UHPLC Nano Flow Sensor

Sensirion, a leading supplier of microsensor solutions, presents a new Nano Flow Sensor for Ultra High Pressure Liquid Chromatography (UHPLC) applications. Key features are a pressure rating of 1000 bar (15000 psi) and a short response time of 30 ms. These properties mean that the high-end SLG64-0075 device is especially suited for monitoring dynamic flow rates in cutting-edge chromatography systems. This flow meter (US Pat. 6813944), which is based on CMOSens® technology, is designed to accurately measure flow rates up to 5 microliters per minute and features an additional high flow mode for up to 20 microliters per minute.

A highly sensitive CMOSens® microchip that is mounted on the outside of an internal, straight fused silica capillary (ID 75 um) detects the flow while remaining totally isolated from the media. By using this technology, great repeatability for analyses - the most important criterion in chromatography – is ensured. The fully digital, calibrated liquid flow meter operates with repeatability that is better than 0.6% of the measured value. Moreover, the sensor offers resolutions down to 0.5 nl/min and better. The SLG64-0075 is equipped with stainless steel fittings for 1/16” capillaries and an I²C interface for digital communication. An RS485 bus interface is offered as an alternative option.

About Sensirion

The Swiss sensor manufacturer Sensirion AG is a leading international supplier of CMOS-based sensor components and systems. Its range of high-quality products includes humidity and temperature sensors, mass flow meters and controllers, gas and liquid flow sensors, and differential pressure sensors. Sensirion supports its international OEM customers with tailor-made sensor system solutions for a wide variety of applications. Among others, they include analytical instruments, consumer goods, and applications in the medical technology, automotive and HVAC sectors. Sensirion products are distinguished by their use of patented CMOSens® technology. This enables customers to benefit from intelligent system integration, including calibration and digital interfaces. Sensirion’s competence as a reliable OEM partner is underlined by its quality management system, which was certified in March 2008 in accordance with the ISO/TS 16949 standard.