Thermo Scientific Corona Veo CAD with Peak 1010 Nitrogen Generator

The Thermo Scientific Corona Veo Charged Aerosol Detector (CAD), paired with the Peak 1010 Nitrogen Generator, forms a high-performance, universal detection solution designed for HPLC and UHPLC systems. The Corona Veo CAD operates on the principle of charged aerosol detection, where the column eluent is first nebulized into fine droplets using high-purity nitrogen. These droplets then pass through a heated evaporation tube where the volatile mobile phase is removed, leaving behind dry analyte particles. These particles subsequently collide with positively charged nitrogen ions generated by a corona discharge, acquiring a surface charge proportional to their mass. A high-sensitivity electrometer then measures this charge, producing a signal directly proportional to the amount of analyte. This mechanism allows the Corona Veo to detect nearly all non-volatile and most semi-volatile compounds regardless of their optical or structural properties, making it exceptionally valuable for substances lacking chromophores such as sugars, lipids, polymers, surfactants, and pharmaceutical excipients. With a wide flow rate compatibility ranging from 0.01 to 2.0 mL/min, it seamlessly integrates with capillary, microbore, standard, and UHPLC columns, while its data acquisition rate of up to 200 Hz ensures precise capture of narrow chromatographic peaks generated by high-speed separations.

The accompanying Peak 1010 Nitrogen Generator is a dedicated gas supply system engineered specifically to meet the stringent requirements of the Corona Veo CAD. Utilizing advanced membrane separation technology, it delivers a continuous, on-demand supply of high-purity, dry nitrogen at a consistent flow rate of up to 5 L/min and an output pressure of 80 psi (5.5 bar), with a purity level greater than 98%. This eliminates the operational hazards, pressure fluctuations, and logistical burdens associated with high-pressure nitrogen cylinders, while also reducing long-term operational costs. The generator features a compact, space-saving design that can be stacked directly with the Corona Veo detector or placed conveniently on the lab bench, and it includes an intuitive full-color touchscreen interface for easy monitoring and control. For laboratories without a pre-existing compressed air line, the Peak 1010 is available with an integrated air compressor, ensuring immediate out-of-the-box functionality. By providing a stable and contaminant-free nitrogen stream for both nebulization and the corona discharge process, the Peak 1010 is critical in maintaining low baseline noise, high signal-to-noise ratios, and excellent reproducibility, which are essential for reliable quantitative analysis down to sub-nanogram levels.

Together, this integrated system addresses many of the limitations found in traditional HPLC detectors such as Refractive Index (RI) and Evaporative Light Scattering Detectors (ELSD). Unlike RI detectors, the Corona Veo CAD is compatible with gradient elution and offers significantly higher sensitivity and a much broader linear dynamic range (typically 4 to 5 orders of magnitude). Compared to ELSD, it provides 3 to 10 times greater sensitivity, more uniform response factors across different compound classes, and superior baseline stability. This makes the Corona Veo with Peak 1010 an ideal choice for pharmaceutical quality control (e.g., impurity profiling, excipient quantification, forced degradation studies), biopharmaceutical analysis (e.g., polysorbate quantification in protein formulations), food and beverage testing (e.g., carbohydrate and sweetener analysis), and research in metabolomics, lipidomics, and polymer chemistry. The system supports seamless integration with major chromatography data systems such as Thermo Fisher’s Chromeleon, Agilent’s OpenLab, Waters’ Empower, and others, facilitating streamlined workflow, automated control, and compliance with GLP/GMP data integrity requirements. Offering a unique combination of universality, sensitivity, and operational convenience, this detector-generator pair stands as a cornerstone instrument for modern analytical laboratories demanding precise and versatile quantitative LC detection.