline analysis of borate and sulfate solutions with Raman spectroscopy
Boric acid is growing in demand for various industrial applications, but requires a more cost-efficient and environmentally friendly production process. This Application Note describes the performance of a Raman process analyzer (PTRam) when measuring low-concentration boric acid and sodium sulfate solutions (<100 mg/L) during boric acid production.
- AN-PAN-1025Online analysis of ammonia in ammonia-saturated brine
In the Solvay process, ammonium hydrogen carbonate and table salt are converted to sodium hydrogen carbonate and ammonium chloride. Heating the former yields sodium carbonate (soda), an important raw material for the soap and glass industries. Ammonia is an incipient and is regenerated almost completely through conversion of the ammonium chloride with lime milk (Ca(OH)2).A Metrohm process analyzer monitors the ammonia content in the saturated table salt solution after absorption tower, thus guaranteeing a good product yield in the carbonization tower. Additional parameters which can be determined with the analyzer in the Solvay process include: alkalinity, carbonate, chloride, calcium oxide and carbon dioxide.
- AN-PAN-1062Online monitoring of sulfuric acid and hydrogen peroxide using Raman spectroscopy
Etching is a vital process in semiconductor fabrication, involving the chemical removal of layers from the wafer substrate. Strict quality control measures are necessary to determine acid etchant concentrations in mixed acid solutions (e.g., SPM, DSP, or DSP+), critical for optimizing etch rate, selectivity, and uniformity during multiple wafer etching steps. This application presents a method to measure sulfuric acid and hydrogen peroxide in etching baths simultaneously using Raman spectroscopy with the PTRam Analyzer from Metrohm Process Analytics.
