Micro gas dilution from PPM to PPB using only one small precise instrument

Product catalog summary

Project Overview: The project, in collaboration with Università degli Studi di Roma “La Sapienza”, focuses on semiconductor photocatalysis. It is managed by Dr. Maria Laura Santarelli, a seasoned chemist and researcher with extensive experience in polymers, materials, and optoelectronics.

Role of MCQ Instruments: MCQ Instruments played a crucial role by providing advanced gas blending technology, which significantly enhanced the project's efficiency and effectiveness.

Technical Specifications: The project achieved a high dilution ratio, transitioning from 400 ppm to 500 ppb, using MCQ's Gas Blenders. This allowed for stable flow rates from 0.1 ml/min to 500 ml/min without cut-off, crucial for accurate photocatalyst testing.

Benefits and Savings: The use of MCQ's technology reduced the time required for successful experiments from 15 days to 20 minutes, demonstrating a 1000-fold improvement. This efficiency was achieved with a single Gas Blender 100 Series device and its Pro Version software, eliminating the need for multiple mass flow controllers and extensive setup.

Flow Stability and Automation: The software automation feature enabled seamless experiment execution, enhancing flow stability and reducing manual intervention. This stability is vital for maintaining consistent test conditions over extended periods.

Comparison with Traditional Methods: Traditional methods required multiple devices and were time-consuming, unstable, and inaccurate for low concentration gas mixtures. MCQ's solution streamlined the process, offering precise control and reproducibility.

Conclusion: The integration of MCQ Instruments' technology into the project at La Sapienza has revolutionized the approach to semiconductor photocatalysis, offering significant time savings, improved accuracy, and enhanced experimental capabilities.

Catalog excerpts

Micro gas dilution from PPM to PPB using only one small precise instrument-1

0 HIGH DILUTION RATIO Saptenza UniversftAdi Roma A SOLID BUSINESS CASE IN COLLABORATION WITH L’UNIVERSITA’ DEGLI STUDI Dl ROMA “LASAPIENZA" GENERAL INFORMATION ABOUT THE PROJECT Semiconductor PhotocataLysys DEPARTMENT: Deparment of Chemical MateriaLs, and Environmental Engineering HEAD OF PROJECT MANAGEMENT: Dr.ssa Maria Laura SantareLLi - [email protected] ROLE OF MCQ INSTRUMENTS: A revolutionary KEY ROLE that made the whoLe project possibLe MORE INFORMATION ABOUT THE HEAD OF THE PROJECT Maria Laura SantareLLi, Chemist, PhD in Engineering. Lecturer at the Universita' degLi studi di Roma “La Sapienza". Researcher. She pubLished various internationaL and nationaL scientific papers. More than 20 years of experience in research for the science of poLymers, materiaLs and petroLeum derived. RecentLy she added in her experience the best practices for the study of the MateriaLs for OptoeLectronic and Graphene.

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Micro gas dilution from PPM to PPB using only one small precise instrument-2

DESCRIPTION OF THE APPLICATION AND THE TARGET Standard dictates to measure the overall capacity of the photocatalyst in removing the nitrous oxide, NOx, using and air ﬂow containing NO and NO2 (1ppmv) within an average test time of 5,0 h in lighting condition and with a ﬂow rate of 1.5 L/min. The level of exhaust used is about 500 ppbv. Given the low stability and the diﬃculty to ﬁnd gas test cylinder in such low concentrations, we decided to use standard Mass Flow Controller to reduce through mixing ultrapure air at 500 ppbv of NOx tanks as balance with standard cylinders with a concentration...

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