Particle counting on a nanoscale

Published: 12-Jan-2005


A new instrument that combines laser light scattering (LLS), differential mobility analysis (DMA), and condensation particle counting (CPC) to automatically count and size aerosol particles from 10nm to 10,000nm has been developed by German company htt high tech trade.

With measurement capabilities previously available only in separate bulky packages, the Model 1000XP combines high-resolution miniature components, state-of-the-art electronics, and advanced computer technology to create what is claimed to be one of the most advanced and user-friendly instruments ever developed for airborne particle counting and sizing. The instrument provides 12, 24, 48, 96 and 126 channels of size resolution. The scientist, engineer or system manager can create as many recipes as required for a variety of aerosol studies. These recipes are then stored in memory to be recalled at any time, thus ensuring the same instrument settings can be used for data collection each time a given recipe is put into use. This recipe-driven operation is said to minimise set-up errors and ensure repeatable data collection. Data analysis software is included to allow export data to a laptop/host computer and convert count distribution data to volume and surface area distributions. Data fitting routines are also provided to allow fitting of size distribution of data by mono-modal, bi-modal and tri-modal distribution functions.

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In regulated manufacturing, monitoring environmental conditions and critical equipment is essential to protect product quality, yield, and patient safety. Facilities often use a Facility Monitoring System (FMS) to track factors like airborne particles, temperature, and humidity. Beyond regulatory compliance, FMS delivers real business value through reduced waste, improved yield, higher quality, and greater profitability

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