Journal ArticleDOI
Liquid flow sensor for nano‐ and micro‐flow ranges
TLDR
In this paper, a new generation of liquid flow sensors that is capable of meeting the requirements as imposed by the life science, analysis, biotech and other markets is presented, using tubes made of silica, stainless steel or PEEK.Abstract:
Purpose – To present a new generation of liquid flow sensors that is capable of meeting the requirements as imposed by the life science, analysis, biotech and other marketsDesign/methodology/approach – A description of the design and development of low flow rate measuring system and typical applicationsFindings – The system described uses tubes made of silica, stainless steel or PEEK, and either constant power or constant temperature methods in conjunction with a heater and temperature sensor The tested instruments were capable of measuring flow ranges between 25‐500 nl/min (smallest flow range) and 100‐2000 μl/min (largest flow range) water, with operating pressures up to 100 bar (up to 400 bar for flow meters with flow ranges below 100 μl/min)Originality/value – Presents information on a new generation of liquid flow sensorsread more
Citations
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Journal ArticleDOI
Instrument platforms for nano liquid chromatography.
TL;DR: This review discusses and summarizes past and current trends in the realization of nano liquid chromatography (nano LC) platforms and gives special attention to the mobile phase delivery under nanoflow rates (isocratic, gradient) and sample injection to the nanocolumn.
Journal ArticleDOI
Miniaturization of liquid chromatography coupled to mass spectrometry.: 2. Achievements on modern instrumentation for miniaturized liquid chromatography coupled to mass spectrometry
Deyber Arley Vargas Medina,Edvaldo Vasconcelos Soares Maciel,Ana Lúcia de Toffoli,Fernando Mauro Lanças +3 more
TL;DR: In this article, the main advantages and challenges of miniaturized liquid chromatography coupled to mass spectrometry are discussed. And the essential characteristics of atmospheric pressure ionization for miniaturised LC-MS were highlighted, and a discussion regarding the current state-of-the-art about the use of electron ionization is also presented.
Journal ArticleDOI
Micro‐flow sensor for water using NTC thick film segmented thermistors
TL;DR: In this article, a micro-flow sensor using a self-heated segmented thermistor (TFST) was proposed for measuring the water flow in a water capillary, which exhibits good stability, suitable sensitivity and inertia for integral measurements of water flow.
Journal ArticleDOI
Micro-flow metering and viscosity measurement of low viscosity Newtonian fluids using a fibreoptical spatial filter technique
Dieter Petrak,H. Rauh +1 more
TL;DR: In this article, an experimental method that is capable of measuring liquid flows of the order of millilitres per hour was described, which can be determined by measurement of the centreline velocity and application of the equation of Hagen-Poiseuille.
Book ChapterDOI
Microfluidic Flow Sensing Approaches
TL;DR: In this article, the authors review the currently available products on the market, their microfluidic flow sensing technologies, the technologies with research and development, the major factors impacting flow metrology, and the prospective sensing approaches for future microfluide flow sensing.
References
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Book
Fundamentals of Heat and Mass Transfer
TL;DR: This paper introduced the physical effects underlying heat and mass transfer phenomena and developed methodologies for solving a variety of real-world problems, such as energy minimization, mass transfer, and energy maximization.